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建模Gd-钻石和Gd-SiC中子探测器

C S Bodie¹, A M Barnett²

¹Space Research Group, Sch. of Mathematical and Physical Sciences, University of Sussex, Falmer, Brighton, BN1 9QT, UK.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

|July 12, 2024

概括

一个新的计算机模型模拟了使用加多 (Gd) 转换层和探测器的中子检测. 这项研究优化了Gd厚度,以实现高效的热中子探测,从而实现了强大,紧的中子探测器.

科学领域:

核科学与工程核科学与工程
材料科学材料科学材料科学
探测器物理学的物理

背景情况:

中子探测器对于核应用至关重要.
加多 (Gd) 是中子转换层的一个有前途的材料.
有效检测热中子需要优化检测器设计.

研究的目的:

开发一个蒙特卡洛 (MC) 模型来模拟Gd.中的中子相互作用.
评估钻石和碳化 (SiC) 探测器用于中子探测的性能.
为了确定高效的热中子检测的最佳Gd厚度.

主要方法:

创建了一个定制的蒙特卡洛 (MC) 计算机模型,以模拟自然Gd中的热中子吸收.
该MC代码模拟了来自Gd的光子和电子辐射,并通过钻石和4H-SiC探测器检测它们.
分析了光子和电子的量子检测效率 (QE).

主要成果:

该MC模型成功模拟了Gd.的中子转换和粒子排放.
对于所选的探测器,电子检测显示出比光子检测更高的量子效率 (QE).
确定了有效的热中子流量检测的最佳Gd厚度.

结论:

开发的MC模型对于优化中子探测器设计是有效的.
自然Gd结合辐射硬探测器为热中子探测提供了强大的解决方案.
潜在的应用包括核科学,太空科学和工程.

关键词:

4H-SiC 4H-SiC 是一个钻石钻石钻石钻石 Gd的转换方式蒙特卡洛方法蒙特卡洛方法中子探测器中子探测器频谱学是一种光谱学.

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