| 空间硬X射线探测器的本底抑制 |
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| 引用本文： | 马涛,常进,杭桓荣.空间硬X射线探测器的本底抑制[J].天文学报,2003,44(2):215-221. |
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| 作者姓名： | 马涛 常进 杭桓荣 |
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| 作者单位： | 中国科学院紫金山天文台,南京,210008 |
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| 基金项目： | 国家自然科学基金(9883002,1017302) |
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| 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。
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| 关 键 词： | 空间硬X射线探测器 本底抑制 航天器 屏蔽材料 |
| 修稿时间： | 2002年10月28 |
Background Rejection in Space Hard X-ray Detector |
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| MA Tao CHANG Jin HANG Heng-Rong.Background Rejection in Space Hard X-ray Detector[J].Acta Astronomica Sinica,2003,44(2):215-221. |
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| Authors: | MA Tao CHANG Jin HANG Heng-Rong |
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| Abstract: | 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. |
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| Keywords: | Space vehicles: instruments Techniques: miscellaneous X-rays: general |
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