Investigation of fragment yields from 239U fission at anomalously high values of the total kinetic energy

被引：0
作者：
Khriatchkov, VA [1 ]
Dunaev, MV [1 ]
Dunaeva, IV [1 ]
Semenova, NN [1 ]
Sergachev, AI [1 ]
机构：
[1] Inst Phys & Power Engn, Obninsk 249020, Kaluga Oblast, Russia
来源：
PHYSICS OF ATOMIC NUCLEI | 2003年 / 66卷 / 05期
关键词：
D O I：
10.1134/1.1576452
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The yields of fragments originating from U-238 fission induced by 5-MeV neutrons are investigated. Accumulated statistics-2.5 x 106 events of binary fission-make it possible to study fission-fragment yields at anomalously high values of the total kinetic energy. The spectra of the cold fragmentation of U-239 are obtained. Events characterized by the total kinetic energy that is equal to the total reaction energy are found for some fragment masses. Methods of digital signal processing permit a highly reliable identification of these rare events. An interpretation of this phenomenon on the basis of the liquid-drop model of the fission process is Proposed. (C) 2003 MAIK "Nauka/Interperiodica".
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页码：798 / 803
页数：6
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