论文标题
在高通量D-D中子发电机中使用辐射捕获的聚乙烯对聚乙烯的积分实验
An Integral Experiment on Polyethylene Using Radiative Capture in Indium Foils in a High Flux D-D Neutron Generator
论文作者
论文摘要
加利福尼亚大学伯克利分校核工程系建造了一个D-D中子发电机，称为High Flux中子发电机（HFNG）。它在加速电压的100-125 KEV范围内运行。发电机产生的中子电流约为每秒10^8。这些中子的能量在2.2-2.8 MeV之间。我们在这里报告了通过中子激活D-D中子发电机的多个天然依赖箔确定的聚乙烯的散射与未隔离的中子的结果的结果。使用ENDF/B-VII.1，角度集成光谱和角度差异结果都与蒙特卡洛N颗粒传输（MCNP）代码的预测一致。这支持具有高密度聚乙烯（HDPE）的快速能区域的屏蔽计算。据我们所知，使用D（d，n）alpha中子谱在聚乙烯上没有进行积分基准实验。
The Department of Nuclear Engineering, University of California Berkeley built a D-D neutron generator called the High Flux Neutron Generator (HFNG). It operates in the range of 100-125 keV of accelerating voltage. The generator produces neutron current of about 10^8 per second. These neutrons have energies between 2.2-2.8 MeV. We report here the results of a measurement of the scattered vs unscattered neutron fluence on polyethylene determined via neutron activation of multiple natural indium foils from a D-D neutron generator. Both the angle-integrated spectrum and the angle differential results are consistent with the predictions of the Monte Carlo N-Particle Transport (MCNP) code, using the ENDF/B-VII.1. This supports shielding calculations in the fast energy region with high density polyethylene (HDPE). To the best of our knowledge no integral benchmark experiment has been performed on polyethylene using D(D,n)alpha neutron spectrum.
