Measurements of (n,xp), (n,xd) Double Differential Cross Sections of Carbon and Aluminum for 65 and 75 MeV Neutrons
Measurements of (n,xp), (n,xd) Double Differential Cross Sections of Carbon and Aluminum for 65 and 75 MeV Neutrons
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DOI：
10.1080/18811248.1999.9726192
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发表时间：
1999-02
影响因子：
1.2
通讯作者：
Y. Nauchi;M. Baba;T. Sanami;M. Ibaraki;T. Iwasaki;N. Hirakawa;S. Tanaka;S. Meigo;H. Nakashima;H. Takada;Takashi Nakamura;Y. Watanabe
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文献类型：
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作者：
Y. Nauchi;M. Baba;T. Sanami;M. Ibaraki;T. Iwasaki;N. Hirakawa;S. Tanaka;S. Meigo;H. Nakashima;H. Takada;Takashi Nakamura;Y. Watanabe
在TIARA的7 Li（p，n）中子源装置上，用ΔE-E望远镜测量了65和75 MeV中子在12° ~ 70°角范围内的碳和铝的双微分（n，xp），（n，xd）截面。12°时的数据是采用环形几何学获得的。本文介绍了由SSD和NaI（Tl）闪烁体组成的望远镜、实验方法和数据处理过程以及实验结果。碳数据与现有的实验数据进行了比较。碳和铝的（n，xp）光谱与基于核内级联模型和包括预平衡效应的多步Hauser-Feshbach模型的理论计算相当一致，但（n，xd）光谱与这些计算有显着差异。
Double differential (n, xp), (n, xd) cross sections of carbon and aluminum were measured for 65 and 75 MeV neutrons at angles between 12° and 70° using ΔE-E telescopes at a 7 Li(p, n) neutron source facility at TIARA. The data at 12° were obtained by employing an annular geometry. The telescopes consisting of SSD and Nal(Tl) scintillator, experimental methods and the data reduction procedures are presented as well as the results. The carbon data are compared favorably with existing experimental data. The (n, xp) spectra of both carbon and aluminum agreed fairly well with theoretical calculations based on the intra-nuclear cascade model and the multi-step Hauser-Feshbach model including preequilibrium effects, but the (n, xd) spectra differ significantly from those calculations.