Liquid-scintillation detection of preseparated (257)Rf with the SISAK-system Academic Article uri icon

abstract

  • The fast liquid-liquid extraction system SISAK with continuous liquid scintillation detection was coupled to the Berkeley Gas-filled Separator to enable studies of the chemical properties of -decaying transactinide elements. The preseparated transactinide 257Rf (4.7 s), was transported via a He/KCl-jet directly into the scintillation solution. This permitted the first unambiguous detection of transactinide atoms by the means of the -liquid scintillation detectors of the SISAK-system. During the experiment, 89 257Rf atoms were observed. The type of events observed correspond well with the expectations based on half-lives, decay branches and transport- and hold-up times. The successful result of this experiment demonstrates that the system is well fitted for count-rates of 1-2 atoms/h and half-lives of a few seconds. 2005 Elsevier B.V. All rights reserved.

published proceedings

  • NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT

author list (cited authors)

  • Stavsetra, L., Gregorich, K. E., Alstad, J., Breivik, H., Eberhardt, K., Folden, C. M., ... Omtvedt, J. P.

citation count

  • 29

complete list of authors

  • Stavsetra, L||Gregorich, KE||Alstad, J||Breivik, H||Eberhardt, K||Folden, CM||Ginter, TN||Johansson, M||Kirbach, UW||Lee, DM||Mendel, M||Omtvedt, LA||Patin, JB||Skarnemark, G||Sudowe, R||Wilk, PA||Zielinski, PM||Nitsche, H||Hoffman, DC||Omtvedt, JP

publication date

  • May 2005