Search

Your search keyword '"Doré D."' showing total 899 results
Start Over "Doré D."

Refine your results

more »

more »

more »

more »

more »

more »

more »
899 results on '"Doré D."'

2. Experimental evidence of the effect of nuclear shells on fission dissipation and time

Author

Ramos, D., Caamano, M., Farget, F., Rodriguez-Tajes, C., Lemasson, A., Schmitt, C., Audouin, L., Benlliure, J., Casarejos, E., Clement, E., Cortina, D., Delaune, O., Derkx, X., Dijon, A., Dore, D., Fernandez-Dominguez, B., de France, G., Heinz, A., Jacquot, B., Paradela, C., Rejmund, M., Roger, T., and Salsac, M. -D.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

Nuclear fission is still one of the most complex physical processes we can observe in nature due to the interplay of macroscopic and microscopic nuclear properties that decide the result. An example of this coupling is the presence of nuclear dissipation as an important ingredient that contributes to drive the dynamics and has a clear impact on the time of the process. However, different theoretical interpretations, and scarce experimental data make it poorly understood. In this letter, we present the first experimental determination of the dissipation energy in fission as a function of the fragment split, for three different fissioning systems. The amount of dissipation was obtained through the measurement of the relative production of fragments with even and odd atomic numbers with respect to different initial fission energies. The results reveal a clear effect of particular nuclear shells on the dissipation and fission dynamics. In addition, the relative production of fragments with even and odd atomic numbers appears as a potential contributor to the long-standing problem of the time scale in fission.

Published
2023
Full Text
View/download PDF

3. Stopping power of fission fragments in thin Mylar and nickel foils

Author

Materna, T., Berthoumieux, E., Deshayes, Q., Doré, D., Kebbiri, M., Letourneau, A., Thulliez, L., Kim, Y. H., Köster, U., and Ledoux, X.

Subjects
Nuclear Experiment, Physics - Instrumentation and Detectors
Abstract

The energy loss of heavy ions in thin Mylar and nickel foils was measured accurately using fission fragments from $^{239}Pu(n_{th},f)$, mass and energy separated by the Lohengrin separator at ILL. The detection setup, placed at the focal plane of the Lohengrin separator enabled to measure precisely the kinetic energy difference of selected fragments after passing through the sample. From these data, the stopping powers in Mylar and nickel layers were extracted and compared to calculations. Whereas large deviations are observed with SRIM-2013 for Mylar, fairly good agreements are obtained with the semi-empirical approach of Knyazheva et al. and the calculations contained within the DPASS database. In nickel, SRIM-2013 and Knyazheva model are in agreement with our data within about 10 %, while large deviations are observed with DPASS. We used our data to provide updated parameters for the Knyazheva et al. model and rescale DPASS database for nickel and Mylar., Comment: 19 pages, 18 figures

Published
2021
Full Text
View/download PDF

5. Connection between nuclear structure, dissipation, and time in fission data

Author

Caamaño M., Ramos D., Fernández D., Mantovani G., Farget F., Rodríguez-Tajes C., Lemasson A., Rejmund M., Schmitt C., Ackermann D., Álvarez-Pol H., Audouin L., Benlliure J., Biswas S., Casarejos E., Clement E., Cortina D., Delaune O., Derkx X., Dijon A., Doré D., Durand D., Frankland J. D., Fernández-Domínguez B., de France G., Fregeau M. O., Galaviz D., Galiana-Baldó E., Heinz A., Henriques A., Jacquot B., Jurado B., Kim Y. H., Morfouace P., Paradela C., Piot J., Ralet D., Roger T., Salsac M. D., Teubig P., and Tsekhanovich I.

Subjects
Physics, QC1-999
Abstract

Nuclear fission is still one of the most complex physical processes due to the interplay between macroscopic and microscopic nuclear properties that decide the output. An example of this coupling is the presence of nuclear dissipation as an important ingredient that contributes to drive the dynamics and has a clear impact on the time of the process. However, different theoretical interpretations and scarce experimental data make it poorly understood. At low excitation energy, the relative yields of fragments even and odd atomic numbers show a clear difference, which can be quantified with the so-called even-odd effect. This seemingly mundane property can be used to obtain information about the energy dissipated during the process and the role of structure in its dynamics. In this paper, the study of the even-odd effect for elasticand transfer-induced fission data is discussed. A clear connection with particular fragment shells and the dissipation energy is found, as detailed in Ref. [1]. In addition, preliminary results from quasi-fission data show the formation of a relatively large even-odd effect, which suggests a process with low dissipation mainly consisting in the exchange of nucleon pairs.

Published
2024
Full Text
View/download PDF

6. Transfer reactions in inverse kinematics, an experimental approach for fission investigations

Author

Rodríguez-Tajes, C., Farget, F., Derkx, X., Caamaño, M., Delaune, O., Schmidt, K. -H., Clément, E., Dijon, A., Heinz, A., Roger, T., Audouin, L., Benlliure, J., Casarejos, E., Cortina, D., Doré, D., Fernández-Domínguez, B., Jacquot, B., Jurado, 1 B., Navin, A., Paradela, C., Ramos, D., Romain, P., Salsac, M. D., and Schmitt, C.

Subjects
Nuclear Experiment
Abstract

Inelastic and multi-nucleon transfer reactions between a $^{238}$U beam, accelerated at 6.14 MeV/u, and a $^{12}$C target were used for the production of neutron-rich, fissioning systems from U to Cm. A Si telescope, devoted to the detection of the target-like nuclei, provided a characterization of the fissioning systems in atomic and mass numbers, as well as in excitation energy. Cross-sections, angular and excitation-energy distributions were measured for the inelastic and transfer channels. Possible excitations of the target-like nuclei were experimentally investigated for the first time, by means of g -ray measurements. The decays from the first excited states of $^{12}$C, $^{11}$B and $^{10}$Be were observed with probabilities of 0.12 - 0.14, while no evidence for the population of higher-lying states was found. Moreover, the fission probabilities of $^{238}$U, $^{239}$Np and $^{240,241,242}$Pu and $^{244}$Cm were determined as a function of the excitation energy., Comment: 16 pages, 12 figures

Published
2013
Full Text
View/download PDF

7. Nuclear astrophysics with radioactive ions at FAIR

Author

Reifarth, R., Altstadt, S., Göbel, K., Heftrich, T., Heil, M., Koloczek, A., Langer, C., Plag, R., Pohl, M., Sonnabend, K., Weigand, M., Adachi, T., Aksouh, F., Al-Khalili, J., AlGarawi, M., AlGhamdi, S., Alkhazov, G., Alkhomashi, N., Alvarez-Pol, H., Alvarez-Rodriguez, R., Andreev, V., Andrei, B., Atar, L., Aumann, T., Avdeichikov, V., Bacri, C., Bagchi, S., Barbieri, C., Beceiro, S., Beck, C., Beinrucker, C., Belier, G., Bemmerer, D., Bendel, M., Benlliure, J., Benzoni, G., Berjillos, R., Bertini, D., Bertulani, C., Bishop, S., Blasi, N., Bloch, T., Blumenfeld, Y., Bonaccorso, A., Boretzky, K., Botvina, A., Boudard, A., Boutachkov, P., Boztosun, I., Bracco, A., Brambilla, S., Monago, J. Briz, Caamano, M., Caesar, C., Camera, F., Casarejos, E., Catford, W., Cederkall, J., Cederwall, B., Chartier, M., Chatillon, A., Cherciu, M., Chulkov, L., Coleman-Smith, P., Cortina-Gil, D., Crespi, F., Crespo, R., Cresswell, J., Csatlós, M., Déchery, F., Davids, B., Davinson, T., Derya, V., Detistov, P., Fernandez, P. Diaz, DiJulio, D., Dmitry, S., Doré, D., Duenas, J., Dupont, E., Egelhof, P., Egorova, I., Elekes, Z., Enders, J., Endres, J., Ershov, S., Ershova, O., Fernandez-Dominguez, B., Fetisov, A., Fiori, E., Fomichev, A., Fonseca, M., Fraile, L., Freer, M., Friese, J., Borge, M. G., Redondo, D. Galaviz, Gannon, S., Garg, U., Gasparic, I., Gasques, L., Gastineau, B., Geissel, H., Gernhäuser, R., Ghosh, T., Gilbert, M., Glorius, J., Golubev, P., Gorshkov, A., Gourishetty, A., Grigorenko, L., Gulyas, J., Haiduc, M., Hammache, F., Harakeh, M., Hass, M., Heine, M., Hennig, A., Henriques, A., Herzberg, R., Holl, M., Ignatov, A., Ignatyuk, A., Ilieva, S., Ivanov, M., Iwasa, N., Jakobsson, B., Johansson, H., Jonson, B., Joshi, P., Junghans, A., Jurado, B., Körner, G., Kalantar, N., Kanungo, R., Kelic-Heil, A., Kezzar, K., Khan, E., Khanzadeev, A., Kiselev, O., Kogimtzis, M., Körper, D., Kräckmann, S., Kröll, T., Krücken, R., Krasznahorkay, A., Kratz, J., Kresan, D., Krings, T., Krumbholz, A., Krupko, S., Kulessa, R., Kumar, S., Kurz, N., Kuzmin, E., Labiche, M., Langanke, K., Lazarus, I., Bleis, T. Le, Lederer, C., Lemasson, A., Lemmon, R., Liberati, V., Litvinov, Y., Löher, B., Herraiz, J. Lopez, Münzenberg, G., Machado, J., Maev, E., Mahata, K., Mancusi, D., Marganiec, J., Perez, M. Martinez, Marusov, V., Mengoni, D., Million, B., Morcelle, V., Moreno, O., Movsesyan, A., Nacher, E., Najafi, M., Nakamura, T., Naqvi, F., Nikolski, E., Nilsson, T., Nociforo, C., Nolan, P., Novatsky, B., Nyman, G., Ornelas, A., Palit, R., Pandit, S., Panin, V., Paradela, C., Parkar, V., Paschalis, S., Pawłowski, P., Perea, A., Pereira, J., Petrache, C., Petri, M., Pickstone, S., Pietralla, N., Pietri, S., Pivovarov, Y., Potlog, P., Prokofiev, A., Rastrepina, G., Rauscher, T., Ribeiro, G., Ricciardi, M., Richter, A., Rigollet, C., Riisager, K., Rios, A., Ritter, C., Frutos, T. Rodríguez, Vignote, J. Rodriguez, Röder, M., Romig, C., Rossi, D., Roussel-Chomaz, P., Rout, P., Roy, S., Söderström, P., Sarkar, M. Saha, Sakuta, S., Salsac, M., Sampson, J., Saez, J. Sanchez del Rio, Rosado, J. Sanchez, Sanjari, S., Sarriguren, P., Sauerwein, A., Savran, D., Scheidenberger, C., Scheit, H., Schmidt, S., Schmitt, C., Schnorrenberger, L., Schrock, P., Schwengner, R., Seddon, D., Sherrill, B., Shrivastava, A., Sidorchuk, S., Silva, J., Simon, H., Simpson, E., Singh, P., Slobodan, D., Sohler, D., Spieker, M., Stach, D., Stan, E., Stanoiu, M., Stepantsov, S., Stevenson, P., Strieder, F., Stuhl, L., Suda, T., Sümmerer, K., Streicher, B., Taieb, J., Takechi, M., Tanihata, I., Taylor, J., Tengblad, O., Ter-Akopian, G., Terashima, S., Teubig, P., Thies, R., Thoennessen, M., Thomas, T., Thornhill, J., Thungstrom, G., Timar, J., Togano, Y., Tomohiro, U., Tornyi, T., Tostevin, J., Townsley, C., Trautmann, W., Trivedi, T., Typel, S., Uberseder, E., Udias, J., Uesaka, T., Uvarov, L., Vajta, Z., Velho, P., Vikhrov, V., Volknandt, M., Volkov, V., von Neumann-Cosel, P., von Schmid, M., Wagner, A., Wamers, F., Weick, H., Wells, D., Westerberg, L., Wieland, O., Wiescher, M., Wimmer, C., Wimmer, K., Winfield, J. S., Winkel, M., Woods, P., Wyss, R., Yakorev, D., Yavor, M., Cardona, J. Zamora, Zartova, I., Zerguerras, T., Zgura, I., Zhdanov, A., Zhukov, M., Zieblinski, M., Zilges, A., and Zuber, K.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Nuclear Experiment
Abstract

The nucleosynthesis of elements beyond iron is dominated by neutron captures in the s and r processes. However, 32 stable, proton-rich isotopes cannot be formed during those processes, because they are shielded from the s-process flow and r-process beta-decay chains. These nuclei are attributed to the p and rp process. For all those processes, current research in nuclear astrophysics addresses the need for more precise reaction data involving radioactive isotopes. Depending on the particular reaction, direct or inverse kinematics, forward or time-reversed direction are investigated to determine or at least to constrain the desired reaction cross sections. The Facility for Antiproton and Ion Research (FAIR) will offer unique, unprecedented opportunities to investigate many of the important reactions. The high yield of radioactive isotopes, even far away from the valley of stability, allows the investigation of isotopes involved in processes as exotic as the r or rp processes., Comment: Invited Talk given at the Conference Nuclear Physice in Astrophysics VI (NPA6), Lisbon, Portugal, May 19-24 2013. To appear in the NPA6 Proceedings in Journal of Physics: Conference Series (JPCS)

Published
2013
Full Text
View/download PDF

9. Les Ardennes, France-Belgique / par Elizé de Montagnac ; avec le concours de Théophile Gautier, H. Taine [et al.] ; dessins par Gustave Doré, D. Lancelot, Riou [et al.]

Author

Doré, Gustave (1832-1883). Illustrateur, Lancelot, Dieudonné Auguste (1822-1894). Illustrateur, Riou, Édouard (1833-1900). Illustrateur, Montagnac, Élizé Louis de (1835-1895). Auteur du texte, Gautier, Théophile (1811-1872). Auteur du texte, Taine, Hippolyte-Adolphe (1828-1893). Auteur du texte, Doré, Gustave (1832-1883). Illustrateur, Lancelot, Dieudonné Auguste (1822-1894). Illustrateur, Riou, Édouard (1833-1900). Illustrateur, Montagnac, Élizé Louis de (1835-1895). Auteur du texte, Gautier, Théophile (1811-1872). Auteur du texte, and Taine, Hippolyte-Adolphe (1828-1893). Auteur du texte

10. Les Ardennes, France-Belgique / par Elizé de Montagnac ; avec le concours de Théophile Gautier, H. Taine [et al.] ; dessins par Gustave Doré, D. Lancelot, Riou [et al.]

Author

Doré, Gustave (1832-1883). Illustrateur, Lancelot, Dieudonné Auguste (1822-1894). Illustrateur, Riou, Édouard (1833-1900). Illustrateur, Montagnac, Élizé Louis de (1835-1895). Auteur du texte, Gautier, Théophile (1811-1872). Auteur du texte, Taine, Hippolyte-Adolphe (1828-1893). Auteur du texte, Doré, Gustave (1832-1883). Illustrateur, Lancelot, Dieudonné Auguste (1822-1894). Illustrateur, Riou, Édouard (1833-1900). Illustrateur, Montagnac, Élizé Louis de (1835-1895). Auteur du texte, Gautier, Théophile (1811-1872). Auteur du texte, and Taine, Hippolyte-Adolphe (1828-1893). Auteur du texte

11. New approach of fragment charge correlations in 129Xe+(nat)Sn central collisions

Author

Charvet, J. L., Dayras, R., Durand, D., Lopez, O., Cussol, D., Dore, D., Nalpas, L., Van Lauwe, A., and Volant, C.

Subjects
Nuclear Experiment
Abstract

A previous analysis of the charge (Z) correlations in the $\Delta Z-$ plane for Xe+Sn central collisions at 32 MeV/u has shown an enhancement in the production of equally sized fragments (low $\Delta Z$) which was interpreted as an evidence for spinodal decomposition. However the signal is weak and rises the question of the estimation of the uncorrelated yield. After a critical analysis of its robustness, we propose in this paper a new technique to build the uncorrelated yield in the charge correlation function. The application of this method to Xe+Sn central collision data at 32, 39, 45 and 50 MeV/u does not show any particular enhancement of the correlation function in any $\Delta Z$ bin., Comment: 23 pages, 9 figures, revised version with an added figure and minor changes. To appear in Nuclear Physics A

Published
2002
Full Text
View/download PDF

12. Transverse Velocity Scaling in Au+Au Fragmentation

Author

Lukasik, J., Hudan, S., Lavaud, F., Turzo, K., Auger, G., Bacri, Ch. O., Begemann-Blaich, M. L., Bellaize, N., Bittiger, R., Bocage, F., Borderie, B., Buchet, P., Bougault, R., Bouriquet, B., Charvet, J. L., Chbihi, A., Dayras, R., Durand, D., Dore, D., Frankland, J. D., Galichet, E., Gourio, D., Guinet, D., Hurst, B., Leduc, C., Lautesse, P., Laville, J. L., Fevre, A. Le, Legrain, R., Lynen, U., Mueller, W. F. J., Lopez, O., Nalpas, L., Orth, H., Plagnol, E., Rosato, E., Saija, A., Tabacaru, G., Sfienti, C., Schwarz, C., Steckmeyer, J. C., Tamain, B., Trautmann, W., Vient, E., Trzcinski, A., Vigilante, M., Volant, C., Zwieglinski, B., and Botvina, A. S.

Subjects
Nuclear Experiment
Abstract

Invariant transverse-velocity spectra of intermediate-mass fragments were measured with the 4-pi multi-detector system INDRA for collisions of Au on Au at incident energies between 40 and 150 MeV per nucleon. Their scaling properties as a function of incident energy and atomic number Z are used to distinguish and characterize the emissions in (i) peripheral collisions at the projectile and target rapidities, and in (ii) central and (iii) peripheral collisions near mid-rapidity. The importance of dynamical effects is evident in all three cases and their origin is discussed., Comment: 4 pages, 3 eps figures, RevTeX4, submitted to Phys. Rev

Published
2002
Full Text
View/download PDF

13. Effect of the intermediate velocity emissions on the quasi-projectile properties for the Ar+Ni system at 95 A.MeV

Author

Dore, D., Buchet, Ph., Charvet, J. L., Dayras, R., Nalpas, L., Cussol, D., Lefort, T., Legrain, R., Volant, C., Auger, G., Bacri, Ch. O., Bellaize, N., Bocage, F., Bougault, R., Bouriquet, B., Brou, R., Chbihi, A., Colin, J., Demeyer, A., Durand, D., Frankland, J. D., Galichet, E., Genouin-Duhamel, E., Gerlic, E., Guinet, D., Hudan, S., Lautesse, P., Lavaud, F., Laville, J. L., Lecolley, J. F., Leduc, C., Neindre, N. Le, Lopez, O., Louvel, M., Maskay, A. M., Normand, J., Parlog, M., Pawlowski, P., Plagnol, E., Rivet, M. F., Rosato, E., Saint-Laurent, F., Steckmeyer, J. C., Stern, M., Tabacaru, G., Tamain, B., Tassan-Got, L., Tirel, O., Vient, E., and Wieleczko, J. P.

Subjects
Nuclear Experiment
Abstract

The quasi-projectile (QP) properties are investigated in the Ar+Ni collisions at 95 A.MeV taking into account the intermediate velocity emission. Indeed, in this reaction, between 52 and 95 A.MeV bombarding energies, the number of particles emitted in the intermediate velocity region is related to the overlap volume between projectile and target. Mean transverse energies of these particles are found particularly high. In this context, the mass of the QP decreases linearly with the impact parameter from peripheral to central collisions whereas its excitation energy increases up to 8 A.MeV. These results are compared to previous analyses assuming a pure binary scenario.

Published
2000
Full Text
View/download PDF

14. Study of intermediate velocity products in the Ar+Ni collisions between 52 and 95 A.MeV

Author

Lefort, T., Dore, D., Cussol, D., Ma, Y. G., and Peter, J.

Subjects
Nuclear Experiment
Abstract

Intermediate velocity products in Ar+Ni collisions from 52 to 95 A.MeV are studied in an experiment performed at the GANIL facility with the 4$\pi$ multidetector INDRA. It is shown that these emissions cannot be explained by statistical decays of the quasi-projectile and the quasi-target in complete equilibrium. Three methods are used to isolate and characterize intermediate velocity products. The total mass of these products increases with the violence of the collision and reaches a large fraction of the system mass in mid-central collisions. This mass is found independent of the incident energy, but strongly dependent on the geometry of the collision. Finally it is shown that the kinematical characteristics of intermediate velocity products are weakly dependent on the experimental impact parameter, but strongly dependent on the incident energy. The observed trends are consistent with a participant-spectator like scenario or with neck emissions and/or break-up., Comment: 37 pages, 13 figures

Published
1999
Full Text
View/download PDF

15. Source size scaling of fragment production in projectile breakup

Author

Beaulieu, L., Bowman, D. R., Fox, D., Gupta, S. Das, Pan, J., Ball, G. C., Djerroud, B., Dore, D., Galindo-Uribarri, A., Guinet, D., Hagberg, E., Horn, D., Laforest, R., Larochelle, Y., Lautesse, P., Samri, M., Roy, R., and St-Pierre, C.

Subjects
Nuclear Experiment
Abstract

Fragment production has been studied as a function of the source mass and excitation energy in peripheral collisions of $^{35}$Cl+$^{197}$Au at 43 MeV/nucleon and $^{70}$Ge+$^{nat}$Ti at 35 MeV/nucleon. The results are compared to the Au+Au data at 600 MeV/nucleon obtained by the ALADIN collaboration. A mass scaling, by $A_{source} \sim$ 35 to 190, strongly correlated to excitation energy per nucleon, is presented, suggesting a thermal fragment production mechanism. Comparisons to a standard sequential decay model and the lattice-gas model are made. Fragment emission from a hot, rotating source is unable to reproduce the experimental source size scaling., Comment: 13 pages LaTeX file, including 3 postscript figures (in .tar.gz fornmat), accepted in Phys. Rev. C . Also available at http://thomson.phy.ulaval.ca/ions_lourds/gil-en.html

Published
1996
Full Text
View/download PDF

16. Experimental evidence of the effect of nuclear shells on fission dissipation and time

Author

Ramos, D., primary, Caamaño, M., additional, Farget, F., additional, Rodríguez-Tajes, C., additional, Lemasson, A., additional, Schmitt, C., additional, Audouin, L., additional, Benlliure, J., additional, Casarejos, E., additional, Clement, E., additional, Cortina, D., additional, Delaune, O., additional, Derkx, X., additional, Dijon, A., additional, Doré, D., additional, Fernández-Domínguez, B., additional, de France, G., additional, Heinz, A., additional, Jacquot, B., additional, Paradela, C., additional, Rejmund, M., additional, Roger, T., additional, and Salsac, M.-D., additional

Published
2023
Full Text
View/download PDF

19. Performance validation of the first arm of FALSTAFF: 252Cf and 235U fission fragment characterisation

Author

Doré D., Berthoumieux E., Deshayes Q., Thulliez L., Legou P., Combet M., Kebbiri M., Marcel A., Mols J-Ph., Frégeau M.O., Herlant S., Ledoux X., Pancin J., and Oberstedt S.

Subjects
Physics, QC1-999
Abstract

The renewed interest for the study of nuclear fission is mainly motivated by the development of GEN-IV reactor concepts, mostly foreseen to operate in the fast neutron energy domain. To support this development, new high-quality nuclear data are needed. In this context, a new experimental setup, the FALSTAFF spectrometer, dedicated to the study of nuclear fission is under development. Employing the double-velocity (2V) and energy-velocity (EV) methods, the fission fragment mass before and after neutron evaporation will be deduced and the correlation between prompt neutron multiplicity and fragment mass will be determined. The first arm of the spectrometer is achieved. It is composed of two SED-MWPC detectors (a combination of a foil to produce secondary electrons and a Multi-Wire Proportional Chamber to detect them) and an axial ionization chamber. The SED-MWPC give access to the velocity (V) via time-of-flight and position measurements. The ionization chamber measures the fragment kinetic energy (E) and the energy loss profile. Preliminary results for spontaneous fission of 252Cf and from the thermal-neutron induced fission experiment on 235U, performed at the Orphée reactor (CEA-Saclay, France), are presented.

Published
2019
Full Text
View/download PDF

20. Isotopic Distributions of Fission Fragments from Transfer-induced Fission

Author

Rodríguez-Tajes, C., Caamaño, M., Delaune, O., Farget, F., Audouin, L., Bacri, C.-O., Benlliure, J., Casarejos, E., Clement, E., Cortina, D., Derkx, X., Dijon, A., Doré, D., Fernández-Domínguez, B., Gaudefroy, L., Golabek, C., Heinz, A., Jurado, B., Lemasson, A., Navin, A., Paradela, C., Ramos, D., Roger, T., Salsac, M.D., Schmitt, C., Schmidt, K.-H., Shrivastava, A., and Taieb, J.

Published
2013
Full Text
View/download PDF

21. Multifragmentation in Heavy Ion Reactions : Dynamical Effects and Thermalization

Author

Plagnol, E., Bacri, C. O., Borderie, B., Frankland, J., Rivet, M. F., Tassan-Got, L., Auger, G., Chbihi, A., Laville, J. L., Le Fevre, A., Salou, S., Tirel, O., Saint-Laurent, F., Wieleczko, J. P., Buchet, Ph., Charvet, J. L., Dayras, R., Dore, D., Legrain, R., Nalpas, L., Volant, C., Bocage, F., Bougault, R., Brou, R., Colin, J., Cussol, D., Durand, D., Genouin-Duhamel, E., Lecolley, J. F., Lefort, T., Le Neindre, N., Lopez, O., Louvel, M., Nguyen, A. D., Peter, J., Steckmeyer, J. C., Tamain, B., Vient, E., Demeyer, A., Galichet, E., Gerlic, E., Guinet, D., Lautesse, P., Maskay, A. M., Stern, M., Rosato, E., Parlog, M., Tabacaru, G., Assenard, M., Eudes, P., Germain, M., Rahmani, A., Reposeur, T., Van Der Merwe, Alwyn, editor, Blaizot, Jean-Paul, editor, Campi, Xavier, editor, and Ploszajczak, Marek, editor

Published
1999
Full Text
View/download PDF

23. Apparent Temperatures in Hot Quasi-Projectiles and the Caloric Curve

Author

Péter, J., Assenard, M., Gulminelli, F., Ma, Y.-G., Siwek, A., Auger, G., Bacri, Ch. O., Benlliure, J., Bisquer, E., Bocage, F., Borderie, B., Bougault, R., Brou, R., Buchet, P., Charvet, J. L., Chbihi, A., Colin, J., Cussol, D., Dayras, R., De Filippo, E., Demeyer, A., Doré, D., Durand, D., Eudes, P., Frankland, J. D., Galichet, E., Genouin-Duhamel, E., Gerlic, E., Germain, M., Gourio, D., Guinet, D., Lautesse, P., Laville, J. L., Lecolley, J. F., Le Fèvre, A., Lefort, T., Legrain, R., Lopez, O., Louvel, M., Marie, N., Métivier, V., Nalpas, L., Nguyen, A. D., Parlog, M., Plagnol, E., Politi, O., Rahmani, A., Reposeur, T., Rivet, M. F., Rosato, E., Saint-Laurent, F., Salou, S., Steckmeyer, J. C., Stern, M., Tabacaru, G., Tamain, B., Tassan-Got, L., Tirel, O., Vient, E., Volant, C., Wieleczko, J. P., Bauer, Wolfgang, editor, and Mignerey, Alice, editor

Published
1997
Full Text
View/download PDF

24. Recent developments of the FALSTAFF experimental setup

Author

Chietera A., Thulliez L., Berthoumieux E., Doré D., Letourneau A., Legou P., Kebbiri M., Piret Y., Mols J.P., Combet M., Riallot M., Marcel A., Pancin J., Frégeau M. O., Ledoux X., Lecolley F. R., Perronnel J., and Goupillere D.

Subjects
Physics, QC1-999
Abstract

The study of nuclear fission is encountering renewed interest with the development of GEN-IV reactor concepts, mostly working in the neutron fast energy domain. To support the fast reactor technologies, new high quality nuclear data are needed. New facilities are being constructed to produce high intensity neutron beams from hundreds of keV to few tens of MeV (Licorne, NFS, nELBE, ...). They will open new opportunities to provide nuclear data. In this framework the development of an experimental setup called FALSTAFF for a characterisation of actinide fission fragments has been undertaken. Fission fragment yields and associated neutron multiplicities will be measured as a function of the neutron energy. Based on time-of-flight and residual energy technique, the setup will allow the simultaneous measurement of the complementary fragment velocity and energy. The FALSTAFF setup and the upgrade of the first arm prototype with the new ionisation chamber CALIBER will be presented. The performances of the experimental apparatus is discussed.

Published
2018
Full Text
View/download PDF

27. The electron–ion scattering experiment ELISe at the International Facility for Antiproton and Ion Research (FAIR)—A conceptual design study

Author

Antonov, A.N., Gaidarov, M.K., Ivanov, M.V., Kadrev, D.N., Aïche, M., Barreau, G., Czajkowski, S., Jurado, B., Belier, G., Chatillon, A., Granier, T., Taieb, J., Doré, D., Letourneau, A., Ridikas, D., Dupont, E., Berthoumieux, E., Panebianco, S., Farget, F., Schmitt, C., Audouin, L., Khan, E., Tassan-Got, L., Aumann, T., Beller, P., Boretzky, K., Dolinskii, A., Egelhof, P., Emling, H., Franzke, B., Geissel, H., Kelic-Heil, A., Kester, O., Kurz, N., Litvinov, Y., Münzenberg, G., Nolden, F., Schmidt, K.-H., Scheidenberger, Ch., Simon, H., Steck, M., Weick, H., Enders, J., Pietralla, N., Richter, A., Schrieder, G., Zilges, A., Distler, M.O., Merkel, H., Müller, U., Junghans, A.R., Lenske, H., Fujiwara, M., Suda, T., Kato, S., Adachi, T., Hamieh, S., Harakeh, M.N., Kalantar-Nayestanaki, N., Wörtche, H., Berg, G.P.A., Koop, I.A., Logatchov, P.V., Otboev, A.V., Parkhomchuk, V.V., Shatilov, D.N., Shatunov, P.Y., Shatunov, Y.M., Shiyankov, S.V., Shvartz, D.I., Skrinsky, A.N., Chulkov, L.V., Danilin, B.V., Korsheninnikov, A.A., Kuzmin, E.A., Ogloblin, A.A., Volkov, V.A., Grishkin, Y., Lisin, V.P., Mushkarenkov, A.N., Nedorezov, V., Polonski, A.L., Rudnev, N.V., Turinge, A.A., Artukh, A., Avdeichikov, V., Ershov, S.N., Fomichev, A., Golovkov, M., Gorshkov, A.V., Grigorenko, L., Klygin, S., Krupko, S., Meshkov, I.N., Rodin, A., Sereda, Y., Seleznev, I., Sidorchuk, S., Syresin, E., Stepantsov, S., Ter-Akopian, G., Teterev, Y., Vorontsov, A.N., Kamerdzhiev, S.P., Litvinova, E.V., Karataglidis, S., Alvarez Rodriguez, R., Borge, M.J.G., Fernandez Ramirez, C., Garrido, E., Sarriguren, P., Vignote, J.R., Fraile Prieto, L.M., Lopez Herraiz, J., Moya de Guerra, E., Udias-Moinelo, J., Amaro Soriano, J.E., Lallena Rojo, A.M., Caballero, J.A., Johansson, H.T., Jonson, B., Nilsson, T., Nyman, G., Zhukov, M., Golubev, P., Rudolph, D., Hencken, K., Jourdan, J., Krusche, B., Rauscher, T., Kiselev, D., Trautmann, D., Al-Khalili, J., Catford, W., Johnson, R., Stevenson, P.D., Barton, C., Jenkins, D., Lemmon, R., Chartier, M., Cullen, D., Bertulani, C.A., and Heinz, A.

Published
2011
Full Text
View/download PDF

29. 237Np absolute delayed neutron yield measurements

Author

Doré D., Ledoux X., Nolte R., Gagnon-Moisan F., Thulliez L., Litaize O., Roettger S., and Serot O.

Subjects
Physics, QC1-999
Abstract

237Np absolute delayed neutron yields have been measured at different incident neutron energies from 1.5 to 16 MeV. The experiment was performed at the Physikalisch-Technische Bundesanstalt (PTB) facility where the Van de Graaff accelerator and the cyclotron CV28 delivered 9 different neutron energy beams using p+T, d+D and d+T reactions. The detection system is made up of twelve 3He tubes inserted into a polyethylene cylinder. In this paper, the experimental setup and the data analysis method are described. The evolution of the absolute DN yields as a function of the neutron incident beam energies are presented and compared to experimental data found in the literature and data from the libraries.

Published
2017
Full Text
View/download PDF

30. Impact of material thicknesses on fission observables obtained with the FALSTAFF experimental setup

Author

Thulliez L., Doré D., Berthoumieux E., Panebianco S., Legou P., Kebbiri M., Piret Y., Mols J.P., Combet M., Riallot M., Marcel A., Farget F., Pancin J., Frégeau M.O., Ledoux X., Lecolley F.-R., Perronnel J., Goupillère D., and Oberstedt S.

Subjects
Physics, QC1-999
Abstract

In the past years, the fission studies have been mainly focused on thermal fission because most of the current nuclear reactors work in this energy domain. With the development of GEN-IV reactor concepts, mainly working in the fast energy domain, new nuclear data are needed. The FALSTAFF spectrometer under development at CEA-Saclay, France, is a two-arm spectrometer which will provide mass yields before (2V method) and after (EV method) neutron evaporation and consequently will have access to the neutron multiplicity as a function of mass. The axial ionization chamber, in addition to the kinetic energy value, will measure the energy loss profile of the fragment along its track. This energy loss profile will give information about the fragment nuclear charge. This paper will focus on recent developments on the FALSTAFF design. A special attention will be paid to the impact of the detector material thickness on the uncertainty of different observables.

Published
2017
Full Text
View/download PDF

31. Excitation-energy influence at the scission configuration

Author

Ramos D., Rodríguez-Tajes C., Caamaño M., Farget F., Audouin L., Benlliure J., Casarejos E., Clement E., Cortina D., Delaune O., Derkx X., Dijon A., Doré D., Fernández-Domínguez B., de France G., Heinz A., Jacquot B., Navin A., Paradela C., Rejmund M., Roger T., Salsac M.-D., and Schmitt C.

Subjects
Physics, QC1-999
Abstract

Transfer- and fusion-induced fission in inverse kinematics was proven to be a powerful tool to investigate nuclear fission, widening the information of the fission fragments and the access to unstable fissioning systems with respect to other experimental approaches. An experimental campaign for fission investigation has being carried out at GANIL with this technique since 2008. In these experiments, a beam of 238U, accelerated to 6.1 MeV/u, impinges on a 12C target. Fissioning systems from U to Cf are populated through transfer and fusion reactions, with excitation energies that range from few MeV up to 46 MeV. The use of inverse kinematics, the SPIDER telescope, and the VAMOS spectrometer permitted the characterization of the fissioning system in terms of mass, nuclear charge, and excitation energy, and the isotopic identification of the full fragment distribution. The neutron excess, the total neutron multiplicity, and the even-odd staggering in the nuclear charge of fission fragments are presented as a function of the excitation energy of the fissioning system. Structure effects are observed at Z∼50 and Z∼55, where their impact evolves with the excitation energy.

Published
2017
Full Text
View/download PDF

32. The neutrons for science facility at SPIRAL-2

Author

Ledoux X., Aïche M., Avrigeanu M., Avrigeanu V., Balanzat E., Ban-d'Etat B., Ban G., Bauge E., Bélier G., Bém P., Borcea C., Caillaud T., Chatillon A., Czajkowski S., Dessagne P., Doré D., Fischer U., Frégeau M.O., Grinyer J., Guillous S., Gunsing F., Gustavsson C., Henning G., Jacquot B., Jansson K., Jurado B., Kerveno M., Klix A., Landoas O., Lecolley F.R., Lecouey J.L., Majerle M., Marie N., Materna T., Mrázek J., Negoita F., Novák J., Oberstedt S., Oberstedt A., Panebianco S., Perrot L., Plompen A.J.M., Pomp S., Prokofiev A.V., Ramillon J.M., Farget F., Ridikas D., Rossé B., Sérot O., Simakov S.P., Šimečková E., Štefánik M., Sublet J.C., Taïeb J., Tarrío D., Tassan-Got L., Thfoin I., and Varignon C.

Subjects
Physics, QC1-999
Abstract

Numerous domains, in fundamental research as well as in applications, require the study of reactions induced by neutrons with energies from few MeV up to few tens of MeV. Reliable measurements also are necessary to improve the evaluated databases used by nuclear transport codes. This energy range covers a large number of topics like transmutation of nuclear waste, design of future fission and fusion reactors, nuclear medicine or test and development of new detectors. A new facility called Neutrons For Science (NFS) is being built for this purpose on the GANIL site at Caen (France). NFS is composed of a pulsed neutron beam for time-of-flight facility as well as irradiation stations for cross-section measurements. Neutrons will be produced by the interaction of deuteron and proton beams, delivered by the SPIRAL-2 linear accelerator, with thick or thin converters made of beryllium or lithium. Continuous and quasi-mono-energetic spectra will be available at NFS up to 40 MeV. In this fast energy region, the neutron flux is expected to be up to 2 orders of magnitude higher than at other existing time-of-flight facilities. In addition, irradiation stations for neutron-, proton- and deuteron-induced reactions will allow performing cross-section measurements by the activation technique. After a description of the facility and its characteristics, the experiments to be performed in the short and medium term will be presented.

Published
2017
Full Text
View/download PDF

36. Dependence of Fission-Fragment Properties On Excitation Energy For Neutron-Rich Actinides

Author

Ramos D., Rodríguez-Tajes C., Caamaño M., Farget F., Audouin L., Benlliure J., Casarejos E., Clement E., Cortina D., Delaune O., Derkx X., Dijon A., Doré D., Fernández-Domínguez B., de France G., Heinz A., Jacquot B., Navin A., Paradela C., Rejmund M., Roger T., Salsac M.D., and Schmitt C.

Subjects
Physics, QC1-999
Abstract

Experimental access to full isotopic fragment distributions is very important to determine the features of the fission process. However, the isotopic identification of fission fragments has been, in the past, partial and scarce. A solution based on the use of inverse kinematics to study transfer-induced fission of exotic actinides was carried out at GANIL, resulting in the first experiment accessing the full identification of a collection of fissioning systems and their corresponding fission fragment distribution. In these experiments, a 238U beam at 6.14 AMeV impinged on a carbon target to produce fissioning systems from U to Am by transfer reactions, and Cf by fusion reactions. Isotopic fission yields of 250Cf, 244Cm, 240Pu, 239Np and 238U are presented in this work. With this information, the average number of neutrons as a function of the atomic number of the fragments is calculated, which reflects the impact of nuclear structure around Z=50, N=80 on the production of fission fragments. The characteristics of the Super Long, Standard I, Standard II, and Standard III fission channels were extracted from fits of the fragment yields for different ranges of excitation energy. The position and contribution of the fission channels as function of excitation energy are presented.

Published
2016
Full Text
View/download PDF

37. Deeply virtual and exclusive electroproduction of ω-mesons

Author

Morand, L., Doré, D., Garçon, M., Guidal, M., Laget, J. -M., Morrow, S., Sabatié, F., Smith, E., Adams, G., Ambrozewicz, P., Anghinolfi, M., Asryan, G., Audit, G., Avakian, H., Bagdasaryan, H., Ball, J., Ball, J. P., Baltzell, N. A., Barrow, S., Batourine, V., Battaglieri, M., Bektasoglu, M., Bellis, M., Benmouna, N., Berman, B. L., Biselli, A. S., Boiarinov, S., Bonner, B. E., Bouchigny, S., Bradford, R., Branford, D., Briscoe, W. J., Brooks, W. K., Bültmann, S., Burkert, V. D., Butuceanu, C., Calarco, J. R., Careccia, S. L., Carman, D. S., Cazes, A., Chen, S., Cole, P. L., Cords, D., Corvisiero, P., Crabb, D., Cummings, J. P., De Sanctis, E., DeVita, R., Degtyarenko, P. V., Denizli, H., Dennis, L., Deur, A., Dharmawardane, K. V., Dhuga, K. S., Djalali, C., Dodge, G. E., Donnelly, J., Doughty, D., Dugger, M., Dytman, S., Dzyubak, O. P., Egiyan, H., Egiyan, K. S., Elouadrhiri, L., Eugenio, P., Fatemi, R., Feldman, G., Fersch, R. G., Feuerbach, R. J., Funsten, H., Gavalian, G., Gilfoyle, G. P., Giovanetti, K. L., Girod, F. -X., Goetz, J. T., Gordon, C. I. O., Gothe, R. W., Griffioen, K. A., Guillo, M., Guler, N., Guo, L., Gyurjyan, V., Hadjidakis, C., Hakobyan, R. S., Hardie, J., Heddle, D., Hersman, F. W., Hicks, K., Hleiqawi, I., Holtrop, M., Hyde-Wright, C. E., Ilieva, Y., Ireland, D. G., Ito, M. M., Jenkins, D., Jo, H. -S., Joo, K., Juengst, H. G., Kellie, J. D., Khandaker, M., Kim, W., Klein, A., Klein, F. J., Klimenko, A. V., Kossov, M., Kubarovski, V., Kramer, L. H., Kuhn, S. E., Kuhn, J., Lachniet, J., Langheinrich, J., Lawrence, D., Lee, T., Li, Ji, Livingston, K., Marchand, C., Maximon, L. C., McAleer, S., McKinnon, B., McNabb, J. W. C., Mecking, B. A., Mehrabyan, S., Melone, J. J., Mestayer, M. D., Meyer, C. A., Mikhailov, K., Minehart, R., Mirazita, M., Miskimen, R., Mokeev, V., Mueller, J., Mutchler, G. S., Napolitano, J., Nasseripour, R., Niccolai, S., Niculescu, G., Niculescu, I., Niczyporuk, B. B., Niyazov, R. A., Nozar, M., O’Rielly, G. V., Osipenko, M., Ostrovidov, A. I., Park, K., Pasyuk, E., Philips, S. A., Pivnyuk, N., Pocanic, D., Pogorelko, O., Polli, E., Popa, I., Pozdniakov, S., Preedom, B. M., Price, J. W., Prok, Y., Protopopescu, D., Raue, B. A., Riccardi, G., Ricco, G., Ripani, M., Ritchie, B. G., Ronchetti, F., Rosner, G., Rossi, P., Rubin, P. D., Salgado, C., Santoro, J. P., Sapunenko, V., Schumacher, R. A., Serov, V. S., Sharabian, Y. G., Shaw, J., Skabelin, A. V., Smith, L. C., Sober, D. I., Stavinsky, A., Stepanyan, S., Stepanyan, S. S., Stokes, B. E., Stoler, P., Strakovsky, I. I., Strauch, S., Taiuti, M., Tedeschi, D. J., Thoma, U., Tkabladze, A., Todor, L., Tur, C., Ungaro, M., Vineyard, M. F., Vlassov, A. V., Weinstein, L. B., Weygand, D. P., Williams, M., Wolin, E., Wood, M. H., Yegneswaran, A., Zana, L., and The CLAS Collaboration

Published
2005
Full Text
View/download PDF

38. Prompt light particle emission in the 36Ar + 58Ni reaction at 95 MeV/nucleon

Author

Pawłowski, P., Borderie, B., Auger, G., Bacri, Ch.O., Bellaize, N., Bocage, F., Bougault, R., Brou, R., Buchet, P., Charvet, J.L., Chbihi, A., Colin, J., Cussol, D., Dayras, R., Demeyer, A., Doré, D., Durand, D., Frankland, J.D., Galichet, E., Genouin-Duhamel, E., Gerlic, E., Guinet, D., Lautesse, P., Laville, J.L., Lecolley, J.F., Legrain, R., Le Neindre, N., Lopez, O., Louvel, M., Maskay, A.M., Nalpas, L., Nguyen, A.D., Pârlog, M., Péter, J., Plagnol, E., Rivet, M.F., Rosato, E., Saint-Laurent, F., Salou, S., Steckmeyer, J.C., Stern, M., Tăbăcaru, G., Tamain, B., Tassan-Got, L., Tirel, O., Vient, E., Volant, C., Wieleczko, J.P., and (INDRA Collaboration)

Published
2000
Full Text
View/download PDF

40. Reply

Author

Doré, D., Winzenberg, T., Ding, C., Cicuttini, F., and Jones, G.

Published
2010

41. Intranuclear cascade+percolation+evaporation model applied to the 12C+ 197Au system at 1 GeV/nucleon

Author

Volant, C., Turzo´, K., Trautmann, W., Auger, G., Begemann-Blaich, M.-L., Bittiger, R., Borderie, B., Botvina, A.S., Bougault, R., Bouriquet, B., Charvet, J.-L., Chbihi, A., Dayras, R., Dore´, D., Durand, D., Frankland, J.D., Galichet, E., Gourio, D., Guinet, D., Hudan, S., Imme´, G., Lautesse, Ph., Lavaud, F., Le Fe`vre, A., Lopez, O., Łukasik, J., Lynen, U., Mu¨ller, W.F.J., Nalpas, L., Orth, H., Plagnol, E., Raciti, G., Rosato, E., Saija, A., Schwarz, C., Seidel, W., Sfienti, C., Steckmeyer, J.C., Tamain, B., Trzcin´ski, A., Vient, E., Vigilante, M., and Zwieglin´ski, B.

Published
2004
Full Text
View/download PDF

42. Fission Fragment characterization with FALSTAFF at NFS

Author

Pancin J., Materna T., Lehaut G., Ledoux X., Lecolley F.-R., Farget F., Doré D., and Panebianco S.

Subjects
Physics, QC1-999
Abstract

The Neutrons for Science (NFS) facility will be one of the first installations of the SPIRAL2 facility. NFS will be composed of a time-of-flight baseline and irradiation stations and will allow studying neutron-induced reactions for energies going from some hundreds of keV up to 40 MeV. Continuous and quasi-monoenergetic energy neutron beams will be available. Taking advantage of this new installation, the development of an experimental setup for a full characterization of actinide fission fragments in this energy domain has been undertaken. To achieve this goal a new detection system called FALSTAFF (Four Arm cLover for the STudy of Actinide Fission Fragments) in under development. In this paper, the characteristics of the NFS facility will be exposed and the motivations for the FALSTAFF experiment will be presented. The experimental setup will be described and the expected resolutions based on realistic GEANT4 simulations will be discussed.

Published
2013
Full Text
View/download PDF

43. Energy calibration for the INDRA multidetector using recoil protons from [formula omitted] scattering

Author

Trzciński, A., Łukasik, J., Müller, W.F.J., Trautmann, W., Zwiegliński, B., Auger, G., Bacri, Ch.O., Begemann-Blaich, M.L., Bellaize, N., Bittiger, R., Bocage, F., Borderie, B., Bougault, R., Bouriquet, B., Buchet, Ph., Charvet, J.L., Chbihi, A., Dayras, R., Doré, D., Durand, D., Frankland, J.D., Galichet, E., Gourio, D., Guinet, D., Hudan, S., Hurst, B., Lautesse, P., Lavaud, F., Laville, J.L., Leduc, C., Le Fèvre, A., Legrain, R., Lopez, O., Lynen, U., Nalpas, L., Orth, H., Plagnol, E., Rosato, E., Saija, A., Schwarz, C., Sfienti, C., Steckmeyer, J.C., Tǎbǎcaru, G., Tamain, B., Turzó, K., Vient, E., Vigilante, M., and Volant, C.

Published
2003
Full Text
View/download PDF

44. Isotopic fission-fragment distributions of $^{238}$U, $^{239}$Np, $^{240}$Pu, $^{244}$Cm , and $^{250}$Cf produced through inelastic scattering, transfer, and fusion reactions in inverse kinematics

Author

Ramos, D., Caamaño, M., Farget, F., Rodriguez-Tajes, C., Audouin, L., Benlliure, J., Casarejos, E., Clement, E., Cortina, D., Delaune, O., Derkx, X., Dijon, A., Doré, D., Fernández-Domínguez, B., De France, G., Heinz, A., Jacquot, B., Navin, A., Paradela, C., Rejmund, M., Roger, T., Salsac, M.D., Schmitt, C., 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), Institut de Physique Nucléaire d'Orsay (IPNO), 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), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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, 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), and Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

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

International audience; Transfer- and fusion-induced fission in inverse kinematics has proved to be a powerful tool to investigate nuclear fission, widening information on the fission fragments and access to unstable fissioning systems with respect to other experimental approaches. An experimental campaign is being carried out at GANIL with this technique since 2008. In these experiments, a beam of U238, accelerated to 6.1 MeV/u, impinges on a C12 target. Fissioning systems from U to Cf are populated through inelastic scattering, transfer, and fusion reactions, with excitation energies that range from a few MeV up to 46 MeV. The use of inverse kinematics, the SPIDER telescope, and the VAMOS spectrometer allow the characterization of the fissioning system in terms of mass, nuclear charge, and excitation energy, and the isotopic identification of the full fragment distribution. This work reports on new data from the second experiment of the campaign on fission-fragment yields of the heavy actinides U238, Np239, Pu240, Cm244, and Cf250, which are of interest from both fundamental and application points of view.

Published
2018

45. Insight into excitation energy and structure effects in fission from isotopic information in fission yields

Author

Ramos, D., primary, Caamaño, M., additional, Farget, F., additional, Rodríguez-Tajes, C., additional, Audouin, L., additional, Benlliure, J., additional, Casarejos, E., additional, Clement, E., additional, Cortina, D., additional, Delaune, O., additional, Derkx, X., additional, Dijon, A., additional, Doré, D., additional, Fernández-Domínguez, B., additional, de France, G., additional, Heinz, A., additional, Jacquot, B., additional, Paradela, C., additional, Rejmund, M., additional, Roger, T., additional, Salsac, M.-D., additional, and Schmitt, C., additional

Published
2019
Full Text
View/download PDF

46. Delayed neutron measurements for 232Th neutron-induced fission

Author

Doré D., Ledoux X., Mosconi M., Nolte R., and Roettger S.

Subjects
Physics, QC1-999
Abstract

Delayed neutrons (DN) play an important role in nuclear reactor physics. Innovative critical reactor studies bring to light the need of new DN yields data. For the Th fuel cycle, according to the OECD recommendation, DN of the 232Th is needed with an accuracy of 5%. In the literature, significant discrepancies were observed for energies below 4 MeV and data are dispersed around 14 MeV. Therefore, a programme has been undertaken by CEA in order to measure DN yields from 232Th with incident neutron energies from 2 to 16 MeV. In this paper, the experimental setup will be described and preliminary results obtained at the PTB Ion Accelerator Facility of Braunschweig for incident neutron beam energies of 2, 3, 4, 6, 7, 10 and 16 MeV will be presented.

Published
2010
Full Text
View/download PDF

47. Direct measurement of the inelastic neutron acceleration by 177mLu

Author

Menelle A., Letourneau A., Doré D., Daugas J.-M., Morel P., Rossé B., Roig O., and Méot V.

Subjects
Physics, QC1-999
Abstract

The inelastic neutron acceleration (INNA) cross section on the long-lived isomer state of 177mLu has been measured from a new isomeric target using a direct method. The detection of high energy neutrons has been performed using a specially designed setup and a cold neutron beam at the ORPHEE reactor facility in Saclay.

Published
2010
Full Text
View/download PDF

48. Multifragmentation process for different mass asymmetry in the entrance channel around the Fermi energy

Author

Bellaize, N., Lopez, O., Wieleczko, J.P., Cussol, D., Auger, G., Bacri, Ch.O., Bocage, F., Borderie, B., Bougault, R., Bouriquet, B., Brou, R., Buchet, P., Buta, A.M., Charvet, J.L., Chbihi, A., Colin, J., Dayras, R., De Cesare, N., Demeyer, A., Doré, D., Durand, D., Frankland, J.D., Galichet, E., Genouin-Duhamel, E., Gerlic, E., Guiot, B., Guinet, D., Hudan, S., Lanzalone, G., Lautesse, P., Lavaud, F., Laville, J.L., Lecolley, J.F., Legrain, R., Le Neindre, N., Manduci, L., Marie, J., Nalpas, L., Normand, J., Pârlog, M., Pawłowski, P., Plagnol, E., Rivet, M.F., Rosato, E., Roy, R., Saint-Laurent, F., Steckmeyer, J.C., Tăbăcaru, G., Tamain, B., van Lauwe, E., Tassan-Got, L., Vient, E., Vigilante, M., and Volant, C.

Published
2002
Full Text
View/download PDF

49. Can we really measure the internal energy of hot nuclei with a 4 π detection array?

Author

Vient, E., Genouin-Duhamel, E., Steckmeyer, J.C., Auger, G., Bacri, C.O., Bellaize, N., Borderie, B., Bougault, R., Bouriquet, B., Buta, A.M., Charvet, J.L., Chbihi, A., Colin, J., Cussol, D., Dayras, R., Demeyer, A., Doré, D., Durand, D., Frankland, J.D., Galichet, E., Gerlic, E., Guinet, D., Guiot, B., Hudan, S., Lautesse, P., Lavaud, F., Laville, J.L., Lecolley, J.F., Legrain, R., Le Neindre, N., Lopez, O., Louvel, M., Nalpas, L., Normand, J., Pârlog, M., Pawłowski, P., Plagnol, E., Rivet, M.F., Rosato, E., Tăbăcaru, G., Tamain, B., Tassan-Got, L., Turzo, K., Volant, C., and Wieleczko, J.P.

Published
2002
Full Text
View/download PDF

50. Response of CsI(Tl) scintillators over a large range in energy and atomic number of ions. Part II: calibration and identification in the INDRA array

Author

Pârlog, M., Borderie, B., Rivet, M.F., Tăbăcaru, G., Chbihi, A., Elouardi, M., Le Neindre, N., Lopez, O., Plagnol, E., Tassan-Got, L., Auger, G., Bacri, Ch.O., Bellaize, N., Bocage, F., Bougault, R., Bouriquet, B., Brou, R., Buchet, P., Charvet, J.L., Colin, J., Cussol, D., Dayras, R., Demeyer, A., Doré, D., Durand, D., Frankland, J.D., Galichet, E., Genouin-Duhamel, E., Gerlic, E., Hudan, S., Guinet, D., Lautesse, P., Lavaud, F., Laville, J.L., Lecolley, J.F., Leduc, C., Legrain, R., Louvel, M., Maskay, A.M., Nalpas, L., Normand, J., Péter, J., Rosato, E., Saint-Laurent, F., Steckmeyer, J.C., Tamain, B., Tirel, O., Vient, E., Volant, C., and Wieleczko, J.P.

Published
2002
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results