Proton-induced fission on 241Am, 238U, and 237Np at intermediate energies

被引：18

作者：

Deppman, A. ^{[1
]}

Andrade-, E., II ^{[1
]}

Guimaraes, V. ^{[1
]}

Karapetyan, G. S. ^{[1
]}

Balabekyan, A. R. ^{[2
]}

Demekhina, N. A. ^{[3
,4
]}

机构：

[1] Univ Sao Paulo, Inst Fis, BR-05389970 Sao Paulo, Brazil

[2] Yerevan State Univ, Yerevan 0025, Armenia

[3] Yerevan Phys Inst, Yerevan 0036, Armenia

[4] Joint Inst Nucl Res, Flerov Lab Nucl React LNR, Moscow 141980, Russia

来源：

PHYSICAL REVIEW C | 2013年 / 88卷 / 02期

基金：

巴西圣保罗研究基金会;

关键词：

NEUTRON MULTIPLICITY; ASYMMETRIC FISSION; PHOTOFISSION; DISTRIBUTIONS; CASCADE; FRAME; MODES; YIELD; CODE; F);

D O I：

10.1103/PhysRevC.88.024608

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：

Intermediate energy data of proton-induced fission on Am-241, U-238, and Np-237 targets were analysed and investigated using the computational simulation code CRISP. Inelastic interactions of protons on heavy nuclei and both symmetric and asymmetric fission are regarded. The fission probabilities are obtained from the CRISP code calculations by means of the Bohr-Wheeler model. The fission cross sections, the fissility and the number of nucleons evaporated by the nuclei, before and after fission, are calculated and compared with experimental data. Some of the model predictions agree completely with the data. We conclude that our two step model of the CRISP code provides a good description of intermediate energy proton-induced fission.

引用

页数：6

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