基于异序排列吸收片的γ能谱的深入探究

Deeply Research on the Impact Way of Different Sequences of Material on the γ-ray

从γ射线与物质相互作用机理出发,在传统单种吸收片研究方式的基础上,详细介绍了不同吸收物质在异序排列组合状态下同时作用于137Cs低能放射源放出的γ射线时的吸收情况,并分别从实验上和理论上进行了分析。结果说明:在实验误差允许的范围内,只要吸收片的种类和个数相同,吸收片间的异序组合,不影响物质对γ射线的吸收,或者其影响可近似忽略,与传统思路相比该思路更能客观形象地反应γ射线与物质相互作用的本质。

Based on the physical mechanism of the interaction between γ-ray and material, the impact way of various absorption material in various permutations and combinations on γ-ray in detail are described which derived from the low energy absorption -137Cs. According to the result from experimental and theoretical analysis, it is sum up that as long as the absorptions have the same number and variety, the impact way of different sequences of material on the same γ-ray is constant, or its influence can approximate ignore.