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Inelastic Deuteron Breakup Followed by Fission at Intermediate Energy

机译:非弹性氘核破裂,随后在中能裂变

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摘要

The results of experimental and theoretical studies of the double-differential proton and neutron spectra measured in coincidence with fission fragments in the deuteron-induced reaction on a ~(238)U target at E_d = 65 MeV are presented. These spectra measured in the forward direction are analyzed in the planewave Born approximation by using the modified model of stripping into a continuum. The pre-neutron emission fission fragment mass distributions were measured for the (d,f), (d,pf), and (d,nf) reaction channels. The enhancement of highly asymmetric mass division in the (d,pf) channel for the low-energy part of the breakup proton spectrum was observed. The (d,pf) channel can be used to imitate the neutroninduced fission at intermediate energy. The fission characteristics were analyzed in the model taking into account nuclear friction and relevant fission modes.
机译:给出了在氘核诱导的E_d = 65 MeV的〜(238)U靶上的氘核诱导反应中与裂变碎片同时发生的双微分质子和中子谱的实验和理论研究的结果。通过使用改进的剥离成连续谱的模型,在平面波Born近似中分析了在正向测量的这些光谱。测量了(d,f),(d,pf)和(d,nf)反应通道的中子发射前裂变碎片质量分布。在分解质子谱的低能量部分,观察到了在(d,pf)通道中高度不对称质量分配的增强。 (d,pf)通道可用于模拟中能诱发的中子裂变。考虑到核摩擦和相关的裂变模式,在模型中分析了裂变特征。

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