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arXiv · 1310.2999

Pre-neutron-emission mass distributions for reaction $^{238}$U(n, f) up to 60 MeV

Xiaojun Sun·Chenggang Yu·Ning Wang·Yongxu Yang
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Abstract

The pre-neutron-emission mass distributions for reaction $^{238}$U(n, f) up to 60 MeV are systematically studied with an empirical fission potential model. The energy dependence of the peaks and valleys of the pre-neutron-emission mass distributions is described by an exponential form based on the newly measured data. The energy dependence of evaporation neutrons before scission is also considered, which plays a crucial role for the reasonable description of the mass distributions. The measured data for the pre-neutron-emission mass distributions for reaction $^{238}$U(n, f) are reasonably well reproduced up to 60 MeV. The mass distributions at unmeasured energies are also predicted with this approach.

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Xiaojun Sun, Chenggang Yu, Ning Wang, Yongxu Yang. 2013-10-11. Pre-neutron-emission mass distributions for reaction $^{238}$U(n, f) up to 60 MeV. https://arxiv.org/abs/1310.2999

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