Even-odd effects in the prompt fission emission of even Z actinides

被引：1

作者：

Tudora, Anabella ^{[1
]}

Hambsch, Franz-Josef ^{[2
]}

Giubega, Georgiana ^{[1
]}

Visan, Iuliana ^{[1
]}

机构：

[1] Univ Bucharest, Fac Phys, 405 Atomistilor Str,POB MG-11, Magurele 77125, Romania

[2] EC JRC Inst Reference Mat & Measurements IRMM, Retieseweg 111, B-2440 Geel, Belgium

来源：

WONDER-2015 - 4TH INTERNATIONAL WORKSHOP ON NUCLEAR DATA EVALUATION FOR REACTOR APPLICATIONS | 2016年 / 111卷

关键词：

D O I：

10.1051/epjconf/201611105002

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The investigation of even-odd effects in the prompt emission of even Z actinides showed a sawtooth shape of nu(Z) with staggering in the asymmetric fission region. Average prompt emission quantities as a function of A, e.g. nu(A), of even Z fragmentations are higher than those of odd Z fragmentations and they exhibit oscillations with a periodicity of about 5 mass units in the asymmetric fission region. This periodicity is not due to the Z even-odd effect in fragment distributions. The even-odd effect in <nu>(TKE) is increasing with increasing TKE and it decreases with increasing mass of the fissioning nucleus. The global even-odd effect in total average prompt emission quantities is decreasing with increasing mass of the fissioning nucleus. In the case of an even-odd fissioning nucleus, U-234(n,f), the global even-odd effect in prompt emission quantities exhibits a very slow variation with the incident neutron energy.

引用

页数：5

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