Unified description of the fission probability for highly excited nuclei
Unified description of the fission probability for highly excited nuclei
复制标题
高激发核裂变概率的统一描述
DOI:
10.1080/00223131.2018.1539351
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发表时间:
2018
影响因子:
1.2
通讯作者:
Meigo Shin-ichiro
中科院分区:
文献类型:
--
作者:
Iwamoto Hiroki;Meigo Shin-ichiro
We present a new model to describe the fission probability of the high-energy fission model, as deduced from the intra-nuclear cascade calculation with the Intra-Nuclear Cascade model of Liége (INCL) version 4.6 and Prokofiev’s phenomenological systematics of the proton-induced fission cross-sections. This model is implemented in the de-excitation model of the generalized evaporation model (GEM), and applied to Monte Carlo spallation reaction simulation using the Particle and Heavy Ion Transport code System (PHITS). Comparing with experimental data for subactinide nuclei shows that this model can provide a unified prediction of the proton-, neutron-, and deuteron-induced fission cross-sections with markedly improved accuracy. The calculated fission fragments tend to shift to higher mass numbers. To account for the isotopic distributions of fission fragments within the framework of a coupled INCL/GEM, modification of INCL would be required, especially for description of the highly excited states of residual nuclei.
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10.1103/physrevc.87.034601
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2012
期刊:
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