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124 results on '"Erduran, M. N."'

1. AGATA - Advanced Gamma Tracking Array

Author

Akkoyun, S., Algora, A., Alikhani, B., Ameil, F., de Angelis, G., Arnold, L., Astier, A., Ataç, A., Aubert, Y., Aufranc, C., Austin, A., Aydin, S., Azaiez, F., Badoer, S., Balabanski, D. L., Barrientos, D., Baulieu, G., Baumann, R., Bazzacco, D., Beck, F. A., Beck, T., Bednarczyk, P., Bellato, M., Bentley, M. A., Benzoni, G., Berthier, R., Berti, L., Beunard, R., Bianco, G. Lo, Birkenbach, B., Bizzeti, P. G., Bizzeti-Sona, A. M., Blanc, F. Le, Blasco, J. M., Blasi, N., Bloor, D., Boiano, C., Borsato, M., Bortolato, D., Boston, A. J., Boston, H. C., Bourgault, P., Boutachkov, P., Bouty, A., Bracco, A., Brambilla, S., Brawn, I. P., Brondi, A., Broussard, S., Bruyneel, B., Bucurescu, D., Burrows, I., Bürger, A., Cabaret, S., Cahan, B., Calore, E., Camera, F., Capsoni, A., Carrió, F., Casati, G., Castoldi, M., Cederwall, B., Cercus, J. -L., Chambert, V., Chambit, M. El, Chapman, R., Charles, L., Chavas, J., Clément, E., Cocconi, P., Coelli, S., Coleman-Smith, P. J., Colombo, A., Colosimo, S., Commeaux, C., Conventi, D., Cooper, R. J., Corsi, A., Cortesi, A., Costa, L., Crespi, F. C. L., Cresswell, J. R., Cullen, D. M., Curien, D., Czermak, A., Delbourg, D., Depalo, R., Descombes, T., Désesquelles, P., Detistov, P., Diarra, C., Didierjean, F., Dimmock, M. R., Doan, Q. T., Domingo-Pardo, C., Doncel, M., Dorangeville, F., Dosme, N., Drouen, Y., Duchêne, G., Dulny, B., Eberth, J., Edelbruck, P., Egea, J., Engert, T., Erduran, M. N., Ertürk, S., Fanin, C., Fantinel, S., Farnea, E., Faul, T., Filliger, M., Filmer, F., Finck, Ch., de France, G., Gadea, A., Gast, W., Geraci, A., Gerl, J., Gernhäuser, R., Giannatiempo, A., Giaz, A., Gibelin, L., Givechev, A., Goel, N., González, V., Gottardo, A., Grave, X., Grȩbosz, J., Griffiths, R., Grint, A. N., Gros, P., Guevara, L., Gulmini, M., Görgen, A., Ha, H. T. M., Habermann, T., Harkness, L. J., Harroch, H., Hauschild, K., He, C., Hernández-Prieto, A., Hervieu, B., Hess, H., Hüyük, T., Ince, E., Isocrate, R., Jaworski, G., Johnson, A., Jolie, J., Jones, P., Jonson, B., Joshi, P., Judson, D. S., Jungclaus, A., Kaci, M., Karkour, N., Karolak, M., Kaşkaş, A., Kebbiri, M., Kempley, R. S., Khaplanov, A., Klupp, S., Kogimtzis, M., Kojouharov, I., Korichi, A., Korten, W., Kröll, Th., Krücken, R., Kurz, N., Ky, B. Y., Labiche, M., Lafay, X., Lavergne, L., Lazarus, I. H., Leboutelier, S., Lefebvre, F., Legay, E., Legeard, L., Lelli, F., Lenzi, S. M., Leoni, S., Lermitage, A., Lersch, D., Leske, J., Letts, S. C., Lhenoret, S., Lieder, R. M., Linget, D., Ljungvall, J., Lopez-Martens, A., Lotodé, A., Lunardi, S., Maj, A., van der Marel, J., Mariette, Y., Marginean, N., Marginean, R., Maron, G., Mather, A. R., Mȩczyński, W., Mendéz, V., Medina, P., Melon, B., Menegazzo, R., Mengoni, D., Merchan, E., Mihailescu, L., Michelagnoli, C., Mierzejewski, J., Milechina, L., Million, B., Mitev, K., Molini, P., Montanari, D., Moon, S., Morbiducci, F., Moro, R., Morrall, P. S., Möller, O., Nannini, A., Napoli, D. R., Nelson, L., Nespolo, M., Ngo, V. L., Nicoletto, M., Nicolini, R., Noa, Y. Le, Nolan, P. J., Norman, M., Nyberg, J., Obertelli, A., Olariu, A., Orlandi, R., Oxley, D. C., Özben, C., Ozille, M., Oziol, C., Pachoud, E., Palacz, M., Palin, J., Pancin, J., Parisel, C., Pariset, P., Pascovici, G., Peghin, R., Pellegri, L., Perego, A., Perrier, S., Petcu, M., Petkov, P., Petrache, C., Pierre, E., Pietralla, N., Pietri, S., Pignanelli, M., Piqueras, I., Podolyak, Z., Pouhalec, P. Le, Pouthas, J., Pugnére, D., Pucknell, V. F. E., Pullia, A., Quintana, B., Raine, R., Rainovski, G., Ramina, L., Rampazzo, G., La Rana, G., Rebeschini, M., Recchia, F., Redon, N., Reese, M., Reiter, P., Regan, P. H., Riboldi, S., Richer, M., Rigato, M., Rigby, S., Ripamonti, G., Robinson, A. P., Robin, J., Roccaz, J., Ropert, J. -A., Rossé, B., Alvarez, C. Rossi, Rosso, D., Rubio, B., Rudolph, D., Saillant, F., Şahin, E., Salomon, F., Salsac, M. -D., Salt, J., Salvato, G., Sampson, J., Sanchis, E., Santos, C., Schaffner, H., Schlarb, M., Scraggs, D. P., Seddon, D., Şenyiğit, M., Sigward, M. -H., Simpson, G., Simpson, J., Slee, M., Smith, J. F., Sona, P., Sowicki, B., Spolaore, P., Stahl, C., Stanios, T., Stefanova, E., Stézowski, O., Strachan, J., Suliman, G., Söderström, P. -A., Tain, J. L., Tanguy, S., Tashenov, S., Theisen, Ch., Thornhill, J., Tomasi, F., Toniolo, N., Touzery, R., Travers, B., Triossi, A., Tripon, M., Tun-Lanoë, K. M. M., Turcato, M., Unsworth, C., Ur, C. A., Valiente-Dobon, J. J., Vandone, V., Vardaci, E., Venturelli, R., Veronese, F., Veyssiere, Ch., Viscione, E., Wadsworth, R., Walker, P. M., Warr, N., Weber, C., Weisshaar, D., Wells, D., Wieland, O., Wiens, A., Wittwer, G., Wollersheim, H. J., Zocca, F., Zamfir, N. V., Ziȩbliński, M., and Zucchiatti, A.

Subjects
Physics - Instrumentation and Detectors, Nuclear Experiment
Abstract

The Advanced GAmma Tracking Array (AGATA) is a European project to develop and operate the next generation gamma-ray spectrometer. AGATA is based on the technique of gamma-ray energy tracking in electrically segmented high-purity germanium crystals. This technique requires the accurate determination of the energy, time and position of every interaction as a gamma ray deposits its energy within the detector volume. Reconstruction of the full interaction path results in a detector with very high efficiency and excellent spectral response. The realization of gamma-ray tracking and AGATA is a result of many technical advances. These include the development of encapsulated highly-segmented germanium detectors assembled in a triple cluster detector cryostat, an electronics system with fast digital sampling and a data acquisition system to process the data at a high rate. The full characterization of the crystals was measured and compared with detector-response simulations. This enabled pulse-shape analysis algorithms, to extract energy, time and position, to be employed. In addition, tracking algorithms for event reconstruction were developed. The first phase of AGATA is now complete and operational in its first physics campaign. In the future AGATA will be moved between laboratories in Europe and operated in a series of campaigns to take advantage of the different beams and facilities available to maximize its science output. The paper reviews all the achievements made in the AGATA project including all the necessary infrastructure to operate and support the spectrometer., Comment: This version contains a correction of a typing error in the caption of Fig. 2. The DOI to the article published in Nucl. Instr. Meth A was also added

Published
2011
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2. Study of fission fragments produced by 14N + 235U reaction

Author

Yalçinkaya, M., Ganioglu, E., Erduran, M. N., Akkus, B., Bostan, M., Gürdal, G., Ertürk, S., Balabanski, D., Rainovski, G., Danchev, M., Dragomirova, R., Minkova, A., Vyvey, K., Beetge, R., Fearick, R. W., Mabala, G. K., Roux, D. G., Whittaker, W., Babu, B. R. S., Lawrie, J. J., Naguleswaran, S., Newman, R. T., Rigolet, C., Pilcher, J. V., Smith, F. D., Sharpey-Shafer, J. F., Fülöp, Zsolt, editor, Gyürky, György, editor, and Somorjai, Endre, editor

Published
2006
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3. Neutron detection and γ-ray suppression using artificial neural networks with the liquid scintillators BC-501A and BC-537

Author

Söderström, P. A., Jaworski, G., Valiente Dobón, J. J., Nyberg, J., Agramunt, J., de Angelis, G., Carturan, S., Egea, J., Erduran, M. N., Ertürk, S., de France, G., Gadea, A., Goasduff, A., González, V., Hadyńska-Klȩk, K., Hüyük, T., Modamio, V., Moszynski, M., Di Nitto, A., Palacz, M., Pietralla, N., Sanchis, E., Testov, D., Triossi, A., Wadsworth, R., Söderström, P. -A., Jaworski, G., Valiente Dobón, J. J., Nyberg, J., Agramunt, J., de Angelis, G., Carturan, S., Egea, J., Erduran, M. N., Ertürk, S., de France, G., Gadea, A., Goasduff, A., González, V., Hadyńska-Klȩk, K., Hüyük, T., Modamio, V., Moszynski, M., Di Nitto, A., Palacz, M., Pietralla, N., Sanchis, E., Testov, D., Triossi, A., and Wadsworth, R.

Subjects
Liquid scintillator, Astrophysics::High Energy Astrophysical Phenomena, BC-537, BC-501A, Digital pulse-shape discrimination, Fast-neutron detection, Instrumentation, Neural network, Nuclear and High Energy Physic
Abstract

In this work we present a comparison between the two liquid scintillators BC-501A and BC-537 in terms of their performance regarding the pulse-shape discrimination between neutrons and γ rays. Special emphasis is put on the application of artificial neural networks. The results show a systematically higher γ-ray rejection ratio for BC-501A compared to BC-537 applying the commonly used charge comparison method. Using the artificial neural network approach the discrimination quality was improved to more than 95% rejection efficiency of γ rays over the energy range 150 to 1000 keV for both BC-501A and BC-537. However, due to the larger light output of BC-501A compared to BC-537, neutrons could be identified in BC-501A using artificial neural networks down to a recoil proton energy of 800 keV compared to a recoil deuteron energy of 1200 keV for BC-537. We conclude that using artificial neural networks it is possible to obtain the same γ-ray rejection quality from both BC-501A and BC-537 for neutrons above a low-energy threshold. This threshold is, however, lower for BC-501A, which is important for nuclear structure spectroscopy experiments of rare reaction channels where low-energy interactions dominates.

Published
2019

4. Study of fission fragments produced by 14N + 235U reaction

Author

Yalçınkaya, M., Ganioglu, E., Erduran, M. N., Akkus, B., Bostan, M., Gürdal, G., Ertürk, S., Balabanski, D., Rainovski, G., Danchev, M., Dragomirova, R., Minkova, A., Vyvey, K., Beetge, R., Fearick, R. W., Mabala, G. K., Roux, D. G., Whittaker, W., Babu, B. R. S., Lawrie, J. J., Naguleswaran, S., Newman, R. T., Rigolet, C., Pilcher, J. V., Smith, F. D., and Sharpey-Shafer, J. F.

Published
2006
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7. Neutron detection and gamma-ray suppression using artificial neural networks with the liquid scintillators BC-501A and BC-537

Author

Söderström, Pär-Anders, Jaworski, G., Dobon, J. J. Valiente, Nyberg, Johan, Agramunt, J., de Angelis, G., Carturan, S., Egea, J., Erduran, M. N., Ertürk, S., de France, G., Gadea, A., Goasduff, A., Gonzalez, V, Hadynska-Klek, K., Hüyük, T., Modamio, V, Moszynski, M., Di Nitto, A., Palacz, M., Pietralla, N., Sanchis, E., Testov, D., Triossi, A., Wadsworth, R., Söderström, Pär-Anders, Jaworski, G., Dobon, J. J. Valiente, Nyberg, Johan, Agramunt, J., de Angelis, G., Carturan, S., Egea, J., Erduran, M. N., Ertürk, S., de France, G., Gadea, A., Goasduff, A., Gonzalez, V, Hadynska-Klek, K., Hüyük, T., Modamio, V, Moszynski, M., Di Nitto, A., Palacz, M., Pietralla, N., Sanchis, E., Testov, D., Triossi, A., and Wadsworth, R.

Abstract

In this work we present a comparison between the two liquid scintillators BC-501A and BC-537 in terms of their performance regarding the pulse-shape discrimination between neutrons and gamma rays. Special emphasis is put on the application of artificial neural networks. The results show a systematically higher gamma-ray rejection ratio for BC-501A compared to BC-537 applying the commonly used charge comparison method. Using the artificial neural network approach the discrimination quality was improved to more than 95% rejection efficiency of gamma rays over the energy range 150 to 1000 keV for both BC-501A and BC-537. However, due to the larger light output of BC-501A compared to BC-537, neutrons could be identified in BC-501A using artificial neural networks down to a recoil proton energy of 800 keV compared to a recoil deuteron energy of 1200 keV for BC-537. We conclude that using artificial neural networks it is possible to obtain the same gamma-ray rejection quality from both BC-501A and BC-537 for neutrons above a low-energy threshold. This threshold is, however, lower for BC-501A, which is important for nuclear structure spectroscopy experiments of rare reaction channels where low-energy interactions dominates.

Published
2019
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9. Pulse Pile-Up Identification And Reconstruction For Liquid Scintillator Based Neutron Detectors

Author

Luo, X. L., Modamio, V., Nyberg, J., Valiente-Dobon, J. J., Nishada, Q., de Angelis, G., Agramunt, J., Egea, F. J., Erduran, M. N., Erturk, S., de France, G., Gadea, A., Gonzalez, V., Goasduff, A., Huyuk, T., Jaworski, G., Moszynski, M., Di Nitto, A., Palacz, M., and Soederstroem, P. -A.

Abstract

The issue of pulse pile-up is frequently encountered in nuclear experiments involving high counting rates, which will distort the pulse shapes and the energy spectra. A digital method of off-line processing of pile-up pulses is presented. The pile-up pulses were firstly identified by detecting the downward-going zero-crossings in the first-order derivative of the original signal, and then the constituent pulses were reconstructed based on comparing the pile-up pulse with four models that are generated by combining pairs of neutron and.. standard pulses together with a controllable time interval. The accuracy of this method in resolving the pile-up events was investigated as a function of the time interval between two pulses constituting a pile-up event. The obtained results show that the method is capable of disentangling two pulses with a time interval among them down to 20 ns, as well as classifying them as neutrons or gamma rays. Furthermore, the error of reconstructing pile-up pulses could be kept below 6% when successive peaks were separated by more than 50 ns. By applying the method in a high counting rate of pile-up events measurement of the NEutron Detector Array (NEDA), it was empirically found that this method can reconstruct the pile-up pulses and perform neutron-gamma discrimination quite accurately. It can also significantly correct the distorted pulse height spectrum due to pile-up events.

Published
2018

11. Digital Front-End Electronics For The Neutron Detector Neda

Author

Egea Canet, F. J., Houarner, C., Boujrad, A., Gonzalez, V., Tripon, M., Jastrzab, M., Triossi, A., de France, G., Gadea, A., Valiente-Dobon, J. J., Barrientos, D., Sanchis, E., Blaizot, M., Bourgault, P., de Angelis, G., Erduran, M. N., Erturk, S., Hueyuek, T., Jaworski, G., and Luo, X. L.

Subjects
Physics::Instrumentation and Detectors
Abstract

This paper presents the design of the NEDA (Neutron Detector Array) electronics, a first attempt to involve the use of digital electronics in large neutron detector arrays. Starting from the front-end modules attached to the PMTs (PhotoMultiplier Tubes) and ending up with the data processing workstations, a comprehensive electronic system capable of dealing with the acquisition and pre-processing of the neutron array is detailed. Among the electronic modules required, we emphasize the front-end analog processing, the digitalization, digital pre-processing and communications firmware, as well as the integration of the GTS (Global Trigger and Synchronization) system, already used successfully in AGATA (Advanced Gamma Tracking Array). The NEDA array will be available for measurements in 2016.

Published
2015

12. Shell evolution beyond N=40: Cu 69,71,73

Author

Sahin, E., Doncel, M., Sieja, K., De Angelis, G., Gadea, A., Quintana, B., Görgen, A., Modamio, V., Mengoni, Daniele, Valiente Dobón, J. J., John, P. R., Albers, M., Bazzacco, D., Benzoni, G., Birkenbach, B., Cederwall, B., Clément, E., Curien, D., Corradi, L., Désesquelles, P., Dewald, A., Didierjean, F., Duchêne, G., Eberth, J., Erduran, M. N., Farnea, E., Fioretto, E., De France, G., Fransen, C., Gernhäuser, R., Gottardo, A., Hackstein, M., Hagen, T., Hernández Prieto, A., Hess, H., Hüyük, T., Jungclaus, A., Klupp, S., Korten, W., Kusoglu, A., Lenzi, SILVIA MONICA, Ljungvall, J., Louchart, C., Lunardi, Santo, Menegazzo, R., Michelagnoli, C., Mijatović, T., Million, B., Molini, P., Montagnoli, Giovanna, Montanari, D., Möller, O., Napoli, D. R., Obertelli, A., Orlandi, R., Pollarolo, G., Pullia, A., Recchia, Francesco, Reiter, P., Rosso, D., Rother, W., Salsac, M. D., Scarlassara, F., Schlarb, M., Siem, S., Singh, P. P., Söderström, P. A., Stefanini, A. M., Stézowski, O., Sulignano, B., Szilner, S., Theisen, C., C. A., Ur, and Yalcinkaya, M.

Published
2015

13. A New Front-End High-Resolution Sampling Board For The New-Generation Electronics Of Exogam2 And Neda Detectors

Author

Egea Canet, F. J., Gonzalez, V., Tripon, M., Jastrzab, M., Triossi, A., Gadea, A., de France, G., Valiente-Dobon, J. J., Barrientos, D., Sanchis, E., Boujrad, A., Houarner, C., Blaizot, M., Bourgault, P., de Angelis, G., Erduran, M. N., Erturk, S., Hueyuek, T., Jaworski, G., and Luo, X. L.

Subjects
Physics::Instrumentation and Detectors
Abstract

This paper presents the final design and results of the FADC Mezzanine for the EXOGAM (EXOtic GAMma array spectrometer) and NEDA (Neutron Detector Array) detectors. The measurements performed include those of studying the effective number of bits, the energy resolution using HP-Ge detectors, as well as timing histograms and discrimination performance. Finally, the conclusion shows how a common digitizing device has been integrated in the experimental environment of two very different detectors which combine both low-noise acquisition and fast sampling rates. Not only the integration fulfilled the expected specifications on both systems, but it also showed how a study of synergy between detectors could lead to the reduction of resources and time by applying a common strategy.

Published
2015

14. Structure of the N=50 As, Ge, Ga nuclei

Author

Sahin, Eda, de Angelis, G., Duchene, G., Faul, T., Gadea, A., Lisetskiy, A. F., Ackermann, D., Algora, A., Aydin, S., Azaiez, F., Bazzacco, D., Benzoni, G., Bostan, M., Byrski, T., Čeliković, Igor T., Chapman, R., Corradi, L., Courtin, S., Curien, D., Pramanik, U. Datta, Didierjean, F., Dorvaux, O., Erduran, M. N., Erturk, S., Farnea, E., Fioretto, E., de France, Gilles, Franchoo, S., Gall, B., Gottardo, Andrea, Guiot, B., Haas, F., Ibrahim, F., Ince, E., Khouaja, A., Kusoglu, A., La Rana, G., Labiche, M., Lebhertz, D., Lenzi, S., Leoni, S., Lunardi, S., Mason, P., Mengoni, D., Michelagnoli, Caterina, Modamio, V., Montagnoli, G., Montanari, D., Moro, R., Mouginot, B., Napoli, Daniel R., O'Donnell, D., Oliveira, J. R. B., Ollier, J., Orlandi, R., Pollarolo, G., Recchia, Francesco, Robin, J., Salsac, Marie Delphine, Scarlassara, F., Singh, R. P., Silvestri, R., Smith, J. F., Stefan, I., Stefanini, A. M., Subotić, Krunoslav M., Szilner, S., Tonev, D., Torres, D. A., Trotta, M., Ujić, Predrag, Ur, C., Valiente-Dobon, Jose Javier, Verney, D., Yalcinkaya, M., Wady, P. T., Wiedemann, K. T., Zuber, K., La Rana, Giovanni -- 0000-0003-2814-4113, Algora, Alejandro -- 0000-0002-5199-1794, O'Donnell, David -- 0000-0002-4710-3803, Ince, Elif -- 0000-0003-4821-5441, Napoli, Daniel Ricardo -- 0000-0002-8154-6958, Montanari, Daniele -- 0000-0002-1980-7686, Tonev, Dimitar -- 0000-0003-4431-6157, Gadea, Andres -- 0000-0002-4233-1970, Ujic, Predrag -- 0000-0002-2577-5633, Oliveira, Jose Roberto -- 0000-0003-1362-7382, Datta, Ushasi -- 0000-0001-8192-1407, benzoni, giovanna -- 0000-0002-7938-0338, Scarlassara, Fernando -- 0000-0002-4663-8216, GOTTARDO, Andrea -- 0000-0002-0390-5767, Recchia, Francesco -- 0000-0002-8428-0112, Ackermann, Dieter -- 0000-0001-6284-1516, de France, Gilles -- 0000-0002-7439-1759, Celikovic, Igor -- 0000-0002-5642-4393, Montagnoli, Giovanna -- 0000-0002-8944-1456, Sahin, Eda -- 0000-0003-0683-5140, Verney, David -- 0000-0001-7924-2851, MOUGINOT, Baptiste -- 0000-0003-0957-6666, and [Sahin, E. -- de Angelis, G. -- Gadea, A. -- Corradi, L. -- Fioretto, E. -- Gottardo, A. -- Guiot, B. -- Modamio, V. -- Napoli, D. R. -- Silvestri, R. -- Stefanini, A. M. -- Valiente-Dobon, J. J.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy -- [Sahin, E.] Univ Oslo, Dept Phys, NO-0316 Oslo, Norway -- [Duchene, G. -- Faul, T. -- Byrski, T. -- Courtin, S. -- Curien, D. -- Dorvaux, O. -- Gall, B. -- Haas, F. -- Khouaja, A. -- Lebhertz, D. -- Robin, J.] CNRS, IN2P3, IPHC, Strasbourg, France -- [Duchene, G. -- Faul, T. -- Byrski, T. -- Courtin, S. -- Curien, D. -- Dorvaux, O. -- Gall, B. -- Haas, F. -- Khouaja, A. -- Lebhertz, D.] Univ Strasbourg, Strasbourg, France -- [Gadea, A. -- Algora, A.] Univ Valencia, CSIC, Inst Fis Corpuscular, Valencia, Spain -- [Lisetskiy, A. F.] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA -- [Ackermann, D.] Helmholtzzentrum Schwerionenforsch GSI, Darmstadt, Germany -- [Algora, A.] Inst Nucl Res, H-4001 Debrecen, Hungary -- [Aydin, S.] Univ Aksaray, Dept Phys, Aksaray, Turkey -- [Aydin, S. -- Bazzacco, D. -- Farnea, E. -- Gottardo, A. -- Lenzi, S. -- Lunardi, S. -- Mason, P. -- Mengoni, D. -- Michelagnoli, C. -- Montagnoli, G. -- Montanari, D. -- Recchia, F. -- Scarlassara, F. -- Ur, C.] Univ Padua, Dipartimento Fis, Padua, Italy -- [Aydin, S. -- Bazzacco, D. -- Farnea, E. -- Gottardo, A. -- Lenzi, S. -- Lunardi, S. -- Mason, P. -- Mengoni, D. -- Michelagnoli, C. -- Montagnoli, G. -- Montanari, D. -- Recchia, F. -- Scarlassara, F. -- Ur, C.] Ist Nazl Fis Nucl, Sez Padova, Padua, Italy -- [Azaiez, F. -- Franchoo, S. -- Ibrahim, F. -- Mouginot, B. -- Stefan, I. -- Verney, D.] Univ Paris 11, Orsay, France -- [Azaiez, F. -- Franchoo, S. -- Ibrahim, F. -- Mouginot, B. -- Stefan, I. -- Verney, D.] CNRS, IPNO, IN2P3, F-91405 Orsay, France -- [Benzoni, G. -- Leoni, S.] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy -- [Benzoni, G. -- Leoni, S.] Univ Milan, Dipartimento Fis, Milan, Italy -- [Bostan, M. -- Kusoglu, A. -- Yalcinkaya, M.] Istanbul Univ, Dept Phys, Istanbul, Turkey -- [Celikovic, I. -- Subotic, K. -- Ujic, P.] Vinca Inst Nucl Sci, Belgrade, Serbia -- [Chapman, R. -- Mengoni, D. -- O'Donnell, D. -- Ollier, J. -- Orlandi, R. -- Smith, J. F. -- Torres, D. A. -- Wady, P. T.] Univ W Scotland, Paisley, Renfrew, Scotland -- [Pramanik, U. Datta] Saha Inst Nucl Phys, Kolkata, India -- [Didierjean, F.] Inst Pluridisciplinaire Hubert Curien, Strasbourg, France -- [Erduran, M. N.] Istanbul Sabahattin Zaim Univ, Istanbul, Turkey -- [Erturk, S.] Nigde Univ, Dept Phys, Nigde, Turkey -- [de France, G.] GANIL, F-14021 Caen, France -- [Ince, E.] Istanbul Univ, Hasan Ali Yucel Educ Fac, Istanbul, Turkey -- [La Rana, G. -- Moro, R. -- Trotta, M.] Univ Naples Federico II, Dipartimento Sci Fis, Naples, Italy -- [La Rana, G. -- Moro, R. -- Trotta, M.] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy -- [Labiche, M.] SERC, Daresbury Lab, STFc, Warrington WA4 4AD, Cheshire, England -- [Oliveira, J. R. B. -- Wiedemann, K. T.] Univ Sao Paulo, Sao Paulo, Brazil -- [Pollarolo, G.] Univ Turin, Dipartimento Fis Teor, Turin, Italy -- [Salsac, M. -D.] CEA Saclay, IRFU SPhN, Gif Sur Yvette, France -- [Singh, R. P.] Interuniv Accelerator Ctr, New Delhi 67, India -- [Szilner, S.] Rudjer Boskovic Inst, HR-10001 Zagreb, Croatia -- [Tonev, D.] BAS, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria -- [Zuber, K.] Inst Nucl Phys, Krakow, Poland

Subjects
gamma gamma-coin, J, pi calculated levels, Nuclear Theory, NUCLEAR REACTIONS U-238(Se-82, Ga-81), (Se-82, Ge-82), (Se-82, As-83), E=515 MeV, (fragment)gamma-coin, Ge Compton-suppressed detectors of CLARA array, thin and thick target, gamma after deexcitation using Ge Compton-suppressed detectors of CLARA array, NUCLEAR REACTIONS U-238(Se-82, Ga-81), (Se-82, Ge-82), (Se-82, As-83), deduced sigma(theta), levels, J, pi, J, pi using shell model, reaction fragments, gamma after deexcitation, levels, measured E-gamma, I gamma (theta), gamma gamma-coin, reaction fragments, measured E gamma, E=515 MeV, calculated levels, J, pi using shell model, (fragment)gamma-coin using PRISMA magnetic spectrometer, PRISMA magnetic spectrometer, deduced sigma(theta), I-gamma (theta)
Abstract

WOS: 000310091000001, The level structures of the N = 50 As-83, Ge-82, and Ga-81 isotones have been investigated by means of multi-nucleon transfer reactions. A first experiment was performed with the CLARA PRISMA setup to identify these nuclei. A second experiment was carried out with the GASP array in order to deduce the gamma-ray coincidence information. The results obtained on the high-spin states of such nuclei are used to test the stability of the N = 50 shell closure in the region of Ni-78 (Z = 28). The comparison of the experimental level schemes with the shell-model calculations yields an N = 50 energy gap value of 4.7(3) MeV at Z = 28. This value, in a good agreement with the prediction of the finite-range liquid-drop model as well as with the recent large-scale shell model calculations, does not support a weakening of the N = 50 shell gap down to Z = 28. (c) 2012 Elsevier B.V. All rights reserved., NSF [PHY0244389, PHY0555396]; European Commission within the Sixth Framework Programme through I3-EURONS [RII3-CT-2004-506065]; DGF (Germany) [DE 1516/-1]; Science and Technology Facilities Council [ST/G000689/1 NuSTAR, ST/F004052/1, ST/G000689/1, ST/J000108/1], We thank O. Sorlin for the useful discussions and the accelerator crews of LNL for the excellent support. A.F.L. acknowledges partial support of this work from NSF grants PHY0244389 and PHY0555396. This work has been partially supported by the European Commission within the Sixth Framework Programme through I3-EURONS (contract No. RII3-CT-2004-506065) and the DGF (Germany under contract No. DE 1516/-1).

Published
2012

15. THE PARIS PROJECT

Author

Maj, A., Azaiez, F., Jenkins, D., Schmitt, C., Stezowski, O., Wieleczko, J. P., Balabanski, D., Bednarczyk, P., Brambilla, S., Camera, F., Chakrabarty, D. R., Chełstowska, M., Ciemała, M., Courtin, S., Csatlos, M., Dombradi, Z., Dorvaux, O., Dudek, J., Erduran, M. N., Ertürk, S., Fornal, B., Franchoo, S., Georgiev, G., Gulyás, J., Harissopoulos, S., Joshi, P., Kicińska-Habior, M., Maria Kmiecik, Krasznahorkay, A., Kumar, G. A., Kumar, S., Labiche, M., Mazumdar, I., Mazurek, K., Meczyński, W., Myalski, S., Nanal, V., Napiorkowski, P., Peyre, J., Pouthas, J., Roberts, O., Rousseau, M., Scarpaci, J. A., Smith, A., Stefan, I., Strachan, J., Watts, D., Ziebliński, M., DUDEK, Jerzy -- 0000-0001-5864-6339, Roberts, Oliver -- 0000-0002-7150-9061, Zieblinski, Miroslaw -- 0000-0002-8693-7317, Fornal, Bogdan -- 0000-0002-1142-8067, Mazurek, Katarzyna -- 0000-0002-5589-1483, Harissopulos, Sotirios -- 0000-0003-4022-7595, Kmiecik, Maria -- 0000-0003-2019-2399, Georgiev, Georgi -- 0000-0003-1467-1764, Kicinska-Habior, Marta -- 0000-0003-1736-7565, nanal, Vandana -- 0000-0002-2122-5191, Ciemala, Michal -- 0000-0001-5328-720X, Bednarczyk, Piotr -- 0000-0002-5699-5292, [Maj, A. -- Bednarczyk, P. -- Chelstowska, M. -- Ciemala, M. -- Fornal, B. -- Kmiecik, M. -- Mazurek, K. -- Meczynski, W. -- Myalski, S. -- Zieblinski, M.] Polish Acad Sci, H Niewodniczanski Inst Nucl Phys, Krakow, Poland -- [Azaiez, F. -- Franchoo, S. -- Peyre, J. -- Pouthas, J. -- Scarpaci, J. A. -- Stefan, I.] CNRS, IPNO, IN2P3, F-91405 Orsay, France -- [Jenkins, D. -- Joshi, P.] Univ York, York YO10 5DD, N Yorkshire, England -- [Schmitt, Ch. -- Wieleczko, J. P.] CEA, GANIL, Caen, France -- [Schmitt, Ch. -- Wieleczko, J. P.] CNRS, IN2P3, Caen, France -- [Stezowski, O.] CNRS, IN2P3, Lyon, France -- [Balabanski, D.] Inst Nucl Energy Res, Sofia, Bulgaria -- [Brambilla, S. -- Camera, F.] Univ Milan, Dipartimento Fis, Milan, Italy -- [Brambilla, S. -- Camera, F.] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy -- [Chakrabarty, D. R. -- Kumar, Suresh] Bhabha Atom Res Ctr, Div Nucl Phys, Bombay 400085, Maharashtra, India -- [Courtin, S. -- Dorvaux, O. -- Dudek, J. -- Rousseau, M.] CNRS, IPHC, IN2P3, Strasbourg, France -- [Csatlos, M. -- Dombradi, Z. -- Gulyas, J. -- Krasznahorkay, A.] Hungarian Acad Sci, Inst Nucl Res, ATOMKI, Debrecen, Hungary -- [Erduran, M. N.] Istanbul Univ, Istanbul, Turkey -- [Ertuerk, S.] Nigde Univ, Nigde, Turkey -- [Georgiev, G.] CNRS, CSNSM, IN2P3, F-91405 Orsay, France -- [Harissopoulos, S.] Democritos Natl Res Ctr Phys Sci, Athens, Greece -- [Kicinskia-Habior, M. -- Napiorkowski, P.] Univ Warsaw, Heavy Ion Lab, Warsaw, Poland -- [Labiche, M. -- Strachan, J.] STFC Daresbury, Daresbury, England -- [Kumar, G. Anil -- Mazumdar, I. -- Nanal, V.] Tata Inst Fundamental Res, Dept Nucl & Atom Phys, Bombay 400005, Maharashtra, India -- [Smith, A.] Univ Manchester, Manchester M13 9PL, Lancs, England -- [Watts, D.] Univ Edinburgh, Dept Phys, Edinburgh EH8 9YL, Midlothian, Scotland, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut Pluridisciplinaire Hubert Curien (IPHC), Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Physics::Instrumentation and Detectors, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 29.40.Mc, 29.40.Vj
Abstract

43rd Zakopane Conference on Nuclear Physics -- SEP 01-07, 2008 -- Zakopane, POLAND, WOS: 000264436200022, The PARIS project is ail initiative to develop and build a high-efficiency gamma-calorimeter principally for Use at SPIRAL2. It is intended to comprise a double shell of scintillators and use the novel scintillator material LaBr3(Ce), which promises a step-change in energy and time resolutions over what is achievable using conventional scintillators. The array could be used in a stand-alone mode, in conjunction with an inner particle detection system, or with high-purity germanium arrays. Its potential physics opportunities as well as initial designs and simulations will be discussed.

Published
2009

16. High-spin states in (191,193)Au and (192)Pt: Evidence for oblate deformation and triaxial shapes

Author

Oktem, Y., Balabanski, D. L., Akkus, B., Beausang, W., Bostan, M., Cakirli, R. B., Casten, R. F., Danchev, M., Djongolov, M., Erduran, M. N., Erturk, S., Gladniski, K. A., Gurdal, G., Goon, J. Tm., Hartley, D. J., Hecht, A. A., Krucken, R., Nikolov, N., Novak, J. R., Rainovski, G., Riedinger, L. L., Yigitoglu, I., Zamfir, N. V., Zeidan, O., Rainovski, Georgi -- 0000-0002-1729-0249, Kruecken, Reiner -- 0000-0002-2755-8042, and [Oktem, Y. -- Akkus, B. -- Bostan, M. -- Cakirli, R. B. -- Erduran, M. N.] Univ Istanbul, Dept Phys, TR-34459 Istanbul, Turkey -- [Balabanski, D. L.] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, BG-1784 Sofia, Bulgaria -- [Beausang, W. -- Casten, R. F. -- Hecht, A. A. -- Krucken, R. -- Novak, J. R. -- Zamfir, N. V.] Yale Univ, Wright Nucl Struct Lab, New Haven, CT 06520 USA -- [Beausang, W.] Univ Richmond, Dept Phys, Richmond, VA 23173 USA -- [Danchev, M. -- Djongolov, M. -- Hartley, D. J. -- Nikolov, N. -- Riedinger, L. L. -- Zeidan, O.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA -- [Erturk, S.] Nigde Univ, Dept Phys, TR-51200 Nigde, Turkey -- [Gladniski, K. A. -- Nikolov, N. -- Rainovski, G.] St Kliment Ohridski Univ Sofia, Fac Phys, BG-1164 Sofia, Bulgaria -- [Gurdal, G.] Clark Univ, Worcester, MA 01610 USA -- [Goon, J. Tm.] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA -- [Hartley, D. J.] USN Acad, Dept Phys, Annapolis, MD 21402 USA -- [Hecht, A. A.] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA -- [Yigitoglu, I.] Istanbul Univ, Hasan Ali Yucel Fac Educ, TR-34470 Istanbul, Turkey -- [Zamfir, N. V.] Natl Inst Phys & Nucl Engn, Bucharest, Romania

Abstract

WOS: 000250620900030, High-spin states of (191,193)Au and (192)Pt have been populated in the (186)W((11)B, xn) and (186)W((11)B, p4n) reactions, respectively, at a beam energy of 68 MeV and their gamma decay was studied using the YRAST Ball detector array at the Wright Nuclear Structure Laboratory at Yale University. The level scheme of (193)Au has been extended up to I(pi)=55/2(+). New transitions were observed also in (191)Au and (192)Pt. Particle-plus-Triaxial-Rotor (PTR) and Total Routhian Surface (TRS) calculations were performed to determine the equilibrium deformations of the Au isotopes. The predictions for oblate deformations in these nuclei are in agreement with the experimental data. Development of nonaxial shapes is discussed within the framework of the PTR model.

Published
2007

17. Shell evolution beyond N=40 : Cu-69,Cu-71,Cu-73

Author

Sahin, E., Doncel, M., Sieja, K., de Angelis, G., Gadea, A., Quintana, B., Gorgen, A., Modamio, V., Mengoni, D., Valiente-Dobon, J. J., John, P. R., Albers, M., Bazzacco, D., Benzoni, G., Birkenbach, B., Cederwall, B., Clement, E., Curien, D., Corradi, L., Desesquelles, P., Dewald, A., Didierjean, F., Duchene, G., Eberth, J., Erduran, M. N., Farnea, E., Fioretto, E., de France, G., Fransen, C., Gernhaeuser, R., Gottardo, A., Hackstein, M., Hagen, T., Hernandez-Prieto, A., Hess, H., Hueyuek, T., Jungclaus, A., Klupp, S., Korten, W., Kusoglu, A., Lenzi, S. M., Ljungvall, J., Louchart, C., Lunardi, S., Menegazzo, R., Michelagnoli, C., Mijatovic, T., Million, B., Molini, P., Montagnoli, G., Montanari, D., Moeller, O., Napoli, D. R., Obertelli, A., Orlandi, R., Pollarolo, G., Pullia, A., Recchia, F., Reiter, P., Rosso, D., Rother, W., Salsac, M. -D, Scarlassara, F., Schlarb, M., Siem, S., Singh, Pushpendra P., Söderström, P. -A, Stefanini, A. M., Stezowski, O., Sulignano, B., Szilner, S., Theisen, Ch, Ur, C. A., Yalcinkaya, M., Sahin, E., Doncel, M., Sieja, K., de Angelis, G., Gadea, A., Quintana, B., Gorgen, A., Modamio, V., Mengoni, D., Valiente-Dobon, J. J., John, P. R., Albers, M., Bazzacco, D., Benzoni, G., Birkenbach, B., Cederwall, B., Clement, E., Curien, D., Corradi, L., Desesquelles, P., Dewald, A., Didierjean, F., Duchene, G., Eberth, J., Erduran, M. N., Farnea, E., Fioretto, E., de France, G., Fransen, C., Gernhaeuser, R., Gottardo, A., Hackstein, M., Hagen, T., Hernandez-Prieto, A., Hess, H., Hueyuek, T., Jungclaus, A., Klupp, S., Korten, W., Kusoglu, A., Lenzi, S. M., Ljungvall, J., Louchart, C., Lunardi, S., Menegazzo, R., Michelagnoli, C., Mijatovic, T., Million, B., Molini, P., Montagnoli, G., Montanari, D., Moeller, O., Napoli, D. R., Obertelli, A., Orlandi, R., Pollarolo, G., Pullia, A., Recchia, F., Reiter, P., Rosso, D., Rother, W., Salsac, M. -D, Scarlassara, F., Schlarb, M., Siem, S., Singh, Pushpendra P., Söderström, P. -A, Stefanini, A. M., Stezowski, O., Sulignano, B., Szilner, S., Theisen, Ch, Ur, C. A., and Yalcinkaya, M.

Abstract

The level structure of the neutron-rich Cu-69, Cu-71, and Cu-73 isotopes has been investigated by means of multinucleon transfer reactions. The experiment was performed at Laboratori Nazionali di Legnaro using the AGATA Demonstrator array coupled to the PRISMA magnetic spectrometer. Lifetimes of excited states in Cu nuclei were measured with the recoil-distance Doppler-shift method. The resulting electromagnetic matrix elements for transitions from excited states in Cu-69,Cu-71,Cu-73 nuclei are used to assess the collective or single-particle character of these states. The results are compared with predictions of large-scale shell-model calculations, giving further insight into the evolution of the proton pf shell as neutrons fill the 1g(9/2) orbital.

Published
2015
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18. Digital pulse-timing technique for the neutron detector array NEDA

Author

Modamio, V., Valiente-Dobon, J. J., Jaworski, G., Hueyuek, T., Triossi, A., Egea, J., Di Nitto, A., Soederstroem, P. -A, Agramunt Ros, J., de Angelis, G., de France, G., Erduran, M. N., Erturk, S., Gadea, A., Gonzalez, V., Kownacki, J., Moszynski, M., Nyberg, Johan, Palacz, M., Sanchis, E., Wadsworthm, R., Modamio, V., Valiente-Dobon, J. J., Jaworski, G., Hueyuek, T., Triossi, A., Egea, J., Di Nitto, A., Soederstroem, P. -A, Agramunt Ros, J., de Angelis, G., de France, G., Erduran, M. N., Erturk, S., Gadea, A., Gonzalez, V., Kownacki, J., Moszynski, M., Nyberg, Johan, Palacz, M., Sanchis, E., and Wadsworthm, R.

Abstract

A new digital pulse-timing algorithm, to be used with the future neutron detector array NEDA, has been developed and tested. The time resolution of four 5 in diameter photomultiplier tubes (XP4512, R4144, R11833-100, and ET9390-kb), coupled to a cylindrical 5 in by 5 in BC501A liquict scintillator detector was measured by employing digital sampling electronics and a constant fraction discriminator (CFD) algorithm. The zero crossing of the CM algorithm was obtained with a cubic spline interpolation, which was continuous up to the second derivative. The performance of the algorithm was studied at sampling rates of 500 MS/s and 200 MS/s. The time resolution obtained with the digital electronics was compared to the values acquired with a standard analog CFD. The result of this comparison shows that the time resolution from the analog and the digital measurements at 500 MS/s and at 200 MS/s are within 15% for all the tested photomultiplier tubes.

Published
2015
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19. Lifetime measurements in neutron-rich 63,65Co isotopes using the AGATA demonstrator

Author

Modamio, V., Valiente Dobón, J. J., Lunardi, S., Lenzi, S. M., Gadea, A., Mengoni, D., Bazzacco, D., Algora, A., Bednarczyk, P., Benzoni, G., Birkenbach, B., Bracco, A., Bruyneel, B., Bürger, A., Chavas, J., Corradi, L., Crespi, F. C. L., de Angelis, G., Désesquelles, P., de France, G., Depalo, R., Dewald, A., Doncel, M., Erduran, M. N., Farnea, E., Fioretto, E., Fransen, C. h., Geibel, K., Gottardo, A., Görgen, A., Habermann, T., Hackstein, M., Hess, H., Hüyük, T., John, P. R., Jolie, J., Judson, D., Jungclaus, A., Karkour, N., Kempley, R., Leoni, S., Melon, B., Menegazzo, R., Michelagnoli, C., Mijatović, T., Million, B., Möller, O., Montagnoli, G., Montanari, D., Nannini, A., Napoli, D. R., Podolyak, Z. s., Pollarolo, Giovanni, Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rosso, D., Rother, W., Sahin, E., Salsac, M. D., Scarlassara, F., Sieja, K., Söderström, P. A., Stefanini, A. M., Stezowski, O., Szilner, S., Theisen, C. h., Travers, B., C. A., Ur, Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, CSNSM SNO, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Grand Accélérateur National d'Ions Lourds (GANIL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), CSNSM ELEC, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), AGATA, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
Physics::Accelerator Physics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract

The 64Ni beam, with an energy of 460 MeV, was delivered by the LNL tandem-ALPI accelerator complex.; Lifetimes of the low-lying (11/2−) states in 63,65Co have been measured employing the recoil distance doppler shift method (RDDS) with the AGATA γ -ray array and the PRISMA mass spectrometer. These nuclei were populated via a multinucleon transfer reaction by bombarding a 238U target with a beam of 64Ni. The experimental B(E2) reduced transition probabilities for 63,65Co are well reproduced by large-scale shell-model calculations that predict a constant trend of the B(E2) values up to the N = 40 67Co isotope.

Published
2013

20. Collective nature of low-lying excitations in Zn-70,Zn-72,Zn-74 from lifetime measurements using the AGATA spectrometer demonstrator

Author

Louchart, C., Obertelli, A., Goergen, A., Wolfram KORTEN, Bazzacco, D., Birkenbach, B., Bruyneel, B., Clement, E., Coleman-Smith, P. J., Corradi, L., Curien, D., Angelis, G., France, G., Delaroche, J. P., Dewald, A., Didierjean, F., Doncel, M., Duchene, G., Eberth, J., Erduran, M. N., Farnea, E., Finck, C., Fioretto, E., Fransen, C., Gadea, A., Girod, M., Gottardo, A., Grebosz, J., Habermann, T., Hackstein, M., Huyuk, T., Jolie, J., Judson, D., Jungclaus, A., Karkour, N., Klupp, S., Kruecken, R., Kusoglu, A., Lenzi, S. M., Libert, J., Ljungvall, J., Lunardi, S., Maron, G., Menegazzo, R., Mengoni, D., Michelagnoli, C., Million, B., Molini, P., Moeller, O., Montagnoli, G., Montanari, D., Napoli, D. R., Orlandi, R., Pollarolo, G., Prieto, A., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rosso, D., Rother, W., Sahin, E., Salsac, M. D., Scarlassara, F., Schlarb, M., Siem, S., Singh, P. P., Soderstrom, P. A., Stefanini, A. M., Stezowski, O., Sulignano, B., Szilner, S., Theisen, Ch, Ur, C. A., Valiente-Dobon, J. J., and Zielinska, M.

Subjects
Subatomär fysik, Subatomic Physics
Abstract

WOS: 000318527400007 Background: Neutron-rich nuclei with protons in the fp shell show an onset of collectivity around N=40. Spectroscopic information is required to understand the underlying mechanism and to determine the relevant terms of the nucleon-nucleon interaction that are responsible for the evolution of the shell structure in this mass region. Methods: We report on the lifetime measurement of the first 2(+) and 4(+) states in Zn-70,Zn-72 ,Zn-74 and the first 6(+) state in Zn-72 using the recoil distance Doppler shift method. The experiment was carried out at the INFN Laboratory of Legnaro with the AGATA demonstrator, first phase of the Advanced Gamma Tracking Array of highly segmented, high-purity germanium detectors coupled to the PRISMA magnetic spectrometer. The excited states of the nuclei of interest were populated in the deep inelastic scattering of a Ge-76 beam impinging on a U-238 target. Results: The maximum of collectivity along the chain of Zn isotopes is observed for Zn-72 at N=42. An unexpectedly long lifetime of 20(-5.2)(+1.8) ps was measured for the 4(+) state in Zn-74. Conclusions: Our results lead to small values of the B(E2;4(1)(+) -> 21(+))/B(E2;2(1)(+->)0(1)(+)) ratio for Zn-72,Zn-74, suggesting a significant noncollective contribution to these excitations. These experimental results are not reproduced by state-of-the-art microscopic models and call for lifetime measurements beyond the first 2(+) state in heavy zinc and nickel isotopes. European Union Seventh Framework Program FP7/2007-2013 [DPN/N190/AGATA/2009]; Polish MNiSW [DPN/N190/AGATA/2009]; Spanish Ministerio de Ciencia e Innovacion [FPA2011-29854-C04]; BMBF [05P12RDFN8, 06DA9040I]; [262010 ENSAR]; Science and Technology Facilities Council [ST/F004052/1, ST/J000108/1] The authors are grateful to the ALPI accelerator team for quality of the beam delivered during the experiment. B. Lommel and J. Steiner from the GSI are acknowledged for their help in preparing the Uranium target and the opportunity to use the GSI target laboratory. The authors would like to thank F. Nowacki and K. Sieja for enlightening discussions and their suggestions to improve the manuscript. This work has been partly financed by the European Union Seventh Framework Program FP7/2007-2013 under Grant Agreement No. 262010 ENSAR, the Polish MNiSW under Grant No. DPN/N190/AGATA/2009, the Spanish Ministerio de Cienciae Innovacion under Contract No. FPA2011-29854-C04, and the BMBF under Grant Nos. 05P12RDFN8 and 06DA9040I.

Published
2013

21. Collective nature of low-lying excitations in ^{70,72,74}Zn from lifetime measurements using the AGATA spectrometer demonstrator

Author

Louchart, C., Obertelli, A., Görgen, A., Korten, W., Bazzacco, D., Birkenbach, B., Bruyneel, B., Clément, E., Coleman Smith, P. J., Corradi, L., Curien, D., de Angelis, G., de France, G., Delaroche, J. P., Dewald, A., Didierjean, F., Doncel, M., Duchêne, G., Eberth, J., Erduran, M. N., Farnea, E., Finck, C., Fioretto, E., Fransen, C., Gadea, A., Girod, M., Gottardo, A., Grebosz, J., Habermann, T., Hackstein, M., Huyuk, T., Jolie, J., Judson, D., Jungclaus, A., Karkour, N., Klupp, S., Krücken, R., Kusoglu, A., Lenzi, S. M., Libert, J., Ljungvall, J., Lunardi, S., Maron, G., Menegazzo, R., Mengoni, D., Michelagnoli, C., Million, B., Molini, P., Möller, O., Montagnoli, G., Montanari, D., Napoli, D. R., Orlandi, R., Pollarolo, Giovanni, Prieto, A., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rosso, D., Rother, W., Sahin, E., Salsac, M. D., Scarlassara, F., Schlarb, M., Siem, S., Singh, P. P., Söderström, P. A., Stefanini, A. M., Stézowski, O., Sulignano, B., Szilner, S., Theisen, C. h., C. A., Ur, Valiente Dobón, J. J., Zielinska, M., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Grand Accélérateur National d'Ions Lourds (GANIL), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), CSNSM ELEC, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), CSNSM SNO, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), AGATA, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)

Subjects
23.20.−g, 27.50.+e, 29.30.Kv, 29.40.Gx, Nuclear Theory, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, spectrometers, AGATA, PRISMA, spectroscopic information on Zn isotopes
Abstract

Neutron-rich nuclei with protons in the fp shell show an onset of collectivity around N=40. Spectroscopic information is required to understand the underlying mechanism and to determine the relevant terms of the nucleon-nucleon interaction that are responsible for the evolution of the shell structure in this mass region.

Published
2013

22. Half-Life Of The I-Pi=4(-) Intruder State In P-34: M2 Transition Strengths Approaching The Island Of Inversion

Author

Mason, P. J. R., Alharbi, T., Regan, P. H., Marginean, N., Podolyak, Zs., Simpson, E. C., Alkhomashi, N., Bender, P. C., Bowry, M., Bostan, M., Bucurescu, D., Bruce, A. M., Cata-Danil, G., Cata-Danil, I., Chakrabarti, R., Deleanu, D., Detistov, P., Erduran, M. N., Filipescu, D., and Garg, U.

Abstract

The half-life of the 2305-keV, I-pi = 4((-)) intruder state in P-34 has been measured as t(1/2) = 2.0(1) ns using gamma-ray coincidence, fast-timing techniques with the Bucharest HPGe and LaBr3:Ce detector array. Excited states in P-34 were populated using the O-18(O-18, pn)P-34 fusion-evaporation reaction at a beam energy of 36 MeV. Reduced transition probabilities have been calculated for different values of the M2/E3 mixing ratio, delta(E3/M2), and compared with shell-model estimates. For small values of the mixing ratio, the B(M2) value was found to be consistent with similar transitions associated with the occupation of neutron f(7/2) configurations in this mass region.

Published
2012

23. Digital Front-End Electronics for the Neutron Detector NEDA

Author

Egea Canet, F. J., primary, Houarner, C., additional, Boujrad, A., additional, Gonzalez, V., additional, Tripon, M., additional, Jastrzab, M., additional, Triossi, A., additional, de France, G., additional, Gadea, A., additional, Valiente-Dobon, J. J., additional, Barrientos, D., additional, Sanchis, E., additional, Blaizot, M., additional, Bourgault, P., additional, de Angelis, G., additional, Erduran, M. N., additional, Erturk, S., additional, Huyuk, T., additional, Jaworski, G., additional, Luo, X. L., additional, Modamio, V., additional, Moszynski, M., additional, Di Nitto, A., additional, Nyberg, J., additional, Soderstrom, P-A., additional, Palacz, M., additional, and Wadsworth, R., additional

Published
2015
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24. A New Front-End High-Resolution Sampling Board for the New-Generation Electronics of EXOGAM2 and NEDA Detectors

Author

Egea Canet, F. J., primary, Gonzalez, V., additional, Tripon, M., additional, Jastrzab, M., additional, Triossi, A., additional, Gadea, A., additional, de France, G., additional, Valiente-Dobon, J. J., additional, Barrientos, D., additional, Sanchis, E., additional, Boujrad, A., additional, Houarner, C., additional, Blaizot, M., additional, Bourgault, P., additional, de Angelis, G., additional, Erduran, M. N., additional, Erturk, S., additional, Huyuk, T., additional, Jaworski, G., additional, Luo, X. L., additional, Modamio, V., additional, Moszynski, M., additional, Di Nitto, A., additional, Nyberg, J., additional, Soderstrom, P.-A., additional, Palacz, M., additional, and Wadsworth, R., additional

Published
2015
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25. Shell evolution beyondN=40:Cu69,71,73

Author

Sahin, E., primary, Doncel, M., additional, Sieja, K., additional, de Angelis, G., additional, Gadea, A., additional, Quintana, B., additional, Görgen, A., additional, Modamio, V., additional, Mengoni, D., additional, Valiente-Dobón, J. J., additional, John, P. R., additional, Albers, M., additional, Bazzacco, D., additional, Benzoni, G., additional, Birkenbach, B., additional, Cederwall, B., additional, Clément, E., additional, Curien, D., additional, Corradi, L., additional, Désesquelles, P., additional, Dewald, A., additional, Didierjean, F., additional, Duchêne, G., additional, Eberth, J., additional, Erduran, M. N., additional, Farnea, E., additional, Fioretto, E., additional, de France, G., additional, Fransen, C., additional, Gernhäuser, R., additional, Gottardo, A., additional, Hackstein, M., additional, Hagen, T., additional, Hernández-Prieto, A., additional, Hess, H., additional, Hüyük, T., additional, Jungclaus, A., additional, Klupp, S., additional, Korten, W., additional, Kusoglu, A., additional, Lenzi, S. M., additional, Ljungvall, J., additional, Louchart, C., additional, Lunardi, S., additional, Menegazzo, R., additional, Michelagnoli, C., additional, Mijatović, T., additional, Million, B., additional, Molini, P., additional, Montagnoli, G., additional, Montanari, D., additional, Möller, O., additional, Napoli, D. R., additional, Obertelli, A., additional, Orlandi, R., additional, Pollarolo, G., additional, Pullia, A., additional, Recchia, F., additional, Reiter, P., additional, Rosso, D., additional, Rother, W., additional, Salsac, M.-D., additional, Scarlassara, F., additional, Schlarb, M., additional, Siem, S., additional, Singh, Pushpendra P., additional, Söderström, P.-A., additional, Stefanini, A. M., additional, Stézowski, O., additional, Sulignano, B., additional, Szilner, S., additional, Theisen, Ch., additional, Ur, C. A., additional, and Yalcinkaya, M., additional

Published
2015
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26. Test of digital neutron-gamma discrimination with four different photomultiplier tubes for the NEutron Detector Array (NEDA)

Author

Luo, X. L., Modamio, V., Nyberg, Johan, Valiente-Dobon, J. J., Nishada, Q., de Angelis, G., Agramunt, J., Egea, F. J., Erduran, M. N., Erturk, S., de France, G., Gadea, A., Gonzalez, V., Hueyuek, T., Jaworski, G., Moszynski, M., Di Nitto, A., Palacz, M., Soederstroem, P. -A, Sanchis, E., Triossi, A., Wadsworth, R., Luo, X. L., Modamio, V., Nyberg, Johan, Valiente-Dobon, J. J., Nishada, Q., de Angelis, G., Agramunt, J., Egea, F. J., Erduran, M. N., Erturk, S., de France, G., Gadea, A., Gonzalez, V., Hueyuek, T., Jaworski, G., Moszynski, M., Di Nitto, A., Palacz, M., Soederstroem, P. -A, Sanchis, E., Triossi, A., and Wadsworth, R.

Abstract

A comparative study of the neutron-gamma discrimination performance of a liquid scintillator detector BC501A coupled to four different 5 in photomultiplier tubes (ET9390kb, R11833-100, XP4512 and R4144) was carried out Both the Charge Comparison method and the Integrated Rise-Time method were implemented digitally to discriminate between neutrons and gamma rays emitted by a Cf-252 source. In both methods, the neutron-gamma discrimination capabilities of the four photomultiplier tubes were quantitatively compared by evaluating their figure-of-merit values at different energy regions between 50 keVee and 1000 keVee. Additionally, the results were further verified qualitatively using time-of-flight to distinguish gamma rays and neutrons. The results consistently show that photomultiplier tubes R11833-100 and ET9390kb generally perform best regarding neutron-gamma discrimination with only slight differences in figure-of-merit values. This superiority can be explained by their relatively higher photoelectron yield, which indicates that a scintillator detector coupled to a photomultiplier tube with higher photoelectron yield tends to result in better neutron-gamma discrimination performance. The results of this work will provide reference for the choice of photomultiplier tubes for future neutron detector arrays like NEDA.

Published
2014
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27. Lifetime determination of excited states in106Cd

Author

Stephen Ashley, Linnemann, A., Jolie, J., Regan, P. H., Andgren, K., Dewald, A., Mccutchan, E. A., Melon, B., Möller, O., Zamfir, N. V., Amon, L., Boelaert, N., Cakirli, R. B., Casten, R. F., Clark, R. M., Fransen, C., Gelletly, W., Gürdal, G., Heidemann, M., Keyes, K. L., Erduran, M. N., Meyer, D. A., Papenberg, A., Plettner, C., Rainovski, G., Ribas, R. V., Thomas, N. J., Vinson, J., Warner, D. D., Werner, V., Williams, E., and Zell, K. O.

Subjects
Physical Sciences, Nuclear & Particles Physics, Mathematical Sciences
Abstract

Two separate experiments using the Differential Decay Curve Method have been performed to extract mean lifetimes of excited states in 106Cd. The medium-spin states of interest were populated by the 98Mo( 12C, 4n) 106Cd reaction performed at the Wright Nuclear Structure Lab., Yale University. From this experiment, two isomeric state mean lifetimes have been deduced. The low-lying states were populated by the 96Mo(13C, 3n)106Cd reaction performed at the Institut für Kernphysik, Universität zu Köln. The mean lifetime of the Iπ = 21+ state was deduced, tentatively, as 16.4(9) ps. This value differs from the previously accepted literature value from Coulomb excitation of 10.43(9) ps.

Published
2007

28. Study of fission fragments produced by 14N + 235U reaction

Author

Yalçinkaya, M., primary, Ganioglu, E., additional, Erduran, M. N., additional, Akkus, B., additional, Bostan, M., additional, Gürdal, G., additional, Ertürk, S., additional, Balabanski, D., additional, Rainovski, G., additional, Danchev, M., additional, Dragomirova, R., additional, Minkova, A., additional, Vyvey, K., additional, Beetge, R., additional, Fearick, R. W., additional, Mabala, G. K., additional, Roux, D. G., additional, Whittaker, W., additional, Babu, B. R. S., additional, Lawrie, J. J., additional, Naguleswaran, S., additional, Newman, R. T., additional, Rigolet, C., additional, Pilcher, J. V., additional, Smith, F. D., additional, and Sharpey-Shafer, J. F., additional

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29. Lifetime Measurements in Neutron-rich Cu Isotopes

Author

Doncel, Maria, Sahin, E., Gadea, A., de Angelis, G., Quintana, B., Valiente-Dobon, J. J., Modamio, V., Albers, M., Bazzacco, D., Clement, E., Corradi, L., Dewald, A., Duchene, G., Erduran, M. N., Farnea, E., Fioretto, E., Fransen, C., Gernhaeuser, R., Goergen, A., Gottardo, A., Hackstein, M., Hernandez-Prieto, A., Hueyuek, T., Klupp, S., Korten, W., Kusoglu, A., Lenzi, S., Louchart, C., Lunardi, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatovic, T., Montagnoli, G., Montanari, D., Moeller, O., Napoli, D. R., Obertelli, A., Orlandi, R., Pollarolo, G., Recchia, F., Rother, W., Salsac, M. -D, Scarlassara, F., Schlarb, M., Stefanini, A., Sulignano, B., Szilner, S., Ur, C. A., Doncel, Maria, Sahin, E., Gadea, A., de Angelis, G., Quintana, B., Valiente-Dobon, J. J., Modamio, V., Albers, M., Bazzacco, D., Clement, E., Corradi, L., Dewald, A., Duchene, G., Erduran, M. N., Farnea, E., Fioretto, E., Fransen, C., Gernhaeuser, R., Goergen, A., Gottardo, A., Hackstein, M., Hernandez-Prieto, A., Hueyuek, T., Klupp, S., Korten, W., Kusoglu, A., Lenzi, S., Louchart, C., Lunardi, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Mijatovic, T., Montagnoli, G., Montanari, D., Moeller, O., Napoli, D. R., Obertelli, A., Orlandi, R., Pollarolo, G., Recchia, F., Rother, W., Salsac, M. -D, Scarlassara, F., Schlarb, M., Stefanini, A., Sulignano, B., Szilner, S., and Ur, C. A.

Abstract

The nuclear structure of neutron-rich nuclei close to the double-magic nucleus Ni-78 has been investigated by measuring the lifetime of excited states. In this contribution, it will be presented the lifetime of the J(pi) = 7/2(-) excited state at 981 keV of the Cu-71 isotope, measured using the AGATA Demonstrator coupled to the PRISMA spectrometer and the Koln plunger setup. This is the first time this combined setup has been used for a lifetime measurement., QC 20130520

Published
2013
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30. Lifetime measurements in neutron-rich Co-63,Co-65 isotopes using the AGATA demonstrator

Author

Modamio, V., Valiente-Dobon, J. J., Lunardi, S., Lenzi, S. M., Gadea, A., Mengoni, D., Bazzacco, D., Algora, A., Bednarczyk, P., Benzoni, G., Birkenbach, B., Bracco, A., Bruyneel, B., Burger, A., Chavas, J., Corradi, L., Crespi, F. C. L., de Angelis, G., Desesquelles, P., de France, G., Depalo, R., Dewald, A., Doncel, M., Erduran, M. N., Farnea, E., Fioretto, E., Fransen, Ch., Geibel, K., Gottardo, A., Gorgen, A., Habermann, T., Hackstein, M., Hess, H., Hueyuek, T., John, P. R., Jolie, J., Judson, D., Jungclaus, A., Karkour, N., Kempley, R., Leoni, S., Melon, B., Menegazzo, R., Michelagnoli, C., Mijatovic, T., Million, B., Moeller, O., Montagnoli, G., Montanari, D., Nannini, A., Napoli, D. R., Podolyak, Zs., Pollarolo, G., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rosso, D., Rother, W., Sahin, E., Salsac, M. D., Scarlassara, F., Sieja, K., Soderström, P. A., Stefanini, A. M., Stezowski, O., Szilner, S., Theisen, Ch., Travers, B., Ur, C. A., Modamio, V., Valiente-Dobon, J. J., Lunardi, S., Lenzi, S. M., Gadea, A., Mengoni, D., Bazzacco, D., Algora, A., Bednarczyk, P., Benzoni, G., Birkenbach, B., Bracco, A., Bruyneel, B., Burger, A., Chavas, J., Corradi, L., Crespi, F. C. L., de Angelis, G., Desesquelles, P., de France, G., Depalo, R., Dewald, A., Doncel, M., Erduran, M. N., Farnea, E., Fioretto, E., Fransen, Ch., Geibel, K., Gottardo, A., Gorgen, A., Habermann, T., Hackstein, M., Hess, H., Hueyuek, T., John, P. R., Jolie, J., Judson, D., Jungclaus, A., Karkour, N., Kempley, R., Leoni, S., Melon, B., Menegazzo, R., Michelagnoli, C., Mijatovic, T., Million, B., Moeller, O., Montagnoli, G., Montanari, D., Nannini, A., Napoli, D. R., Podolyak, Zs., Pollarolo, G., Pullia, A., Quintana, B., Recchia, F., Reiter, P., Rosso, D., Rother, W., Sahin, E., Salsac, M. D., Scarlassara, F., Sieja, K., Soderström, P. A., Stefanini, A. M., Stezowski, O., Szilner, S., Theisen, Ch., Travers, B., and Ur, C. A.

Abstract

Lifetimes of the low-lying (11/2(-)) states in Co-63,Co-65 have been measured employing the recoil distance doppler shift method (RDDS) with the AGATA gamma-ray array and the PRISMA mass spectrometer. These nuclei were populated via a multinucleon transfer reaction by bombarding a U-238 target with a beam of Ni-64. The experimental B(E2) reduced transition probabilities for Co-63,Co-65 are well reproduced by large-scale shell-model calculations that predict a constant trend of the B(E2) values up to the N = 40 Co-67 isotope.

Published
2013
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31. Monte Carlo simulation of a single detector unit for the neutron detector array NEDA

Author

Jaworski, G., Palacz, M., Nyberg, Johan, Angelis, G. de, France, G. de, Nitto, A. Di, Egea, J., Erduran, M. N., Ertürk, S., Farnea, E., Gadea, A., González, V., Gottardo, A., Hüyük, T., Kownacki, J., Pipidis, A., Roeder, B., Söderström, Pär-Anders, Sanchis, E., Tarnowski, R., Triossi, A., Wadsworth, R., Dobon, J.J. Valiente, Jaworski, G., Palacz, M., Nyberg, Johan, Angelis, G. de, France, G. de, Nitto, A. Di, Egea, J., Erduran, M. N., Ertürk, S., Farnea, E., Gadea, A., González, V., Gottardo, A., Hüyük, T., Kownacki, J., Pipidis, A., Roeder, B., Söderström, Pär-Anders, Sanchis, E., Tarnowski, R., Triossi, A., Wadsworth, R., and Dobon, J.J. Valiente

Abstract

A study of the dimensions and performance of a single detector of the future neutron detector array NEDA was performed by means of Monte Carlo simulations, using GEANT4. Two different liquid scintillators were evaluated: the hydrogen based BC501A and the deuterated BC537. The efficiency and the probability that one neutron will trigger a signal in more than one detector were investigated as a function of the detector size. The simulations were validated comparing the results to experimental measurements performed with two existing neutron detectors, with different geometries, based on the liquid scintillator BC501

Published
2012
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32. AGATA -Advanced GAmma Tracking Array

Author

Akkoyun, S., Algora, A., Alikhani, B., Ameil, F., Angelis, G. de, Arnold, L., Astier, A., Atac, Ayse, Aubert, Y., Aufranc, C., Austin, A., Aydin, S., Azaiez, F., Badoer, S., Balabanski, D. L., Barrientos, D., Baulieu, G., Baumann, R., Bazzacco, D., Beck, F. A., Beck, T., Bednarczyk, P., Bellato, M., Bentley, M. A., Benzoni, G., Berthier, R., Berti, L., Beunard, R., Bianco, G. Lo, Birkenbach, B., Bizzeti, P. G., Bizzeti-Sona, A. M., Blanc, F. Le, Blasco, J. M., Blasi, N., Bloor, D., Boiano, C., Borsato, M., Bortolato, D., Boston, A. J., Boston, H. C., Bourgault, P., Boutachkov, P., Bouty, A., Bracco, A., Brambilla, S., Brawn, I. P., Brondi, A., Broussard, S., Bruyneel, B., Bucurescu, D., Burrows, I., Burger, A., Cabaret, S., Cahan, B., Calore, E., Camera, F., Capsoni, A., Carrio, F., Casati, G., Castoldi, M., Cederwall, B., Cercus, J. -L, Chambert, V., Chambit, M. El, Chapman, R., Charles, L., Chavas, J., Clement, E., Cocconi, P., Coelli, S., Coleman-Smith, P. J., Colombo, A., Colosimo, S., Commeaux, C., Conventi, D., Cooper, R. J., Corsi, A., Cortesi, A., Costa, L., Crespi, F. C. L., Cresswell, J. R., Cullen, D. M., Curien, D., Czermak, A., Delbourg, D., Depalo, R., Descombes, T., Desesquelles, P., Detistov, P., Diarra, C., Didierjean, F., Dimmock, M. R., Doan, Q. T., Domingo-Pardo, C., Doncel, M., Dorangeville, F., Dosme, N., Drouen, Y., Duchêne, G., Dulny, B., Eberth, J., Edelbruck, P., Egea, J., Engert, T., Erduran, M. N., Erturk, S., Fanin, C., Fantinel, S., Farnea, E., Faul, T., Filliger, M., Filmer, F., Finck, Ch., France, G. de, Gadea, A., Gast, W., Geraci, A., Gerl, J., Gernhauser, R., Giannatiempo, A., Giaz, A., Gibelin, L., Givechev, A., Goel, N., Gonzalez, V., Gottardo, A., Grave, X., Grebosz, J., Griffiths, R., Grint, A. N., Gros, P., Guevara, L., Gulmini, M., Gorgen, A., Ha, H. T. M., Habermann, T., Harkness, L. J., Harroch, H., Hauschild, K., He, C., Hernandez-Prieto, A., Hervieu, B., Hess, H., Huyuk, T., Ince, E., Isocrate, R., Jaworski, G., Johnson, A., Jolie, J., Jones, P., Jonson, B., Joshi, P., Judson, D. S., Jungclaus, A., Kaci, M., Karkour, N., Karolak, M., Karkour, A., Kebbiri, M., Kempley, R. S., Khaplanov, A., Klupp, S., Kogimtzis, M., Kojouharov, I., Korichi, A., Korten, W., Kroll, Th., Krucken, R., Kurz, N., Ky, B. Y., Labiche, M., Lafay, X., Lavergne, L., Lazarus, I. H., Leboutelier, S., Lefebvre, F., Legay, E., Legeard, L., Lelli, F., Lenzi, S. M., Leoni, S., Lermitage, A., Lersch, D., Leske, J., Letts, S. C., Lhenoret, S., Lieder, R. M., Linget, D., Ljungvall, J., Lopez-Martens, A., Lotode, A., Lunardi, S., Maj, A., Marel, J. van der, Mariette, Y., Marginean, N., Marginean, R., Maron, G., Mather, A. R., Meczynski, W., Mendez, V., Medina, P., Melon, B., Menegazzo, R., Mengoni, D., Merchan, E., Mihailescu, L., Michelagnoli, C., Mierzejewski, J., Milechina, L., Million, B., Mitev, K., Molini, P., Montanari, D., Moon, S., Morbiducci, F., Moro, R., Morrall, P. S., Möller, O., Nannini, A., Napoli, D. R., Nelson, L., Nespolo, M., Ngo, V. L., Nicoletto, M., Nicolini, R., Noa, Y. Le, Nolan, P. J., Norman, M., Nyberg, Johan, Obertelli, A., Olariu, A., Orlandi, R., Oxley, D. C., Ozben, C., Ozille, M., Oziol, C., Pachoud, E., Palacz, M., Palin, J., Pancin, J., Parisel, C., Pariset, P., Pascovici, G., Peghin, R., Pellegri, L., Perego, A., Perrier, S., Petcu, M., Petkov, P., Petrache, C., Pierre, E., Pietralla, N., Pietri, S., Pignanelli, M., Piqueras, I., Podolyak, Z., Pouhalec, P. Le, Pouthas, J., Pugnere, D., Pucknell, V. F. E., Pullia, A., Quintana, B., Raine, R., Rainovski, G., Ramina, L., Rampazzo, G., Rana, G. La, Rebeschini, M., Recchia, F., Redon, N., Reese, M., Reiter, P., Regan, P. H., Riboldi, S., Richer, M., Rigato, M., Rigby, S., Ripamonti, G., Robinson, A. P., Robin, J., Roccaz, J., Ropert, J. -A, Rosse, B., Rossi Alvarez, C., Rosso, D., Rubio, B., Rudolph, D., Saillant, F., Sahin, E., Salomon, F., Salsac, M. -D, Salt, J., Salvato, G., Sampson, J., Sanchis, E., Santos, C., Schaffner, H., Schlarb, M., Scraggs, D. P., Seddon, D., Senyigit, M., Sigward, M. -H, Simpson, G., Simpson, J., Slee, M., Smith, J. F., Sona, P., Sowicki, B., Spolaore, P., Stahl, C., Stanios, T., Stefanova, E., Stezowski, O., Strachan, J., Suliman, G., Söderström, Pär-Anders, Tain, J. L., Tanguy, S., Tashenov, S., Theisen, Ch., Thornhill, J., Tomasi, F., Toniolo, N., Touzery, R., Travers, B., Triossi, A., Tripon, M., Tun-Lanoe, K. M. M., Turcato, M., Unsworth, C., Ur, C. A., Valiente-Dobon, J. J., Vandone, V., Vardaci, E., Venturelli, R., Veronese, F., Veyssiere, Ch., Viscione, E., Wadsworth, R., Walker, P. M., Warr, N., Weber, C., Weisshaar, D., Wells, D., Wieland, O., Wiens, A., Wittwer, G., Wollersheim, H. J., Zocca, F., Zamfir, N. V., Zieblinski, M., Zucchiatti, A., Akkoyun, S., Algora, A., Alikhani, B., Ameil, F., Angelis, G. de, Arnold, L., Astier, A., Atac, Ayse, Aubert, Y., Aufranc, C., Austin, A., Aydin, S., Azaiez, F., Badoer, S., Balabanski, D. L., Barrientos, D., Baulieu, G., Baumann, R., Bazzacco, D., Beck, F. A., Beck, T., Bednarczyk, P., Bellato, M., Bentley, M. A., Benzoni, G., Berthier, R., Berti, L., Beunard, R., Bianco, G. Lo, Birkenbach, B., Bizzeti, P. G., Bizzeti-Sona, A. M., Blanc, F. Le, Blasco, J. M., Blasi, N., Bloor, D., Boiano, C., Borsato, M., Bortolato, D., Boston, A. J., Boston, H. C., Bourgault, P., Boutachkov, P., Bouty, A., Bracco, A., Brambilla, S., Brawn, I. P., Brondi, A., Broussard, S., Bruyneel, B., Bucurescu, D., Burrows, I., Burger, A., Cabaret, S., Cahan, B., Calore, E., Camera, F., Capsoni, A., Carrio, F., Casati, G., Castoldi, M., Cederwall, B., Cercus, J. -L, Chambert, V., Chambit, M. El, Chapman, R., Charles, L., Chavas, J., Clement, E., Cocconi, P., Coelli, S., Coleman-Smith, P. J., Colombo, A., Colosimo, S., Commeaux, C., Conventi, D., Cooper, R. J., Corsi, A., Cortesi, A., Costa, L., Crespi, F. C. L., Cresswell, J. R., Cullen, D. M., Curien, D., Czermak, A., Delbourg, D., Depalo, R., Descombes, T., Desesquelles, P., Detistov, P., Diarra, C., Didierjean, F., Dimmock, M. R., Doan, Q. T., Domingo-Pardo, C., Doncel, M., Dorangeville, F., Dosme, N., Drouen, Y., Duchêne, G., Dulny, B., Eberth, J., Edelbruck, P., Egea, J., Engert, T., Erduran, M. N., Erturk, S., Fanin, C., Fantinel, S., Farnea, E., Faul, T., Filliger, M., Filmer, F., Finck, Ch., France, G. de, Gadea, A., Gast, W., Geraci, A., Gerl, J., Gernhauser, R., Giannatiempo, A., Giaz, A., Gibelin, L., Givechev, A., Goel, N., Gonzalez, V., Gottardo, A., Grave, X., Grebosz, J., Griffiths, R., Grint, A. N., Gros, P., Guevara, L., Gulmini, M., Gorgen, A., Ha, H. T. M., Habermann, T., Harkness, L. J., Harroch, H., Hauschild, K., He, C., Hernandez-Prieto, A., Hervieu, B., Hess, H., Huyuk, T., Ince, E., Isocrate, R., Jaworski, G., Johnson, A., Jolie, J., Jones, P., Jonson, B., Joshi, P., Judson, D. S., Jungclaus, A., Kaci, M., Karkour, N., Karolak, M., Karkour, A., Kebbiri, M., Kempley, R. S., Khaplanov, A., Klupp, S., Kogimtzis, M., Kojouharov, I., Korichi, A., Korten, W., Kroll, Th., Krucken, R., Kurz, N., Ky, B. Y., Labiche, M., Lafay, X., Lavergne, L., Lazarus, I. H., Leboutelier, S., Lefebvre, F., Legay, E., Legeard, L., Lelli, F., Lenzi, S. M., Leoni, S., Lermitage, A., Lersch, D., Leske, J., Letts, S. C., Lhenoret, S., Lieder, R. M., Linget, D., Ljungvall, J., Lopez-Martens, A., Lotode, A., Lunardi, S., Maj, A., Marel, J. van der, Mariette, Y., Marginean, N., Marginean, R., Maron, G., Mather, A. R., Meczynski, W., Mendez, V., Medina, P., Melon, B., Menegazzo, R., Mengoni, D., Merchan, E., Mihailescu, L., Michelagnoli, C., Mierzejewski, J., Milechina, L., Million, B., Mitev, K., Molini, P., Montanari, D., Moon, S., Morbiducci, F., Moro, R., Morrall, P. S., Möller, O., Nannini, A., Napoli, D. R., Nelson, L., Nespolo, M., Ngo, V. L., Nicoletto, M., Nicolini, R., Noa, Y. Le, Nolan, P. J., Norman, M., Nyberg, Johan, Obertelli, A., Olariu, A., Orlandi, R., Oxley, D. C., Ozben, C., Ozille, M., Oziol, C., Pachoud, E., Palacz, M., Palin, J., Pancin, J., Parisel, C., Pariset, P., Pascovici, G., Peghin, R., Pellegri, L., Perego, A., Perrier, S., Petcu, M., Petkov, P., Petrache, C., Pierre, E., Pietralla, N., Pietri, S., Pignanelli, M., Piqueras, I., Podolyak, Z., Pouhalec, P. Le, Pouthas, J., Pugnere, D., Pucknell, V. F. E., Pullia, A., Quintana, B., Raine, R., Rainovski, G., Ramina, L., Rampazzo, G., Rana, G. La, Rebeschini, M., Recchia, F., Redon, N., Reese, M., Reiter, P., Regan, P. H., Riboldi, S., Richer, M., Rigato, M., Rigby, S., Ripamonti, G., Robinson, A. P., Robin, J., Roccaz, J., Ropert, J. -A, Rosse, B., Rossi Alvarez, C., Rosso, D., Rubio, B., Rudolph, D., Saillant, F., Sahin, E., Salomon, F., Salsac, M. -D, Salt, J., Salvato, G., Sampson, J., Sanchis, E., Santos, C., Schaffner, H., Schlarb, M., Scraggs, D. P., Seddon, D., Senyigit, M., Sigward, M. -H, Simpson, G., Simpson, J., Slee, M., Smith, J. F., Sona, P., Sowicki, B., Spolaore, P., Stahl, C., Stanios, T., Stefanova, E., Stezowski, O., Strachan, J., Suliman, G., Söderström, Pär-Anders, Tain, J. L., Tanguy, S., Tashenov, S., Theisen, Ch., Thornhill, J., Tomasi, F., Toniolo, N., Touzery, R., Travers, B., Triossi, A., Tripon, M., Tun-Lanoe, K. M. M., Turcato, M., Unsworth, C., Ur, C. A., Valiente-Dobon, J. J., Vandone, V., Vardaci, E., Venturelli, R., Veronese, F., Veyssiere, Ch., Viscione, E., Wadsworth, R., Walker, P. M., Warr, N., Weber, C., Weisshaar, D., Wells, D., Wieland, O., Wiens, A., Wittwer, G., Wollersheim, H. J., Zocca, F., Zamfir, N. V., Zieblinski, M., and Zucchiatti, A.

Abstract

The Advanced GAmma Tracking Array (AGATA) is a European project to develop and operate the next generation gamma-ray spectrometer. AGATA is based on the technique of gamma-ray energy tracking in electrically segmented high-purity germanium crystals. This technique requires the accurate determination of the energy, time and position of every interaction as a gamma ray deposits its energy within the detector volume. Reconstruction of the full interaction path results in a detector with very high efficiency and excellent spectral response. The realisation of gamma-ray tracking and AGATA is a result of many technical advances. These include the development of encapsulated highly segmented germanium detectors assembled in a triple cluster detector cryostat, an electronics system with fast digital sampling and a data acquisition system to process the data at a high rate. The full characterisation of the crystals was measured and compared with detector-response simulations. This enabled pulse-shape analysis algorithms, to extract energy, time and position, to be employed. In addition, tracking algorithms for event reconstruction were developed. The first phase of AGATA is now complete and operational in its first physics campaign. In the future AGATA will be moved between laboratories in Europe and operated in a series of campaigns to take advantage of the different beams and facilities available to maximise its science output. The paper reviews all the achievements made in the AGATA project including all the necessary infrastructure to operate and support the spectrometer.

Published
2012
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33. Lifetime measurements in neutron-rich63,65Co isotopes using the AGATA demonstrator

Author

Modamio, V., primary, Valiente-Dobón, J. J., additional, Lunardi, S., additional, Lenzi, S. M., additional, Gadea, A., additional, Mengoni, D., additional, Bazzacco, D., additional, Algora, A., additional, Bednarczyk, P., additional, Benzoni, G., additional, Birkenbach, B., additional, Bracco, A., additional, Bruyneel, B., additional, Bürger, A., additional, Chavas, J., additional, Corradi, L., additional, Crespi, F. C. L., additional, de Angelis, G., additional, Désesquelles, P., additional, de France, G., additional, Depalo, R., additional, Dewald, A., additional, Doncel, M., additional, Erduran, M. N., additional, Farnea, E., additional, Fioretto, E., additional, Fransen, Ch., additional, Geibel, K., additional, Gottardo, A., additional, Görgen, A., additional, Habermann, T., additional, Hackstein, M., additional, Hess, H., additional, Hüyük, T., additional, John, P. R., additional, Jolie, J., additional, Judson, D., additional, Jungclaus, A., additional, Karkour, N., additional, Kempley, R., additional, Leoni, S., additional, Melon, B., additional, Menegazzo, R., additional, Michelagnoli, C., additional, Mijatović, T., additional, Million, B., additional, Möller, O., additional, Montagnoli, G., additional, Montanari, D., additional, Nannini, A., additional, Napoli, D. R., additional, Podolyak, Zs., additional, Pollarolo, G., additional, Pullia, A., additional, Quintana, B., additional, Recchia, F., additional, Reiter, P., additional, Rosso, D., additional, Rother, W., additional, Sahin, E., additional, Salsac, M. D., additional, Scarlassara, F., additional, Sieja, K., additional, Söderström, P. A., additional, Stefanini, A. M., additional, Stezowski, O., additional, Szilner, S., additional, Theisen, Ch., additional, Travers, B., additional, and Ur, C. A., additional

Published
2013
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34. Collective nature of low-lying excitations in70,72,74Zn from lifetime measurements using the AGATA spectrometer demonstrator

Author

Louchart, C., primary, Obertelli, A., additional, Görgen, A., additional, Korten, W., additional, Bazzacco, D., additional, Birkenbach, B., additional, Bruyneel, B., additional, Clément, E., additional, Coleman-Smith, P. J., additional, Corradi, L., additional, Curien, D., additional, de Angelis, G., additional, de France, G., additional, Delaroche, J.-P., additional, Dewald, A., additional, Didierjean, F., additional, Doncel, M., additional, Duchêne, G., additional, Eberth, J., additional, Erduran, M. N., additional, Farnea, E., additional, Finck, C., additional, Fioretto, E., additional, Fransen, C., additional, Gadea, A., additional, Girod, M., additional, Gottardo, A., additional, Grebosz, J., additional, Habermann, T., additional, Hackstein, M., additional, Huyuk, T., additional, Jolie, J., additional, Judson, D., additional, Jungclaus, A., additional, Karkour, N., additional, Klupp, S., additional, Krücken, R., additional, Kusoglu, A., additional, Lenzi, S. M., additional, Libert, J., additional, Ljungvall, J., additional, Lunardi, S., additional, Maron, G., additional, Menegazzo, R., additional, Mengoni, D., additional, Michelagnoli, C., additional, Million, B., additional, Molini, P., additional, Möller, O., additional, Montagnoli, G., additional, Montanari, D., additional, Napoli, D. R., additional, Orlandi, R., additional, Pollarolo, G., additional, Prieto, A., additional, Pullia, A., additional, Quintana, B., additional, Recchia, F., additional, Reiter, P., additional, Rosso, D., additional, Rother, W., additional, Sahin, E., additional, Salsac, M.-D., additional, Scarlassara, F., additional, Schlarb, M., additional, Siem, S., additional, Singh, P. P., additional, Söderström, P.-A., additional, Stefanini, A. M., additional, Stézowski, O., additional, Sulignano, B., additional, Szilner, S., additional, Theisen, Ch., additional, Ur, C. A., additional, Valiente-Dobón, J. J., additional, and Zielinska, M., additional

Published
2013
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35. Intrinsic state lifetimes in Pd-103 and Cd-106,Cd-107

Author

Ashley, S. F., Regan, P. H., Andgren, Karin, McCutchan, E. A., Zamfir, N. V., Amon, L., Cakirli, R. B., Casten, R. F., Clark, R. M., Gelletly, W., Gürdal, G., Keyes, K. L., Meyer, D. A., Erduran, M. N., Papenberg, A., Pietralla, N., Plettner, C., Rainovski, G., Ribas, R. V., Thomas, N. J., Vinson, J., Warner, D. D., Werner, V., Williams, E., Liu, H. L., Xu, F. R., Ashley, S. F., Regan, P. H., Andgren, Karin, McCutchan, E. A., Zamfir, N. V., Amon, L., Cakirli, R. B., Casten, R. F., Clark, R. M., Gelletly, W., Gürdal, G., Keyes, K. L., Meyer, D. A., Erduran, M. N., Papenberg, A., Pietralla, N., Plettner, C., Rainovski, G., Ribas, R. V., Thomas, N. J., Vinson, J., Warner, D. D., Werner, V., Williams, E., Liu, H. L., and Xu, F. R.

Abstract

The mean-lifetimes, tau, of various medium-spin excited states in Pd-103 and Cd-106,Cd-107 have been deduced using the Recoil Distance Doppler Shift technique and the Differential Decay Curve Method. In Cd-106, the mean-lifetimes of the I-pi=12(+) state at E-x=5418 keV and the I-pi=11(-) state at E-x=4324 keV have been deduced as 11.4(17)ps and 8.2(7)ps, respectively. The associated beta(2) deformation within the axially-symmetric deformed rotor model for these states are 0.14(1) and 0.14(1), respectively. The beta(2) deformation of 0.14(1) for the I-pi=12(+) state in Cd-106 compares with a predicted beta(2) value from total Routhian surface (TRS) calculations of 0.17. In addition, the mean-lifetimes of the yrast I-pi = 15(-)/2 states in Pd-103 (at E-x=1262 keV) and Cd-107 (at E-x=1360 keV) have been deduced to be 31.2(44)ps and 31.4(17)ps, respectively, corresponding to beta(2) values of 0.16(1) and 0.12(1) assuming axial symmetry. Agreement with TRS calculations are good for Pd-103 but deviate for that predicted for Cd-107., QC 20110708

Published
2007
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36. Lifetime determination of excited states in Cd-106

Author

Ashley, S. F., Linnemann, A., Jolie, J., Regan, P. H., Andgren, Karin, Dewald, A., McCutchan, E. A., Melon, B., Moeller, O., Zamfir, N. V., Amon, L., Boelaert, N., Cakirli, R. B., Casten, R. F., Clark, R. M., Fransen, C., Gelletly, W., Gurdal, G., Heidemann, M., Keyes, K. L., Erduran, M. N., Meyer, D. A., Papenberg, A., Plettner, C., Rainovski, G., Ribas, R. V., Thomas, Nathaniel J., Vinson, J., Warner, D. D., Werner, V., Williams, E., Zell, K. O., Ashley, S. F., Linnemann, A., Jolie, J., Regan, P. H., Andgren, Karin, Dewald, A., McCutchan, E. A., Melon, B., Moeller, O., Zamfir, N. V., Amon, L., Boelaert, N., Cakirli, R. B., Casten, R. F., Clark, R. M., Fransen, C., Gelletly, W., Gurdal, G., Heidemann, M., Keyes, K. L., Erduran, M. N., Meyer, D. A., Papenberg, A., Plettner, C., Rainovski, G., Ribas, R. V., Thomas, Nathaniel J., Vinson, J., Warner, D. D., Werner, V., Williams, E., and Zell, K. O.

Abstract

Two separate experiments using the Differential Decay Curve Method have been performed to extract mean lifetimes of excited states in 106 Cd. The inedium-spin states of interest were populated by the Mo-98(C-12, 4n) Cd-106 reaction performed at the Wright Nuclear Structure Lab., Yale University. From this experiment, two isomeric state mean lifetimes have been deduced. The low-lying states were populated by the Mo-96(C-13, 3n)Cd-106 reaction performed at the Institut fur Kernphysik, Universitat zu Koln. The mean lifetime of the I-pi = 2(1)(+) state was deduced, tentatively, as 16.4(9) ps. This value differs from the previously accepted literature value from Coulomb excitation of 10.43(9) ps., QC 20110930

Published
2007

37. Recoil distance method lifetime measurements in Cd-107 and Pd-101.

Author

Andgren, Karin, Ashley, S. F., Regan, P. H., McCutchan, E. A., Zamfir, N. V., Amon, L., Cakirli, R. B., Casten, R. F., Clark, R. M., Erduran, M. N., Gurdal, G., Keyes, K. L., Meyer, D. A., Papenberg, A., Pietralla, N., Plettner, C., Rainovski, G., Ribas, R. V., Thomas, N. J., Vinson, J., Warner, D. D., Werner, V., Williams, E., Andgren, Karin, Ashley, S. F., Regan, P. H., McCutchan, E. A., Zamfir, N. V., Amon, L., Cakirli, R. B., Casten, R. F., Clark, R. M., Erduran, M. N., Gurdal, G., Keyes, K. L., Meyer, D. A., Papenberg, A., Pietralla, N., Plettner, C., Rainovski, G., Ribas, R. V., Thomas, N. J., Vinson, J., Warner, D. D., Werner, V., and Williams, E.

Abstract

Preliminary lifetime values have been measured for a number of near-yrast states in the odd-A transitional nuclei Cd-107 and Pd-103. The reaction used to populate the nuclei of interest was Mo-98(C-12, 3nx alpha)Cd-107, Pd-103, with the beam delivered by the tandem accelerator of the Wright Nuclear Structure Laboratory at an incident beam energy of 60 MeV. Our experiment was aimed at the investigation of collective excitations built on the unnatural parity, v h(11/2) orbital, specifically by measuring the B(E2) values of decays from the excited levels built on this intrinsic structure, using the Doppler Recoil Distance Method. We report lifetimes and associated transition probabilities for decays from the 15/2(-) and the 19/2(-) states in Cd-107 and the first measurement of the 15/2- state in Pd-103. These results suggest that neither a simple rotational or vibrational interpretation is sufficient to explain the observed structures., QC 20111005

Published
2006
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38. Half-life of the Iπ= 4−Intruder State in34P Using LaBr3:Ce Fast Timing

Author

Mason, P J R, primary, Alharbi, T, additional, Regan, P H, additional, Mǎrginean, N, additional, Podolyàk, Zs, additional, Alkhomashi, N, additional, Bender, P C, additional, Bowry, M, additional, Bostan, M, additional, Bucurescu, D, additional, Bruce, A M, additional, Cǎta-Danil, G, additional, Cǎta-Danil, I, additional, Chakrabarti, R, additional, Deleanu, D, additional, Detistov, P, additional, Erduran, M N, additional, Filipescu, D, additional, Garg, U, additional, Glodariu, T, additional, Ghiţǎ, D, additional, Ghugre, S S, additional, Kusoglu, A, additional, Mǎrginean, R, additional, Mihai, C, additional, Nakhostin, M, additional, Negret, A, additional, Pascu, S, additional, Triguero, C Rodríguez, additional, Sava, T, additional, Simpson, E C, additional, Sinha, A K, additional, Stroe, L, additional, Suliman, G, additional, and Zamfir, N V, additional

Published
2012
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39. Half-life of theIπ=4−intruder state in34P:M2transition strengths approaching the island of inversion

Author

Mason, P. J. R., primary, Alharbi, T., additional, Regan, P. H., additional, Mărginean, N., additional, Podolyàk, Zs., additional, Simpson, E. C., additional, Alkhomashi, N., additional, Bender, P. C., additional, Bowry, M., additional, Bostan, M., additional, Bucurescu, D., additional, Bruce, A. M., additional, Căta-Danil, G., additional, Căta-Danil, I., additional, Chakrabarti, R., additional, Deleanu, D., additional, Detistov, P., additional, Erduran, M. N., additional, Filipescu, D., additional, Garg, U., additional, Glodariu, T., additional, Ghiţă, D., additional, Ghugre, S. S., additional, Kusoglu, A., additional, Mărginean, R., additional, Mihai, C., additional, Nakhostin, M., additional, Negret, A., additional, Pascu, S., additional, Rodríguez Triguero, C., additional, Sava, T., additional, Sinha, A. K., additional, Stroe, L., additional, Suliman, G., additional, and Zamfir, N. V., additional

Published
2012
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40. Erratum: High-spin states inAu191,193andPt192: Evidence for oblate deformation and triaxial shapes [Phys. Rev. C 76, 044315 (2007)]

Author

Oktem, Y., primary, Balabanski, D. L., additional, Akkus, B., additional, Beausang, C. W., additional, Bostan, M., additional, Cakirli, R. B., additional, Casten, R. F., additional, Danchev, M., additional, Djongolov, M., additional, Erduran, M. N., additional, Erturk, S., additional, Gladniski, K. A., additional, Gürdal, G., additional, Goon, J. TM., additional, Hartley, D. J., additional, Hecht, A. A., additional, Krücken, R., additional, Nikolov, N., additional, Novak, J. R., additional, Rainovski, G., additional, Riedinger, L. L., additional, Yigitoglu, I., additional, Zamfir, N. V., additional, and Zeidan, O., additional

Published
2008
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41. Nuclear Structure far from stability at the N = 50 Shell Closure

Author

Sahin, E., primary, de Angelis, G., additional, Gadea, A., additional, Duchene, G., additional, Faul, T., additional, Napoli, D. R., additional, Farnea, E., additional, Valiente-Dobón, J. J., additional, Orlandi, R., additional, Mengoni, D., additional, Vedova, F. Della, additional, Singh, R. P., additional, Ur, C., additional, Recchia, F., additional, Erduran, M. N., additional, Bostan, M., additional, Erturk, S., additional, Aydin, S., additional, Wiedemann, K. T., additional, Stefanini, A. M., additional, Lenzi, S., additional, Lunardi, S., additional, Marginean, N., additional, Corradi, L., additional, Fioretto, E., additional, Montagnoli, G., additional, Scarlassara, F., additional, Mason, P., additional, Szilner, S., additional, Ackermann, D., additional, Pollarolo, G., additional, Oliveira, J. R. B., additional, Byrski, T., additional, Curien, D., additional, Gall, B., additional, Haas, F., additional, Dorwaux, O., additional, Robin, J., additional, Nespolo, M., additional, Azaiez, F., additional, De France, G., additional, Algora, A., additional, Liang, X., additional, Nowacki, F., additional, Zhang, Y. H., additional, Zhou, X. H., additional, Demetriou, P., additional, Julin, R., additional, and Harissopulos, S. V., additional

Published
2008
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42. Intrinsic state lifetimes inPd103andCd106,107

Author

Ashley, S. F., primary, Regan, P. H., additional, Andgren, K., additional, McCutchan, E. A., additional, Zamfir, N. V., additional, Amon, L., additional, Cakirli, R. B., additional, Casten, R. F., additional, Clark, R. M., additional, Gelletly, W., additional, Gürdal, G., additional, Keyes, K. L., additional, Meyer, D. A., additional, Erduran, M. N., additional, Papenberg, A., additional, Pietralla, N., additional, Plettner, C., additional, Rainovski, G., additional, Ribas, R. V., additional, Thomas, N. J., additional, Vinson, J., additional, Warner, D. D., additional, Werner, V., additional, Williams, E., additional, Liu, H. L., additional, and Xu, F. R., additional

Published
2007
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43. High-spin states inAu191,193andPt192: Evidence for oblate deformation and triaxial shapes

Author

Oktem, Y., primary, Balabanski, D. L., additional, Akkus, B., additional, Beausang, C. W., additional, Bostan, M., additional, Cakirli, R. B., additional, Casten, R. F., additional, Danchev, M., additional, Djongolov, M., additional, Erduran, M. N., additional, Erturk, S., additional, Gladniski, K. A., additional, Gürdal, G., additional, Goon, J. Tm., additional, Hartley, D. J., additional, Hecht, A. A., additional, Krücken, R., additional, Nikolov, N., additional, Novak, J. R., additional, Rainovski, G., additional, Riedinger, L. L., additional, Yigitoglu, I., additional, Zamfir, N. V., additional, and Zeidan, O., additional

Published
2007
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44. EVIDENCE FOR X(5) CRITICAL POINT SYMMETRY IN 128Ce

Author

BALABANSKI, D. L., primary, GLADNISHKI, K. A., additional, LO BIANCO, G., additional, SALTARELLI, A., additional, ZAMFIR, N. V., additional, McCUTCHAN, E. A., additional, AI, H., additional, CASTEN, R. F., additional, HEINZ, A., additional, MEYER, D. A., additional, PLETTNER, C., additional, QIAN, J., additional, WERNER, V., additional, WILLIAMS, E., additional, AKKUS, B., additional, AMON, L., additional, CAKIRLI, R. B., additional, ERDURAN, M. N., additional, OKTEM, Y., additional, ASHLEY, S. F., additional, REGAN, P. H., additional, and RAINOVSKI, G., additional

Published
2006
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45. RDM lifetime measurements in107Cd

Author

Andgren, K, primary, Ashley, S F, additional, Regan, P H, additional, McCutchan, E A, additional, Zamfir, N V, additional, Amon, L, additional, Cakirli, R B, additional, Casten, R F, additional, Clark, R M, additional, Gürdal, G, additional, Keyes, K L, additional, Meyer, D A, additional, Erduran, M N, additional, Papenberg, A, additional, Pietralla, N, additional, Plettner, C, additional, Rainovski, G, additional, Ribas, R V, additional, Thomas, N J, additional, Vinson, J, additional, Warner, D D, additional, Werner, V, additional, and Williams, E, additional

Published
2005
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46. Delayed backbending in theπh9∕2band ofIr187

Author

Danchev, M., primary, Balabanski, D. L., additional, Yigitoglu, I., additional, Akkus, B., additional, Beausang, C. W., additional, Bostan, M., additional, Casten, R. F., additional, Djongolov, M. K., additional, Erduran, M. N., additional, Erturk, S., additional, Gladnishki, K. A., additional, Gurdal, G., additional, Goon, J. TM., additional, Hartley, D. J., additional, Hecht, A. A., additional, Krücken, R., additional, Novak, J. R., additional, Oktem, Y., additional, Rainovski, G., additional, Riedinger, L. L., additional, Zamfir, N. V., additional, and Zeidan, O., additional

Published
2003
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47. Realistic simulations of the AGATA Demonstrator+PRISMA Spectrometer.

Author

Ince, E., Farnea, E., Latina, A., and Erduran, M. N.

Subjects
MAGNETIC spectrometer, DOPPLER effect, MONTE Carlo method, GERMANIUM diodes, SPECTRUM analysis instruments
Abstract

The performance of the AGATA Demonstrator Array coupled to the PRISMA magnetic spectrometer have been evaluated in a consistent way using detailed Monte Carlo simulations of the two devices. Results for the 90Zr+208Pb at 560 MeV reaction are presented and discussed here, proving that the Doppler correction capabilities of the AGATA+PRISMA setup will be very close to the intrinsic energy resolution of the germanium detectors. [ABSTRACT FROM AUTHOR]

Published
2008
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48. Study of fission fragments produced by 14N + 235U reaction.

Author

Fülöp, Zsolt, Gyürky, György, Somorjai, Endre, Yalçinkaya, M., Ganioglu, E., Erduran, M. N., Akkus, B., Bostan, M., Gürdal, G., Ertürk, S., Balabanski, D., Rainovski, G., Danchev, M., Dragomirova, R., Minkova, A., Vyvey, K., Beetge, R., Fearick, R. W., Mabala, G. K., and Roux, D. G.

Abstract

This work was performed to understand the structure of neutron-rich fission fragments around the 130 mass region. A thin 235U target was bombarded by a 14N beam with 10 MeV/A from the Separated Sector Cyclotron at the iThemba Laboratory for Accelerator Based Sciences, Cape Town, South Africa. The main goal was to detect and identify fission fragments and to obtain their mass distribution by using solar cell detectors in the AFRODITE (African Omnipurpose Detector for Innovative Techniques and Experiments) spectrometer. The X-rays emitted from fission fragments were detected by LEP (Low Energy Photon) detectors and γ-rays emitted from excited states of the fission fragments were detected by CLOVER detectors in the spectrometer. [ABSTRACT FROM AUTHOR]

Published
2006
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49. Octupole Correlations In High-K States In 240Pu.

Author

Amon, L., Mullins, S. M., Akkus, B., and Erduran, M. N.

Subjects
PHYSICS, GAMMA ray spectrometer, NUCLEAR isomers, GAMMA rays, SPECTROMETERS
Abstract

The aim was to search for reflection asymmetric high-K states in 240Pu by measuring coincidences across the T1/2 = 165 ns, Kπ = 5- two-quasiproton isomer. The measurements were undertaken with the AFRODITE gamma-ray spectrometer when a pulsed beam of 30MeV α particles was directed onto a 238U target. No evidence was found for the known γ rays that decay from the isomer into the ground state band. © 2004 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2004
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