一个全面的蒙特卡洛模拟的中子反应的多元微量测量探测器基于THick气体电子倍增器的多元微量测量探测器
1Department of Physics and Astronomy, McMaster University, Hamilton, ON L8S 4L8, Canada.
Radiation protection dosimetry
|October 11, 2023
概括
蒙特卡洛模拟评估了使用THick气体电子倍增器 (THGEM) 的多元微量测量探测器的中子反应. 结果显示与低能量的克尔马系数有很好的一致性,这表明探测器的探测器.
科学领域:
- 核物理 核物理 核物理
- 辐射检测检测器可以检测到辐射.
- 探测器物理 物理
背景情况:
- 微量测量检测器对于辐射剂量测量至关重要.
- THick气体电子倍增器 (THGEM) 为先进的探测器设计提供了一个有前途的平台.
- 了解中子反应对于辐射安全和研究至关重要.
研究的目的:
- 为基于THGEM的多元件微量测量探测器进行全面的中子反应蒙特卡洛模拟.
- 在各种探测器配置中计算沉积的能量频谱和能量响应.
- 为了评估探测器在敏感体积和层之间响应的变化,以及其角度依赖.
主要方法:
- 使用MCNP6.2代码进行详细的蒙特卡洛模拟.
- 在三种不同的THGEM配置 (7x3,19x5,37x7) 的气态敏感体内模拟中子相互作用.
- 计算了从10 keV到2 MeV的能量响应,并分析了角度响应.
主要成果:
- 模拟的能量响应显示出与评估的流动到克尔玛转换系数在10-100 keV之间的良好一致.
- 与转换系数相比,在250 keV以上观察到模拟响应的差异.
- 角响应模拟表明不同角度的变化不到10%.
结论:
- 基于THGEM的微量测量检测器在较低的能量下显示出可靠的中子反应,适合特定的剂量测量应用.
- 需要进一步调查以解决高中子能量的差异.
- 探测器表现出稳定的角响应,增强其广泛应用的潜力.
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