Nuclear dissipation from fission time

被引：27
|
作者：
Gontchar, I
Morjean, M
Basnary, S
机构：
[1] CEA, GANIL, DSM, IN2P3,CNRS, F-14076 Caen 5, France
[2] Omsk State Railway Univ, Omsk 644046, Russia
来源：
EUROPHYSICS LETTERS | 2002年 / 57卷 / 03期
关键词：
D O I：
10.1209/epl/i2002-00467-y
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Fission times, pre-scission neutron multiplicities and GDR pre-scission gamma-ray multiplicities measured for uranium or thorium nuclei formed with temperatures T similar to 1.8 MeV have been compared with calculations performed with CDSM2, a two-dimensional dynamical model combined with a statistical one. Among the three experimental approaches considered, fission times give access to the most precise pieces of information on nuclear dissipation at high excitation energy. A dissipation weaker than the classical one-body dissipation has to be considered to reach an agreement between all the data and the model.
引用
收藏
页码：355 / 361
页数：7
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