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First Superheavy Element Experiments at the GSI Recoil Separator TASCA: The Production and Decay of Element 114 in the 244Pu(48Ca,3-4n) Reaction

Gates, J. M.; Duellmann, Ch E.; Schaedel, M.; Yakushev, A.; Tuerler, A.; Eberhardt, K.; Kratz, J. V.; Ackermann, D.; Andersson, L. -L. and Block, M., et al. (2011) In Physical Review C (Nuclear Physics) 83(5).
Abstract
Experiments with the new recoil separator, Transactinide Separator and Chemistry Apparatus (TASCA), at the GSI were performed by using beams of Ca-48 to irradiate targets of Pb206-208, which led to the production of No252-254 isotopes. These studies allowed for evaluation of the performance of TASCA when coupled to a new detector and electronics system. By following these studies, the isotopes of element 114 ((288-291)114) were produced in irradiations of Pu-244 targets with Ca-48 beams at compound nucleus excitation energies around 41.7 and 37.5 MeV, demonstrating TASCA's ability to perform experiments with picobarn-level cross sections. A total of 15 decay chains were observed and were assigned to the decay of 288-291114. A new a-decay... (More)
Experiments with the new recoil separator, Transactinide Separator and Chemistry Apparatus (TASCA), at the GSI were performed by using beams of Ca-48 to irradiate targets of Pb206-208, which led to the production of No252-254 isotopes. These studies allowed for evaluation of the performance of TASCA when coupled to a new detector and electronics system. By following these studies, the isotopes of element 114 ((288-291)114) were produced in irradiations of Pu-244 targets with Ca-48 beams at compound nucleus excitation energies around 41.7 and 37.5 MeV, demonstrating TASCA's ability to perform experiments with picobarn-level cross sections. A total of 15 decay chains were observed and were assigned to the decay of 288-291114. A new a-decay branch in (281)Ds was observed, leading to the new nucleus (277)Hs. (Less)
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Physical Review C (Nuclear Physics)
volume
83
issue
5
publisher
American Physical Society
external identifiers
  • wos:000291016300005
  • scopus:79960369604
ISSN
0556-2813
DOI
10.1103/PhysRevC.83.054618
language
English
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yes
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59ffbc95-266e-464d-9dfa-96aeb20140d3 (old id 1985787)
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2011-07-06 11:56:46
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@article{59ffbc95-266e-464d-9dfa-96aeb20140d3,
  abstract     = {Experiments with the new recoil separator, Transactinide Separator and Chemistry Apparatus (TASCA), at the GSI were performed by using beams of Ca-48 to irradiate targets of Pb206-208, which led to the production of No252-254 isotopes. These studies allowed for evaluation of the performance of TASCA when coupled to a new detector and electronics system. By following these studies, the isotopes of element 114 ((288-291)114) were produced in irradiations of Pu-244 targets with Ca-48 beams at compound nucleus excitation energies around 41.7 and 37.5 MeV, demonstrating TASCA's ability to perform experiments with picobarn-level cross sections. A total of 15 decay chains were observed and were assigned to the decay of 288-291114. A new a-decay branch in (281)Ds was observed, leading to the new nucleus (277)Hs.},
  articleno    = {054618},
  author       = {Gates, J. M. and Duellmann, Ch E. and Schaedel, M. and Yakushev, A. and Tuerler, A. and Eberhardt, K. and Kratz, J. V. and Ackermann, D. and Andersson, L. -L. and Block, M. and Bruechle, W. and Dvorak, J. and Essel, H. G. and Ellison, P. A. and Even, J. and Forsberg, Ulrika and Gellanki, Jnaneswari and Gorshkov, A. and Graeger, R. and Gregorich, K. E. and Hartmann, W. and Herzberg, R. -D. and Hessberger, F. P. and Hild, D. and Huebner, A. and Jaeger, E. and Khuyagbaatar, J. and Kindler, B. and Krier, J. and Kurz, N. and Lahiri, S. and Liebe, D. and Lommel, B. and Maiti, M. and Nitsche, H. and Omtvedt, J. P. and Parr, E. and Rudolph, Dirk and Runke, J. and Schaffner, H. and Schausten, B. and Schimpf, E. and Semchenkov, A. and Steiner, J. and Thoerle-Pospiech, P. and Uusitalo, J. and Wegrzecki, M. and Wiehl, N.},
  issn         = {0556-2813},
  language     = {eng},
  number       = {5},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {First Superheavy Element Experiments at the GSI Recoil Separator TASCA: The Production and Decay of Element 114 in the 244Pu(48Ca,3-4n) Reaction},
  url          = {http://dx.doi.org/10.1103/PhysRevC.83.054618},
  volume       = {83},
  year         = {2011},
}