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239 results on '"Kratz, J.V."'

1. Gas Phase Chromatography of Halides of Elements 104 and 105

Author

Turler, A., Gaggeler, H.W., Gregorich, K.E., Barth, H., Bruchle, W., Czerwinski, K.R., Gober, M.K., Hannink, N.J., Henderson, R.A., Hoffman, D.C., Jost, D.T., Kacher, C.D., Kadkhodayan, B., Kovacs, J., Kratz, J.V., Kreek, S.A., Lee, D.M., Leyba, J.D., Nurmia, M.J., Schadel, M., Scherer, U.W., Schimpf, E., Vermeulen, D., Weber, A., Zimmermann, H.P., and Zvara, I.

Published
1991

2. On the adsorption and reactivity of element 114, flerovium

Author

Yakushev, A., primary, Lens, L., additional, Düllmann, Ch. E., additional, Khuyagbaatar, J., additional, Jäger, E., additional, Krier, J., additional, Runke, J., additional, Albers, H. M., additional, Asai, M., additional, Block, M., additional, Despotopulos, J., additional, Di Nitto, A., additional, Eberhardt, K., additional, Forsberg, U., additional, Golubev, P., additional, Götz, M., additional, Götz, S., additional, Haba, H., additional, Harkness-Brennan, L., additional, Herzberg, R.-D., additional, Heßberger, F. P., additional, Hinde, D., additional, Hübner, A., additional, Judson, D., additional, Kindler, B., additional, Komori, Y., additional, Konki, J., additional, Kratz, J.V., additional, Kurz, N., additional, Laatiaoui, M., additional, Lahiri, S., additional, Lommel, B., additional, Maiti, M., additional, Mistry, A. K., additional, Mokry, Ch., additional, Moody, K. J., additional, Nagame, Y., additional, Omtvedt, J. P., additional, Papadakis, P., additional, Pershina, V., additional, Rudolph, D., additional, Samiento, L.G., additional, Sato, T.K., additional, Schädel, M., additional, Scharrer, P., additional, Schausten, B., additional, Shaughnessy, D. A., additional, Steiner, J., additional, Thörle-Pospiech, P., additional, Toyoshima, A., additional, Trautmann, N., additional, Tsukada, K., additional, Uusitalo, J., additional, Voss, K.-O., additional, Ward, A., additional, Wegrzecki, M., additional, Wiehl, N., additional, Williams, E., additional, and Yakusheva, V., additional

Published
2022
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3. Measurement of the first ionization potential of lawrencium, element 103

Author

Sato, T.K., Asai, M., Borschevsky, A., Stora, T., Sato, N., Kaneya, Y., Tsukada, K., Dullmann, Ch. E., Eberhardt, K., Eliav, E., Ichikawa, S., Kaldor, U., Kratz, J.V., Miyashita, S., Nagame, Y., Ooe, K., Osa, A., Renisch, D., Runke, J., Schadel, M., Thorle-Pospiech, P., Toyoshima, A., and Trautmann, N.

Subjects
Ionization -- Chemical properties -- Measurement, Lawrencium -- Chemical properties, Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

The chemical properties of an element are primarily governed by the configuration of electrons in the valence shell. Relativistic effects influence the electronic structure of heavy elements in the sixth row of the periodic table, and these effects increase dramatically in the seventh row--including the actinides--even affecting ground-state configurations (1,2). Atomic s and [p.sub.1/2] orbitals are stabilized by relativistic effects, whereas [p.sub.3/2], d and f orbitals are destabilized, so that ground-state configurations of heavy elements may differ from those of lighter elements in the same group. The first ionization potential ([IP.sub.1]) is a measure of the energy required to remove one valence electron from a neutral atom, and is an atomic property that reflects the outermost electronic configuration. Precise and accurate experimental determination of IP1 gives information on the binding energy of valence electrons, and also, therefore, on the degree of relativistic stabilization. However, such measurements are hampered by the difficulty in obtaining the heaviest elements on scales of more than one atom at a time (3-5). Here we report that the experimentally obtained IP1 of the heaviest actinide, lawrencium (Lr, atomic number 103), is [4.96.sup.+0.08.sub.-0.07] electronvolts. The IP1 of Lr was measured with [sup.256]Lr (half-life 27 seconds) using an efficient surface ion-source and a radioisotope detection system coupled to a mass separator. The measured [IP.sub.1] is in excellent agreement with the value of 4.963(15) electronvolts predicted here by state-of-the-art relativistic calculations. The present work provides a reliable benchmark for theoretical calculations and also opens the way for [IP.sub.1] measurements of superheavy elements (that is, transactinides) on an atom-at-a-time scale., The chemical characterization of heavy elements at the end of the actinides and of all transactinides, performed to probe their positions in the periodic table (4-10), has been, so far, [...]

Published
2015

4. Study of the average charge states of 188Pb and 252,254No ions at the gas-filled separator TASCA

Author

Khuyagbaatar, J., Ackermann, D., Andersson, L.-L., Ballof, J., Brüchle, W., Düllmann, Ch.E., Dvorak, J., Eberhardt, K., Even, J., Gorshkov, A., Graeger, R., Heßberger, F.-P., Hild, D., Hoischen, R., Jäger, E., Kindler, B., Kratz, J.V., Lahiri, S., Lommel, B., Maiti, M., Merchan, E., Rudolph, D., Schädel, M., Schaffner, H., Schausten, B., Schimpf, E., Semchenkov, A., Serov, A., Türler, A., and Yakushev, A.

Published
2012
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6. Unveiling the two-proton halo character of 17Ne: Exclusive measurement of quasi-free proton-knockout reactions

Author

Lehr, C., primary, Wamers, F., additional, Aksouh, F., additional, Aksyutina, Yu., additional, Álvarez-Pol, H., additional, Atar, L., additional, Aumann, T., additional, Beceiro-Novo, S., additional, Bertulani, C.A., additional, Boretzky, K., additional, Borge, M.J.G., additional, Caesar, C., additional, Chartier, M., additional, Chatillon, A., additional, Chulkov, L.V., additional, Cortina-Gil, D., additional, Díaz Fernández, P., additional, Emling, H., additional, Ershova, O., additional, Fraile, L.M., additional, Fynbo, H.O.U., additional, Galaviz, D., additional, Geissel, H., additional, Heil, M., additional, Heine, M., additional, Hoffmann, D.H.H., additional, Holl, M., additional, Johansson, H.T., additional, Jonson, B., additional, Karagiannis, C., additional, Kiselev, O.A., additional, Kratz, J.V., additional, Kulessa, R., additional, Kurz, N., additional, Langer, C., additional, Lantz, M., additional, Le Bleis, T., additional, Lemmon, R., additional, Litvinov, Yu.A., additional, Löher, B., additional, Mahata, K., additional, Marganiec-Galązka, J., additional, Müntz, C., additional, Nilsson, T., additional, Nociforo, C., additional, Ott, W., additional, Panin, V., additional, Paschalis, S., additional, Perea, A., additional, Plag, R., additional, Reifarth, R., additional, Richter, A., additional, Riisager, K., additional, Rodriguez-Tajes, C., additional, Rossi, D., additional, Savran, D., additional, Scheit, H., additional, Schrieder, G., additional, Schrock, P., additional, Simon, H., additional, Stroth, J., additional, Sümmerer, K., additional, Tengblad, O., additional, Weick, H., additional, and Wimmer, C., additional

Published
2022
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7. Unveiling the two-proton halo character of Ne: Exclusive measurement of quasi-free proton-knockout reactions

Author

Lehr, C., Wamers, F., Aksouh, F., Aksyutina, Yu., Álvarez-Pol, H., Atar, L., Aumann, T., Beceiro-Novo, S., Bertulani, C.A., Boretzky, K., Borge, M.J.G., Caesar, C., Chartier, M., Chatillon, A., Chulkov, L.V., Cortina-Gil, D., Díaz Fernández, P., Emling, H., Ershova, O., Fraile, L.M., Fynbo, H.O.U., Galaviz, D., Geissel, H., Heil, M., Heine, M., Hoffmann, D.H.H., Holl, M., Johansson, H.T., Jonson, B., Karagiannis, C., Kiselev, O.A., Kratz, J.V., Kulessa, R., Kurz, N., Langer, C., Lantz, M., Le Bleis, T., Lemmon, R., Litvinov, Yu.A., Löher, B., Mahata, K., Marganiec-Galązka, J., Müntz, C., Nilsson, T., Nociforo, C., Ott, W., Panin, V., Paschalis, S., Perea, A., Plag, R., Reifarth, R., Richter, A., Riisager, K., Rodriguez-Tajes, C., Rossi, D., Savran, D., Scheit, H., Schrieder, G., Schrock, P., Simon, H., Stroth, J., Sümmerer, K., Tengblad, O., Weick, H., and Wimmer, C.

Abstract

The proton drip-line nucleus $^{17}$Ne is investigated experimentally in order to determine its two-proton halo character. A fully exclusive measurement of the $^{17}$Ne(p,2p)16F→15⁎O+p quasi-free one-proton knockout reaction has been performed at GSI at around 500 MeV/nucleon beam energy. All particles resulting from the scattering process have been detected. The relevant reconstructed quantities are the angles of the two protons scattered in quasi-elastic kinematics, the decay of $^{16}$F into $^{15}$O (including γ decays from excited states) and a proton, as well as the $^{15}$O+p relative-energy spectrum and the $^{16}$F momentum distributions. The latter two quantities allow an independent and consistent determination of the fractions of l=0 and l=2 motion of the valence protons in $^{17}$Ne. With a resulting relatively small l=0 component of only around 35(3)%, it is concluded that $^{17}$Ne exhibits a rather modest halo character only. The quantitative agreement of the two values deduced from the energy spectrum and the momentum distributions supports the theoretical treatment of the calculation of momentum distributions after quasi-free knockout reactions at high energies by taking into account distortions based on the Glauber theory. Moreover, the experimental data allow the separation of valence-proton knockout and knockout from the $^{15}$O core. The latter process contributes with 11.8(3.1) mb around 40% to the total proton-knockout cross section of 30.3(2.3) mb, which explains previously reported contradicting conclusions derived from inclusive cross sections.

Published
2022

8. On the adsorption and reactivity of element 114, flerovium

Author

Yakushev, A., Lens, L., Düllmann, Ch. E., Khuyagbaatar, J., Jäger, E., Krier, J., Runke, J., Albers, H. M., Asai, M., Block, M., Despotopulos, J., Di Nitto, A., Eberhardt, K., Forsberg, U., Golubev, P., Götz, M., Götz, S., Haba, H., Harkness-Brennan, L., Herzberg, R.-D., Heßberger, F. P., Hinde, D., Hübner, A., Judson, D., Kindler, B., Komori, Y., Konki, J., Kratz, J.V., Kurz, N., Laatiaoui, M., Lahiri, S., Lommel, B., Maiti, M., Mistry, A. K., Mokry, Ch., Moody, K. J., Nagame, Y., Omtvedt, J. P., Papadakis, P., Pershina, V., Rudolph, D., Samiento, L.G., Sato, T.K., Schädel, M., Scharrer, P., Schausten, B., Shaughnessy, D. A., Steiner, J., Thörle-Pospiech, P., Toyoshima, A., Trautmann, N., Tsukada, K., Uusitalo, J., Voss, K.-O., Ward, A., Wegrzecki, M., Wiehl, N., Williams, E., and Yakusheva, V.

Subjects
superheavy elements, atomit, atomifysiikka, adsorption, radiokemia, alkuaineet, radiochemistry, nuclear chemistry, adsorptio, recoil separators, element 114, kemialliset ominaisuudet
Abstract

Flerovium (Fl, element 114) is the heaviest element chemically studied so far. To date, its interaction with gold was investigated in two gas-solid chromatography experiments, which reported two different types of interaction, however, each based on the level of a few registered atoms only. Whereas noble-gas-like properties were suggested from the first experiment, the second one pointed at a volatile-metal-like character. Here, we present further experimental data on adsorption studies of Fl on silicon oxide and gold surfaces, accounting for the inhomogeneous nature of the surface, as it was used in the experiment and analyzed as part of the reported studies. We confirm that Fl is highly volatile and the least reactive member of group 14. Our experimental observations suggest that Fl exhibits lower reactivity towards Au than the volatile metal Hg, but higher reactivity than the noble gas Rn. peerReviewed

Published
2022

11. The recoil transfer chamber—An interface to connect the physical preseparator TASCA with chemistry and counting setups

Author

Even, J., Ballof, J., Brüchle, W., Buda, R.A., Düllmann, Ch.E., Eberhardt, K., Gorshkov, A., Gromm, E., Hild, D., Jäger, E., Khuyagbaatar, J., Kratz, J.V., Krier, J., Liebe, D., Mendel, M., Nayak, D., Opel, K., Omtvedt, J.P., Reichert, P., Runke, J., Sabelnikov, A., Samadani, F., Schädel, M., Schausten, B., Scheid, N., Schimpf, E., Semchenkov, A., Thörle-Pospiech, P., Toyoshima, A., Türler, A., Vicente Vilas, V., Wiehl, N., Wunderlich, T., and Yakushev, A.

Published
2011
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12. TASISpec—A highly efficient multi-coincidence spectrometer for nuclear structure investigations of the heaviest nuclei

Author

Andersson, L.-L., Rudolph, D., Golubev, P., Herzberg, R.-D., Hoischen, R., Merchán, E., Ackermann, D., Düllmann, Ch.E., Eberhardt, K., Even, J., Gerl, J., Heßberger, F.P., Jäger, E., Khuyagbaatar, J., Kojouharov, I., Kratz, J.V., Krier, J., Kurz, N., Prokopowicz, W., Schädel, M., Schaffner, H., Schausten, B., Schimpf, E., Semchenkov, A., Türler, A., Wollersheim, H.-J., Yakushev, A., Thörle-Pospiech, P., Hartmann, W., Hübner, A., Lommel, B., Kindler, B., and Steiner, J.

Published
2010
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14. First Study on Nihonium (Nh, Element 113) Chemistry at TASCA

Author

Yakushev, A., primary, Lens, L., additional, Düllmann, Ch. E., additional, Block, M., additional, Brand, H., additional, Calverley, T., additional, Dasgupta, M., additional, Di Nitto, A., additional, Götz, M., additional, Götz, S., additional, Haba, H., additional, Harkness-Brennan, L., additional, Herzberg, R-D., additional, Heßberger, F. P., additional, Hinde, D., additional, Hübner, A., additional, Jäger, E., additional, Judson, D., additional, Khuyagbaatar, J., additional, Kindler, B., additional, Komori, Y., additional, Konki, J., additional, Kratz, J.V., additional, Krier, J., additional, Kurz, N., additional, Laatiaoui, M., additional, Lommel, B., additional, Lorenz, Christian, additional, Maiti, M., additional, Mistry, A.K., additional, Mokry, Ch., additional, Nagame, Y., additional, Papadakis, P., additional, Såmark-Roth, A., additional, Rudolph, D., additional, Runke, J., additional, Sarmiento, L.G., additional, Sato, T.K., additional, Schädel, M., additional, Scharrer, P., additional, Schausten, B., additional, Steiner, J., additional, Thörle-Pospiech, P., additional, Toyoshima, A., additional, Trautmann, N., additional, Uusitalo, J., additional, Ward, A., additional, Wegrzecki, M., additional, and Yakusheva, V., additional

Published
2021
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17. Towards a new measurement of the neutron electric dipole moment

Author

Altarev, I., Ban, G., Bison, G., Bodek, K., Burghoff, M., Cvijovic, M., Daum, M., Fierlinger, P., Gutsmiedl, E., Hampel, G., Heil, W., Henneck, R., Horras, M., Khomutov, N., Kirch, K., Kistryn, St., Knappe-Grüneberg, S., Knecht, A., Knowles, P., Kozela, A., Kratz, J.V., Kuchler, F., Kuźniak, M., Lauer, T., Lauss, B., Lefort, T., Mtchedlishvili, A., Naviliat-Cuncic, O., Paul, S., Pazgalev, A.S., Petzoldt, G., Pierre, E., Plonka-Spehr, C., Quéméner, G., Rebreyend, D., Roccia, S., Rogel, G., Sander-Thoemmes, T., Schnabel, A., Severijns, N., Sobolev, Yu., Stoepler, R., Trahms, L., Weis, A., Wiehl, N., Zejma, J., and Zsigmond, G.

Published
2009
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18. Additional results from the first dedicated search for neutron–mirror neutron oscillations

Author

Bodek, K., Kistryn, St., Kuźniak, M., Zejma, J., Burghoff, M., Knappe-Grüneberg, S., Sander-Thoemmes, T., Schnabel, A., Trahms, L., Ban, G., Lefort, T., Naviliat-Cuncic, O., Khomutov, N., Knowles, P., Pazgalev, A.S., Weis, A., Rogel, G., Quéméner, G., Rebreyend, D., Roccia, S., Bison, G., Severijns, N., Eberhardt, K., Hampel, G., Heil, W., Kratz, J.V., Lauer, T., Plonka-Spehr, C., Sobolev, Yu., Wiehl, N., Altarev, I., Fierlinger, P., Gutsmiedl, E., Paul, S., Stoepler, R., Daum, M., Henneck, R., Kirch, K., Knecht, A., Lauss, B., Mtchedlishvili, A., Petzoldt, G., and Zsigmond, G.

Published
2009
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21. Synthesis and characterization of the hybrid clay-based material montmorillonite--melanoidin: a potential soil model

Author

Vilas, V. Vicente, Mathiasch, B., Huth, J., Kratz, J.V., de la Rosa, S. Rubert, Michel, P., and Schafer, T.

Subjects
Polymers -- Production processes, Polymers -- Chemical properties, Polymers -- Identification and classification, Polymers -- Materials, Chemical synthesis -- Methods, Clay -- Usage, Montmorillonite -- Usage, Soils -- Models, Earth sciences
Abstract

The study of the interactions among metals, minerals, and humic substances is essential in understanding the migration of inorganic pollutants in the geosphere. A considerable amount of organic matter in the environment is associated with clay minerals. To understand the role of organic matter in the environment and its association with clay minerals, a hybrid day-based material (H CM), montmorillonite (STx-1)--melanoidin, was prepared from L-tyrosine and L-glutamic acid by the Maillard reaction. The HCM was characterized by elemental analysis, nuclear magnetic resonance, x-ray photoelectron spectroscopy (XPS), scanning transmission x-ray microscopy (STXM), and thermal analysis. The presence of organic materials on the surface was confirmed by XPS and STXM. The STXM results showed the presence of organic spots on the surface of the STx-1 and the characterization of the functional groups present in those spots. Thermal analysis confirmed the existence of organic materials in the montmorillonite interlayer, indicating the formation of a composite of melanoidin and montmorillonite. '[he melanoidin appeared to be located partially between the layers of montmorillonite and partially at the surface, forming a structure that resembles the way a cork sits on the top of a champagne bottle. Abbreviations: DTA, differential thermal analysis; GHD, glutamine hybrid material naelanoidin fraction; GHS, glutamine hybrid material solid fraction; HCM, hybrid clay-based material; NMR, nuclear magnetic resonance; STx-1, sodium-montmorillonite; STXM, scanning transmission x-ray microscopy; THD, tyrosine hybrid material melanoidin fraction; THS, tyrosine hybrid material solid fraction; XPS, x-ray photoelectron spectroscopy. doi: 10.2136/sssaj2009.0454

Published
2010

22. Fission in the landscape of heaviest elements: Some recent examples

Author

Khuyagbaatar J., Yakushev A., Düllmann Ch.E., Ackermann D., Andersson L.-L., Block M., Brand H., Even J., Forsberg U., Hartmann W., Herzberg R.-D., Heßberger F.P., Hoffmann J., Hübner A., Jäger E., Jeppsson J., Kindler B., Kratz J.V., Krier J., Kurz N., Lommel B., Maiti M., Minami S., Rudolph D., Runke J., Sarmiento L.G., Schädel M., Schausten B., Steiner J., Heidenreich T. Torres De, Uusitalo J., Wiehl N., and Yakusheva V.

Subjects
Physics, QC1-999
Abstract

The fission process still remains a main factor that determines the stability of the atomic nucleus of heaviest elements. Fission half-lives vary over a wide range, 10−19−1024 s. Present experimental techniques for the synthesis of the superheavy elements that usually measure α-decay chains are sensitive only in a limited range of half-lives, often 10−5−103 s. In the past years, measurement techniques for very short-lived and very long-lived nuclei were significantly improved at the gas-filled recoil separator TASCA at GSI Darmstadt. Recently, several experimental studies of fission-related phenomena have successfully been performed. In this paper, results on 254−256Rf and 266Lr are presented and corresponding factors for retarding the fission process are discussed.

Published
2016
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23. Complex chemistry with complex compounds

Author

Eichler Robert, Asai M., Brand H., Chiera N.M., Di Nitto A., Dressler R., Düllmann Ch.E., Even J., Fangli F., Goetz M., Haba H., Hartmann W., Jäger E., Kaji D., Kanaya J., Kaneya Y., Khuyagbaatar J., Kindler B., Komori Y., Kraus B., Kratz J.V., Krier J., Kudou Y., Kurz N., Miyashita S., Morimoto K., Morita K., Murakami M., Nagame Y., Ooe K., Piguet D., Sato N., Sato T.K., Steiner J., Steinegger P., Sumita T., Takeyama M., Tanaka K., Tomitsuka T., Toyoshima A., Tsukada K., Türler A., Usoltsev I., Wakabayashi Y., Wang Y., Wiehl N., Wittwer Y., Yakushev A., Yamaki S., Yano S., and Qin Z.

Subjects
Physics, QC1-999
Abstract

In recent years gas-phase chemical studies assisted by physical pre-separation allowed for the investigation of fragile single molecular species by gas-phase chromatography. The latest success with the heaviest group 6 transactinide seaborgium is highlighted. The formation of a very volatile hexacarbonyl compound Sg(CO)6 was observed similarly to its lighter homologues molybdenum and tungsten. The interactions of these gaseous carbonyl complex compounds with quartz surfaces were investigated by thermochromatography. Second-generation experiments are under way to investigate the intramolecular bond between the central metal atom of the complexes and the ligands addressing the influence of relativistic effects in the heaviest compounds. Our contribution comprises some aspects of the ongoing challenging experiments as well as an outlook towards other interesting compounds related to volatile complex compounds in the gas phase.

Published
2016
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24. Spectroscopic Tools Applied to Flerovium Decay Chains

Author

Cox, D. M., Såmark-Roth, A., Rudolph, D., Sarmiento, L.G., Fahlander, C., Forsberg, U., Golubev, P., Heery, J.A.M., Yakushev, A., Albers, H. M., Block, M., Brand, H., Clark, R.M., Düllmann, Ch.E., Eberth, J., Gates, J.M., Giacoppo, F., Götz, M., Götz, S., Herzberg, R.-D., Jäger, E., Kindler, B., Khuyagbaatar, J., Kojouharov, I., Kratz, J.V., Krier, J., Kurz, N., Lens, L., Lommel, B., Mistry, A., Meyer, C.-C., Mokry, C., Papadakis, P., Pore, J.L., Runke, J., Thörle-Pospiech, P., Trautmann, N., Schaffner, H, Schausten, B., Uusitalo, J., Cox, D. M., Såmark-Roth, A., Rudolph, D., Sarmiento, L.G., Fahlander, C., Forsberg, U., Golubev, P., Heery, J.A.M., Yakushev, A., Albers, H. M., Block, M., Brand, H., Clark, R.M., Düllmann, Ch.E., Eberth, J., Gates, J.M., Giacoppo, F., Götz, M., Götz, S., Herzberg, R.-D., Jäger, E., Kindler, B., Khuyagbaatar, J., Kojouharov, I., Kratz, J.V., Krier, J., Kurz, N., Lens, L., Lommel, B., Mistry, A., Meyer, C.-C., Mokry, C., Papadakis, P., Pore, J.L., Runke, J., Thörle-Pospiech, P., Trautmann, N., Schaffner, H, Schausten, B., and Uusitalo, J.

Abstract

An upgraded TASISpec setup, with the addition of a veto DSSD and the new Compex detector-germanium array, has been employed with the gas-filled recoil separator TASCA at the GSI Helmholtzzentrum für Schwerionenforschung Darmstadt, to study flerovium (element 114) decay chains. The detector upgrades along with development of new analytical techniques have improved the sensitivity of the TASISpec setup for measuring α-photon coincidences. These improvements have been assessed with test reactions. The reaction 48Ca+206,207Pb was used for verification of experimental parameters such as transmission to implantation DSSD and target-segment to α-decay correlations. The reaction 48Ca+ natHf was used to produce several short-lived nuclei with multiple-α decay chains to investigate pile-up event deconvolution.

Published
2020

25. Search for elements 119 and 120

Author

Khuyagbaatar, J., Yakushev, A., Düllmann, Ch. E., Ackermann, D., Andersson, L.-L., Asai, M., Block, M., Boll, R.A., Brand, H., Cox, D. M., Dasgupta, M., Derkx, X., Di Nitto, A., Eberhardt, K., Even, J., Evers, M., Fahlander, C., Forsberg, U., Gates, J. M., Gharibyan, N., Golubev, P., Gregorich, K. E., Hamilton, J. H., Hartmann, W., Herzberg, R.-D., Heßberger, F. P., Hinde, D. J., Hoffmann, J., Hollinger, R., Hübner, A., Jäger, E., Kindler, B., Kratz, J.V., Krier, J., Kurz, N., Laatiaoui, M., Lahiri, S., Lang, R., Lommel, B., Maiti, M., Miernik, K., Minami, S., Mistry, A. K., Mokry, C., Nitsche, H., Omtvedt, J. P., Pang, G. K., Papadakis, P., Renisch, D., Roberto, J. B., Rudolph, D., Runke, J., Rykaczewski, K. P., Sarmiento Pico, Luis, Schädel, M., Schausten, B., Semchenkov, A., Shaughnessy, D. A., Steinegger, P., Steiner, J., Tereshatov, E. E., Thörle-Pospiech, P., Tinschert, K., Torres De Heidenreich, T., Trautmann, N., Türler, A., Uusitalo, J., Wegrzecki, M., Wiehl, N., Van Cleve, S. M., Yakusheva, V., Khuyagbaatar, J., Yakushev, A., Düllmann, Ch. E., Ackermann, D., Andersson, L.-L., Asai, M., Block, M., Boll, R.A., Brand, H., Cox, D. M., Dasgupta, M., Derkx, X., Di Nitto, A., Eberhardt, K., Even, J., Evers, M., Fahlander, C., Forsberg, U., Gates, J. M., Gharibyan, N., Golubev, P., Gregorich, K. E., Hamilton, J. H., Hartmann, W., Herzberg, R.-D., Heßberger, F. P., Hinde, D. J., Hoffmann, J., Hollinger, R., Hübner, A., Jäger, E., Kindler, B., Kratz, J.V., Krier, J., Kurz, N., Laatiaoui, M., Lahiri, S., Lang, R., Lommel, B., Maiti, M., Miernik, K., Minami, S., Mistry, A. K., Mokry, C., Nitsche, H., Omtvedt, J. P., Pang, G. K., Papadakis, P., Renisch, D., Roberto, J. B., Rudolph, D., Runke, J., Rykaczewski, K. P., Sarmiento Pico, Luis, Schädel, M., Schausten, B., Semchenkov, A., Shaughnessy, D. A., Steinegger, P., Steiner, J., Tereshatov, E. E., Thörle-Pospiech, P., Tinschert, K., Torres De Heidenreich, T., Trautmann, N., Türler, A., Uusitalo, J., Wegrzecki, M., Wiehl, N., Van Cleve, S. M., and Yakusheva, V.

Abstract

A search for production of the superheavy elements with atomic numbers 119 and 120 was performed in the 50Ti+249Bk and 50Ti+249Cf fusion-evaporation reactions, respectively, at the gas-filled recoil separator TASCA at GSI Darmstadt, Germany. Over four months of irradiation, the 249Bk target partially decayed into 249Cf, which allowed for a simultaneous search for both elements. Neither was detected at cross-section sensitivity levels of 65 and 200 fb for the 50Ti+249Bk and 50Ti+249Cf reactions, respectively, at a midtarget beam energy of Elab = 281.5 MeV. The nonobservation of elements 119 and 120 is discussed within the concept of fusion-evaporation reactions including various theoretical predictions on the fission-barrier heights of superheavy nuclei in the region of the island of stability.

Published
2020

27. Spectroscopic Tools Applied to Flerovium Decay Chains

Author

Cox, D. M., primary, Såmark-Roth, A., additional, Rudolph, D., additional, Sarmiento, L.G., additional, Fahlander, C., additional, Forsberg, U., additional, Golubev, P., additional, Heery, J.A.M., additional, Yakushev, A., additional, Albers, H. M., additional, Block, M., additional, Brand, H., additional, Clark, R.M., additional, Düllmann, Ch.E., additional, Eberth, J., additional, Gates, J.M., additional, Giacoppo, F., additional, Götz, M., additional, Götz, S., additional, Herzberg, R.-D., additional, Jäger, E., additional, Kindler, B., additional, Khuyagbaatar, J., additional, Kojouharov, I., additional, Kratz, J.V., additional, Krier, J., additional, Kurz, N., additional, Lens, L., additional, Lommel, B., additional, Mistry, A., additional, Meyer, C.-C., additional, Mokry, C., additional, Papadakis, P., additional, Pore, J.L., additional, Runke, J., additional, Thörle-Pospiech, P., additional, Trautmann, N., additional, Schaffner, H, additional, Schausten, B., additional, and Uusitalo, J., additional

Published
2020
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30. Spectroscopic Tools Applied to Element Z = 115 Decay Chains

Author

Forsberg U., Rudolph D., Golubev P., Sarmiento L.G., Yakushev A., Andersson L.-L., Nitto A. Di, Düllmann Ch.E., Gates J.M., Gregorich K.E., Gross C.J., Heßberger F.P., Herzberg R.-D., Khuyagbaatar J., Kratz J.V., Rykaczewski K., Schädel M., Åberg S., Ackermann D., Block M., Brand H., Carlsson B.G., Cox D., Derkx X., Eberhardt K., Even J., Fahlander C., Gerl J., Jäger E., Kindler B., Krier J., Kojouharov I., Kurz N., Lommel B., Mistry A., Mokry C., Nitsche H., Omtvedt J.P., Papadakis P., Ragnarsson I., Runke J., Schaffner H., Schausten B., Thörle-Pospiech P., Torres T., Traut T., Trautmann N., Türler A., Ward A., Ward D.E., and Wiehl and N.

Subjects
Physics, QC1-999
Abstract

Nuclides that are considered to be isotopes of element Z = 115 were produced in the reaction 48Ca + 243Am at the GSI Helmholtzzentrum für Schwerionenforschung Darmstadt. The detector setup TASISpec was used. It was mounted behind the gas-filled separator TASCA. Thirty correlated α-decay chains were found, and the energies of the particles were determined with high precision. Two important spectroscopic aspects of the offline data analysis are discussed in detail: the handling of digitized preamplified signals from the silicon strip detectors, and the energy reconstruction of particles escaping to upstream detectors relying on pixel-by-pixel dead-layer thicknesses.

Published
2014
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31. Exclusive measurements of nuclear breakup reactions of 17Ne

Author

Wamers F., Marganiec J., Aksouh F., Aksyutina Yu., Álvarez-Pol H., Aumann T., Beceiro-Novo S., Bertulani C.A., Boretzky K., Borge M.J.G., Chartier M., Chatillon A., Chulkov L.V., Cortina-Gil D., Egorova I.A., Emling H., Ershova O., Forssén C., Fraile L.M., Fynbo H., Galaviz D., Geissel H., Grigorenko L.V., Heil M., Hoffmann D.H.H., Hoffmann J., Johansson H., Jonson B., Karagiannis C., Karakoç M., Kiselev O.A., Kratz J.V., Kulessa R., Kurz N., Langer C., Lantz M., Larsson K., Bleis T. Le, Lemmon R., Litvinov Yu.A., Mahata K., Müntz C., Nilsson T., Nociforo C., Nyman G., Ott W., Panin V., Parfenova Yu.L., Paschalis S., Perea A., Plag R., Reifarth R., Richter A., Rodriguez-Tajes C., Rossi D., Riisager K., Savran D., Schrieder G., Shul’gina N.B., Simon H., Stroth J., Sümmerer K., Taylor J., Tengblad O., Tengborn E., Weick H., Wimmer C., and Zhukov M.V.

Subjects
Physics, QC1-999
Abstract

We have studied one-proton-removal reactions of about 500MeV/u 17Ne beams on a carbon target at the R3B/LAND setup at GSI by detecting beam-like 15O-p and determining their relative-energy distribution. We exclusively selected the removal of a 17Ne halo proton, and the Glauber-model analysis of the 16F momentum distribution resulted in an s2 contribution in the 17Ne ground state of about 40%.

Published
2014
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36. Study of non-fusion products in the Reaction

Author

Di Nitto, A., Khuyagbaatar, J., Ackermann, D., Andersson, L.L., Badura, E., Block, M., Brand, H., Conrad, I., Cox, D.M., Düllmann, Ch.E., Dvorak, J., Eberhardt, K., Ellison, P.A., Esker, N.E., Even, J., Fahlander, C., Forsberg, U., Gates, J.M., Golubev, P., Gothe, O., Gregorich, K.E., Hartmann, W., Herzberg, R.D., Heßberger, F.P., Hoffmann, J., Hollinger, R., Hübner, A., Jäger, E., Kindler, B., Klein, S., Kojouharov, I., Kratz, J.V., Krier, J., Kurz, N., Lahiri, S., Lommel, B., Maiti, M., Mändl, R., Merchán, E., Minami, S., Mistry, A.K., Mokry, C., Nitsche, H., Omtvedt, J.P., Pang, G.K., Renisch, D., Rudolph, D., Runke, J., Sarmiento, L.G., Schädel, M., Schaffner, H., Schausten, B., Semchenkov, A., Steiner, J., Thörle-Pospiech, P., Trautmann, N., Türler, A., Uusitalo, J., Ward, D., Wegrzecki, M., Wieczorek, P., Wiehl, N., Yakushev, A., and Yakusheva, V.

Subjects
Nuclear Experiment
Abstract

The isotopic distribution of nuclei produced in the 50Ti + 249Cf reaction has been studied at the gas-filled recoil separator TASCA at GSI Darmstadt, which separates ions according to differences in magnetic rigidity. The bombardment was performed at an energy around the Bass barrier and with the TASCA magnetic fields set for collecting fusion-evaporation reaction products. Fifty-three isotopes located “north-east” of 208Pb were identified as recoiling products formed in non-fusion channels of the reaction. These recoils were implanted with energies in two distinct ranges; besides one with higher energy, a significant low-energy contribution was identified. The latter observation was not expected to occur according to kinematics of the known types of reactions, namely quasi-elastic, multi-nucleon transfer, deep-inelastic collisions or quasifission. The present observations are discussed within the framework of two-body kinematics passing through the formation of a composite system.

Published
2018

37. Identification of Reaction Products in 50Ti+249Cf Reactions at TASCA

Author

Di Nitto, A., Khuyagbaatar, J., Ackermann, D., Adamczewski-Musch, J., Andersson, Lise-Lotte, Badura, E., Block, M, Brand, H., Cox, D. M., Düllmann, Ch. E., Dvorak, J., Eberhardt, K., Ellison, P. A., Esker, N. E., Even, J., Fahlander, Claes, Forsberg, Ulrika, Gates, J.M., Golubev, Pavel, Gothe, O., Gregorich, K.E., Hartmann, W., Herzberg, R.-D., Heßberger, F. P., Hoffmann, J., Hollinger, R., Hübner, A., Jäger, E., Jeppsson, J., Kindler, B., Klein, S., Kojouharov, I., Kratz, J.V., Krier, J., Kurz, N., Lahiri, S., Linev, S., Lommel, B., Maiti, M., Mändl, R., Merchán, E., Minami, S., Mistry, A. K., Mokry, Ch., Nitsche, H., Omtvedt, J. P., Pang, G., Pysmenetska, I., Renisch, D., Rudolph, Dirk, Runke, J., Sarmiento Pico, Luis, Schädel, M., Schaffner, H, Schausten, B., Semchenkov, A., Steiner, J., Thörle-Pospiech, P., Torres De Heidenreich, T., Trautmann, N., Türler, A., Uusitalo, J., Ward, Daniel, Wegrzecki, M., Wieczorek, P., Wiehl, N., Yakushev, A., Yakusheva, V., and Große, Katrin

Subjects
Subatomic Physics
Published
2017

38. Chemical properties of element 106 (seaborgium)

Author

Schadel, M., Bruchle, W., Dressler, R., Eichler, B., Gaggeler, H.W., Gunther, R., Gregorich, K.E., Hoffman, D.C., Hubener, S., Jost, D.T., Kratz, J.V., Paulus, W., Schumann, D., Timokhin, S., Trautmann, N., Turler, A., Wirth, G., and Yakuschev, A.

Subjects
Transactinide elements -- Analysis, Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

Synthesis of elements heavier than actinides, allows the limits of the periodic table to be used as a way of classifying elements. Transactinide elements have been expanded to element 112, although chemical properties have only been investigated to transactinide elements 104 and 105. The chemical separation of seaborgium (element 106) is reported and its chemical behaviour in a gas phase and aqueous solution. Seaborgium was found to have similar characteristics to molybdenum and tungsten, the group six homologues.

Published
1997

39. Study of non-fusion products in the Ti50+Cf249 reaction

Author

Di Nitto, A., primary, Khuyagbaatar, J., additional, Ackermann, D., additional, Andersson, L.-L., additional, Badura, E., additional, Block, M., additional, Brand, H., additional, Conrad, I., additional, Cox, D.M., additional, Düllmann, Ch.E., additional, Dvorak, J., additional, Eberhardt, K., additional, Ellison, P.A., additional, Esker, N.E., additional, Even, J., additional, Fahlander, C., additional, Forsberg, U., additional, Gates, J.M., additional, Golubev, P., additional, Gothe, O., additional, Gregorich, K.E., additional, Hartmann, W., additional, Herzberg, R.D., additional, Heßberger, F.P., additional, Hoffmann, J., additional, Hollinger, R., additional, Hübner, A., additional, Jäger, E., additional, Kindler, B., additional, Klein, S., additional, Kojouharov, I., additional, Kratz, J.V., additional, Krier, J., additional, Kurz, N., additional, Lahiri, S., additional, Lommel, B., additional, Maiti, M., additional, Mändl, R., additional, Merchán, E., additional, Minami, S., additional, Mistry, A.K., additional, Mokry, C., additional, Nitsche, H., additional, Omtvedt, J.P., additional, Pang, G.K., additional, Renisch, D., additional, Rudolph, D., additional, Runke, J., additional, Sarmiento, L.G., additional, Schädel, M., additional, Schaffner, H., additional, Schausten, B., additional, Semchenkov, A., additional, Steiner, J., additional, Thörle-Pospiech, P., additional, Trautmann, N., additional, Türler, A., additional, Uusitalo, J., additional, Ward, D., additional, Wegrzecki, M., additional, Wieczorek, P., additional, Wiehl, N., additional, Yakushev, A., additional, and Yakusheva, V., additional

Published
2018
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40. HCl gas gettering of low-cost silicon

Author

Hampel, J., Ehrenreich, P., Wiehl, N., Kratz, J.V., Reber, S., and Publica

Subjects
Silicium-Photovoltaik, UMG, kristalline Silicium-Dünnschichtsolarzelle, HCI etching, 3D transition metals, Materialien - Solarzellen und Technologie
Abstract

HCl gas gettering is a cheap and simple technique to reduce transition metal concentrations in silicon. It is attractive especially for low-cost silicon materials like upgraded metallurgical grade (UMG) silicon, which usually contain 3d transition metals in high concentrations. Etching of silicon by HCl gas occurs during HCl gas gettering above a certain onset temperature. The etching rate as well as the gettering efficiency was experimentally determined as a function of the gettering temperature, using UMG silicon wafers. The activation energy of the etching reaction by HCl gas was calculated from the obtained data. The gettering efficiency was determined by analyzing Ni as a representative of the 3d transition metals in the wafers with and without applied HCl gas gettering. The Ni concentrations were measured by inductively coupled plasma mass spectrometry (ICP-MS).

Published
2013
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41. Identification of Reaction Products in 50Ti+249Cf Reactions at TASCA

Author

Große, Katrin, Di Nitto, A., Khuyagbaatar, J., Ackermann, D., Adamczewski-Musch, J., Andersson, Lise-Lotte, Badura, E., Block, M, Brand, H., Cox, D. M., Düllmann, Ch. E., Dvorak, J., Eberhardt, K., Ellison, P. A., Esker, N. E., Even, J., Fahlander, Claes, Forsberg, Ulrika, Gates, J.M., Golubev, Pavel, Gothe, O., Gregorich, K.E., Hartmann, W., Herzberg, R.-D., Heßberger, F. P., Hoffmann, J., Hollinger, R., Hübner, A., Jäger, E., Jeppsson, J., Kindler, B., Klein, S., Kojouharov, I., Kratz, J.V., Krier, J., Kurz, N., Lahiri, S., Linev, S., Lommel, B., Maiti, M., Mändl, R., Merchán, E., Minami, S., Mistry, A. K., Mokry, Ch., Nitsche, H., Omtvedt, J. P., Pang, G., Pysmenetska, I., Renisch, D., Rudolph, Dirk, Runke, J., Sarmiento Pico, Luis, Schädel, M., Schaffner, H, Schausten, B., Semchenkov, A., Steiner, J., Thörle-Pospiech, P., Torres De Heidenreich, T., Trautmann, N., Türler, A., Uusitalo, J., Ward, Daniel, Wegrzecki, M., Wieczorek, P., Wiehl, N., Yakushev, A., Yakusheva, V., Große, Katrin, Di Nitto, A., Khuyagbaatar, J., Ackermann, D., Adamczewski-Musch, J., Andersson, Lise-Lotte, Badura, E., Block, M, Brand, H., Cox, D. M., Düllmann, Ch. E., Dvorak, J., Eberhardt, K., Ellison, P. A., Esker, N. E., Even, J., Fahlander, Claes, Forsberg, Ulrika, Gates, J.M., Golubev, Pavel, Gothe, O., Gregorich, K.E., Hartmann, W., Herzberg, R.-D., Heßberger, F. P., Hoffmann, J., Hollinger, R., Hübner, A., Jäger, E., Jeppsson, J., Kindler, B., Klein, S., Kojouharov, I., Kratz, J.V., Krier, J., Kurz, N., Lahiri, S., Linev, S., Lommel, B., Maiti, M., Mändl, R., Merchán, E., Minami, S., Mistry, A. K., Mokry, Ch., Nitsche, H., Omtvedt, J. P., Pang, G., Pysmenetska, I., Renisch, D., Rudolph, Dirk, Runke, J., Sarmiento Pico, Luis, Schädel, M., Schaffner, H, Schausten, B., Semchenkov, A., Steiner, J., Thörle-Pospiech, P., Torres De Heidenreich, T., Trautmann, N., Türler, A., Uusitalo, J., Ward, Daniel, Wegrzecki, M., Wieczorek, P., Wiehl, N., Yakushev, A., and Yakusheva, V.

Published
2017

42. Coulomb and nuclear excitations of narrow resonances in Ne

Author

Marganiec, J., Wamers, F., Aksouh, F., Aksyutina, Yu., Álvarez-Pol, H., Aumann, T., Beceiro-Novo, S., Bertulani, C.A., Boretzky, K., Borge, M.J.G., Chartier, M., Chatillon, A., Chulkov, L.V., Cortina-Gil, D., Emling, H., Ershova, O., Fraile, L.M., Fynbo, H.O.U., Galaviz, D., Geissel, H., Heil, M., Hoffmann, D.H.H., Hoffmann, J., Johansson, H.T., Jonson, B., Karagiannis, C., Kiselev, O.A., Kratz, J.V., Kulessa, R., Kurz, N., Langer, C., Lantz, M., Le Bleis, T., Lemmon, R., Litvinov, Yu.A., Mahata, K., Müntz, C., Nilsson, T., Nociforo, C., Nyman, G., Ott, W., Panin, V., Paschalis, S., Perea, A., Plag, R., Reifarth, R., Richter, A., Rodriguez-Tajes, C., Rossi, D., Riisager, K., Savran, D., Schrieder, G., Simon, H., Stroth, J., Sümmerer, K., Tengblad, O., Typel, S., Weick, H., Wiescher, M., and Wimmer, C.

Abstract

New experimental data for dissociation of relativistic 17Ne projectiles incident on targets of lead, carbon, and polyethylene targets at GSI are presented. Special attention is paid to the excitation and decay of narrow resonant states in 17Ne. Distributions of internal energy in the O15+p+p three-body system have been determined together with angular and partial-energy correlations between the decay products in different energy regions. The analysis was done using existing experimental data on 17Ne and its mirror nucleus 17N. The isobaric multiplet mass equation is used for assignment of observed resonances and their spins and parities. A combination of data from the heavy and light targets yielded cross sections and transition probabilities for the Coulomb excitations of the narrow resonant states. The resulting transition probabilities provide information relevant for a better understanding of the 17Ne structure.

Published
2016

43. Radiochemical study of the kinematics of multi-nucleon transfer reactions in 48Ca + 248Cm collisions 10% above the Coulomb barrier

Author

Götz, M., primary, Götz, S., additional, Kratz, J.V., additional, Düllmann, Ch.E., additional, Mokry, Ch., additional, Runke, J., additional, Thörle-Pospiech, P., additional, Wiehl, N., additional, Schädel, M., additional, Ballof, J., additional, Dorrer, H., additional, Grund, J., additional, Huber, D., additional, Jäger, E., additional, Keller, O., additional, Krier, J., additional, Khuyagbaatar, J., additional, Lens, L., additional, Lommel, B., additional, Mendel, M., additional, Moody, K.J., additional, Scharrer, P., additional, Schausten, B., additional, Shaughnessy, D., additional, Schmitt, M., additional, Steiner, J., additional, Trautmann, N., additional, Yakushev, A., additional, and Yakusheva, V., additional

Published
2017
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44. A new assessment of the alleged link between element 115 and element 117 decay chains

Author

Forsberg, U., Rudolph, D., Fahlander, C., Golubev, P., Sarmiento, L.G., Åberg, S., Block, M., Düllmann, Ch.E., Heßberger, F.P., Kratz, J.V., Yakushev, A., Forsberg, U., Rudolph, D., Fahlander, C., Golubev, P., Sarmiento, L.G., Åberg, S., Block, M., Düllmann, Ch.E., Heßberger, F.P., Kratz, J.V., and Yakushev, A.

Abstract

A novel rigorous statistical treatment is applied to available data (May 9, 2016) from search and spectroscopy experiments on the elements with atomic numbers Z = 115 and Z = 117 . The present analysis implies that the hitherto proposed cross-reaction link between α-decay chains associated with the isotopes 293-117 and 289-115 is highly improbable.

Published
2016

45. Solution chemistry of element 106: theoretical predictions of hydrolysis of group 6 cations Mo, W and Sg

Author

Pershina, V. and Kratz, J.V.

Subjects
Hydrolysis -- Research, Molybdenum -- Electric properties, Chemistry
Abstract

The hydrolysis process is studied theoritically for element 106, seaorgium, together with its lighter homologues in the group, Mo and W. The results have shown that a decisive energetic factor in the hydrolysis process to be predominant electrostatic metal-ligand interaction.

Published
2001

47. Erratum to “Determination of the irradiation field at the research reactor TRIGA Mainz for BNCT” [J. Appl. Radiat. Isot. 67 (2009) S242–S246]

Author

Duvinage (née Krey), C., primary, Nagels, S., additional, Hampel, G., additional, Kratz, J.V., additional, Aguilar, A.L., additional, Minouchehr, S., additional, Otto, G., additional, Schmidberger, H., additional, Schütz, C., additional, Vogtländer, L., additional, Wortmann, B., additional, and Burgkhardt, B., additional

Published
2016
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48. Recoil-α-fission and recoil-α–α-fission events observed in the reaction 48Ca + 243Am

Author

Forsberg, U., primary, Rudolph, D., additional, Andersson, L.-L., additional, Di Nitto, A., additional, Düllmann, Ch.E., additional, Fahlander, C., additional, Gates, J.M., additional, Golubev, P., additional, Gregorich, K.E., additional, Gross, C.J., additional, Herzberg, R.-D., additional, Heßberger, F.P., additional, Khuyagbaatar, J., additional, Kratz, J.V., additional, Rykaczewski, K., additional, Sarmiento, L.G., additional, Schädel, M., additional, Yakushev, A., additional, Åberg, S., additional, Ackermann, D., additional, Block, M., additional, Brand, H., additional, Carlsson, B.G., additional, Cox, D., additional, Derkx, X., additional, Dobaczewski, J., additional, Eberhardt, K., additional, Even, J., additional, Gerl, J., additional, Jäger, E., additional, Kindler, B., additional, Krier, J., additional, Kojouharov, I., additional, Kurz, N., additional, Lommel, B., additional, Mistry, A., additional, Mokry, C., additional, Nazarewicz, W., additional, Nitsche, H., additional, Omtvedt, J.P., additional, Papadakis, P., additional, Ragnarsson, I., additional, Runke, J., additional, Schaffner, H., additional, Schausten, B., additional, Shi, Yue, additional, Thörle-Pospiech, P., additional, Torres, T., additional, Traut, T., additional, Trautmann, N., additional, Türler, A., additional, Ward, A., additional, Ward, D.E., additional, and Wiehl, N., additional

Published
2016
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49. Coulomb and nuclear excitations of narrow resonances in 17Ne

Author

Marganiec, J., primary, Wamers, F., additional, Aksouh, F., additional, Aksyutina, Yu., additional, Álvarez-Pol, H., additional, Aumann, T., additional, Beceiro-Novo, S., additional, Bertulani, C.A., additional, Boretzky, K., additional, Borge, M.J.G., additional, Chartier, M., additional, Chatillon, A., additional, Chulkov, L.V., additional, Cortina-Gil, D., additional, Emling, H., additional, Ershova, O., additional, Fraile, L.M., additional, Fynbo, H.O.U., additional, Galaviz, D., additional, Geissel, H., additional, Heil, M., additional, Hoffmann, D.H.H., additional, Hoffmann, J., additional, Johansson, H.T., additional, Jonson, B., additional, Karagiannis, C., additional, Kiselev, O.A., additional, Kratz, J.V., additional, Kulessa, R., additional, Kurz, N., additional, Langer, C., additional, Lantz, M., additional, Le Bleis, T., additional, Lemmon, R., additional, Litvinov, Yu.A., additional, Mahata, K., additional, Müntz, C., additional, Nilsson, T., additional, Nociforo, C., additional, Nyman, G., additional, Ott, W., additional, Panin, V., additional, Paschalis, S., additional, Perea, A., additional, Plag, R., additional, Reifarth, R., additional, Richter, A., additional, Rodriguez-Tajes, C., additional, Rossi, D., additional, Riisager, K., additional, Savran, D., additional, Schrieder, G., additional, Simon, H., additional, Stroth, J., additional, Sümmerer, K., additional, Tengblad, O., additional, Typel, S., additional, Weick, H., additional, Wiescher, M., additional, and Wimmer, C., additional

Published
2016
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50. Selected Spectroscopic Results on Element 115 Decay Chains

Author

Rudolph, Dirk, Forsberg, Ulrika, Golubev, Pavel, Sarmiento, Luis, Yakushev, A., Andersson, L.-L., Di Nitto, A., Düllmann, Ch.E., Gates, J.M., Gregorich, K.E., Gross, C.J., Herzberg, R.-D., Heßberger, F.P., Khuyagbaatar, J., Kratz, J.V., Rykaczewski, K., Schädel, M., Åberg, Sven, Ackermann, D., Block, M., Brand, H., Carlsson, Gillis, Cox, D., Derkx, X., Eberhardt, K., Even, J., Fahlander, Claes, Gerl, J., Jäger, E., Kindler, B., Krier, J., Kojouharov, I., Kurz, N., Lommel, B., Mistry, A., Mokry, C., Nitsche, H., Omtvedt, J.P., Papadakis, P., Ragnarsson, Ingemar, Runke, J., Schaffner, H., Schausten, B., Thörle-Pospiech, P., Torres, T., Traut, T., Trautmann, N., Türler, A., Ward, A., Ward, Daniel, Wiehl, N., Rudolph, Dirk, Forsberg, Ulrika, Golubev, Pavel, Sarmiento, Luis, Yakushev, A., Andersson, L.-L., Di Nitto, A., Düllmann, Ch.E., Gates, J.M., Gregorich, K.E., Gross, C.J., Herzberg, R.-D., Heßberger, F.P., Khuyagbaatar, J., Kratz, J.V., Rykaczewski, K., Schädel, M., Åberg, Sven, Ackermann, D., Block, M., Brand, H., Carlsson, Gillis, Cox, D., Derkx, X., Eberhardt, K., Even, J., Fahlander, Claes, Gerl, J., Jäger, E., Kindler, B., Krier, J., Kojouharov, I., Kurz, N., Lommel, B., Mistry, A., Mokry, C., Nitsche, H., Omtvedt, J.P., Papadakis, P., Ragnarsson, Ingemar, Runke, J., Schaffner, H., Schausten, B., Thörle-Pospiech, P., Torres, T., Traut, T., Trautmann, N., Türler, A., Ward, A., Ward, Daniel, and Wiehl, N.

Abstract

Thirty correlated alpha-decay chains were observed in an experiment studying the fusion-evaporation reaction 48Ca + 243Am at the GSI Helmholtzzentrum f¨ur Schwerionenforschung. The decay characteristics of the majority of these 30 chains are consistent with previous observations and interpretations of such chains to originate from isotopes of element Z = 115. High-resolution alpha-photon coincidence spectroscopy in conjunction with comprehensive Monte-Carlo simulations allow to propose excitation schemes of atomic nuclei of the heaviest elements, thereby probing nuclear structure models near the ‘Island of Stability’ with unprecedented experimental precision.

Published
2015

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