摘要
空间硬X射线探测器的本底是影响其性能的关键因素,其成分比较复杂。讨论本底抑制的几种方法,并对常用的几种屏蔽材料通过实验和计算进行比较,给出实验了结果。
The background level is an important aspect for a hard X-ray detector. The methods of background rejection are experimentally studied in this paper. We show that the efficiency of background rejection (lab background) can be 66% with a 3-sides anti-coincidence. Several materials to shield background (by high-energy photons) are also discussed in this paper.
出处
《天文学报》
CSCD
北大核心
2003年第2期215-221,共7页
Acta Astronomica Sinica
基金
国家自然科学基金(9883002
1017302)
