氘氚中子注入聚乙烯铁铍组合壳体的中子能谱实验研究  

Research on Neutron Energy Spectrum of the Beryllium,Iron and Polyethylene Shells Assemblies Injected by D-T Neutron(In Chinese)

作　　者：安力[1] 郭海萍[1] 王新华[1] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,绵阳621900

出　　处：《中国核科技报告》2009年第1期161-168,共8页China Nuclear Science and Technology Report

摘　　要：为了检验数值模拟程序,建立了从外到内分别为聚乙烯,铁和铍壳的组合装置。当中子源到装置球表面分别为30 cm和50 cm时,在与D^+束成0°和120°两个方向上,利用φ18 mm×20 mm的茋晶体探测谱仪,分别测量了装置内距装置中心0 cm、9.7 cm、12.8 cm和17.3 cm 4个位置1 MeV以上的中子能谱。并对不同位置的中子能谱进行了分析比较。To test a simulation code,the multi-shell assemblies were established, which were made of beryllium,stainless steel and polyethylene from the interior to the outer.The symmetry axes are all in the line of the D^+ beam.The neutron energy spectra above 1 MeV were obtained in medium by the detector of stilbene crystal ofφ18 mm×20 mm.The distance between source and the spherical surface was 30 cm and 50 cm.The measurement channels are in the angle 0°and 120°relative to D^+ beam direction.The measurement positio...

关 键 词：D-T中子源 茋晶体探测器 多壳层组合装置 介质内中子能谱 

分 类 号：O571.54[理学—粒子物理与原子核物理]