基于蒙特卡洛的紧型和便携式空间中子谱仪的设计
Yujie Qiao1, Yafei Han1, Huimin Hei2
1School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, China.
概括
一个新的太空中子光谱仪 (SNS) 为太空探索提供了一种轻量级,定向的替代传统的邦纳球谱仪. 该设备准确地测量了各种空间环境中的中子能量的光谱.
科学领域:
- 太空探索 太空探索
- 辐射检测检测辐射检测器
- 中子光谱学中子光谱学
背景情况:
- 太空探索需要精确检测太空中子辐射.
- 传统的邦纳球谱仪是重的,重的,并且对于太空应用具有较低的故障容忍度.
研究的目的:
- 推出一个新的,紧的,强大的太空中子谱仪 (SNS).
- 为了实现空间环境的定向和非定向中子场测量.
主要方法:
- 使用了不同直径的-3 (3He) 热中子计数器.
- 使用的聚乙烯,含的聚乙烯和加多用于适度和吸收.
- 模拟仪表配置和计算响应矩阵,使用FLUKA蒙特卡洛运输代码.
主要成果:
- 开发了针对定向和非定向中子场的两个SNS规范.
- 从高达20 MeV的热中子获得强烈的定向响应.
- 证明对离轴中子的敏感性降低.
结论:
- 新的SNS可以取代传统的邦纳球谱仪用于空间中子探测.
- 为开发用于地面应用的缩小型轻质中子光谱仪提供了宝贵的参考.
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