超反射镜涂层中的中子吸收:对屏蔽的影响
Neutron absorption in supermirror coatings: Effects on shielding
摘要:
剂量率的量化和超镜涂层的指南附近的剂量的组成是必不可少的设计屏蔽传输中子束线与高通量。我们目前的计算结果的辐射中子吸收在Ni/Ti和NiMo/Ti超反射镜涂层,导致高能量的γ射线的排放。每个入射中子在涂层材料中的吸收概率的一个简单的参数化给出的反射时的动量转移的函数。
英文摘要:
The quantification of the dose rate and the composition of the dose in the vicinity of supermirror coated guides is essential for designing shielding for beamlines transporting neutrons with a high flux. We present results on a calculation of radiative neutron absorption in Ni/Ti and NiMo/Ti supermirror coatings which leads to the emission of high energy gamma rays. A simple parameterization of the absorption probability in the coating materials per incident neutron is given as a function of momentum transfer at reflection.
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