Production Cross Sections of 261Rf and 262Db in Bombardments of 248Cm with 18O and 19F Ions

Y. Nagame; M. Asai; H. Haba; S. Goto; K. Tsukada; I. Nishinaka; K. Nishio; S. Ichikawa; A. Toyoshima; K. Akiyama; H. Nakahara; M. Sakama; M. Schäadl; J. V. Kratz; H. W. Gäggeler; A. Türler

doi:10.14494/jnrs2000.3.85

Production Cross Sections of ²⁶¹Rf and ²⁶²Db in Bombardments of ²⁴⁸Cm with ¹⁸O and ¹⁹F Ions

Y. Nagame, M. Asai, H. Haba, S. Goto, K. Tsukada, I. Nishinaka, K. Nishio, S. Ichikawa, A. Toyoshima, K. Akiyama, H. Nakahara, M. Sakama, M. Schäadl, J. V. Kratz, H. W. Gäggeler, A. Türler

Author information

Y. Nagame
Japan Atomic Energy Research Institute
M. Asai
Japan Atomic Energy Research Institute
H. Haba
Japan Atomic Energy Research Institute
S. Goto
Department of Chemistry, Niigata University
K. Tsukada
Japan Atomic Energy Research Institute
I. Nishinaka
Japan Atomic Energy Research Institute
K. Nishio
Japan Atomic Energy Research Institute
S. Ichikawa
Japan Atomic Energy Research Institute
A. Toyoshima
Japan Atomic Energy Research Institute
K. Akiyama
Japan Atomic Energy Research Institute
H. Nakahara
Japan Atomic Energy Research Institute
M. Sakama
Department of Radiological Technology, University of Tokushima
M. Schäadl
Gesellschaft für Schwerionenforschung
J. V. Kratz
Institut für Kernchemie, Universität Mainz
H. W. Gäggeler
Universität Bern
A. Türler
Paul Scherrer Institut

JOURNAL FREE ACCESS

2002 Volume 3 Issue 1 Pages 85-88

DOI https://doi.org/10.14494/jnrs2000.3.85

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Abstract

The transactinide nuclei, ²⁶¹Rf and ²⁶²Db, have been produced in the ²⁴⁸Cm (¹⁸O, 5n) reaction at beam energies of 91, 94, and 99 MeV, and in the ²⁴⁸Cm (¹⁹F, 5n) reaction at 106 MeV, respectively. The production cross sections are evaluated from the mother-daughter correlations of α energies between ²⁶¹Rf and ²⁵⁷No, and ²⁶²Db and ²⁵⁸Lr. The maximum cross section of the ²⁴⁸Cm (¹⁸O, 5n) reaction is measured to be 13±3 nb at around 94 MeV, while the production cross section of ²⁶²Db in ²⁴⁸Cm (¹⁹F, 5n) is 1.3±0.4 nb at 106 MeV.

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