钻石和有机闪探测器的特征使用辐射源用于连续等离子体运行
The Review of scientific instruments
|August 28, 2024
概括
本研究详细介绍了钻石和EJ-309/stilbene探测器的中子校准方法,重点关注n-γ歧视. 结果显示,在等离子体实验期间中子信号采集方面存在很好的一致性.
科学领域:
- 核仪器和探测器的核仪器和探测器
- 等离子体物理学 诊断 诊断
- 辐射检测和测量 辐射检测和测量
背景情况:
- 精确的中子检测对于融合能源研究和核安全至关重要.
- 中子-马 (n-γ) 区分对于混合辐射场的可靠测量至关重要.
- 钻石和有机闪器 (EJ-309, stilbene) 是对中子检测有希望的.
研究的目的:
- 对钻石和闪光探测器的中子校准方法进行全面研究.
- 评估这些探测器的n-γ区分能力.
- 在等离子体环境中验证探测器性能 (ST40实验).
主要方法:
- 脉冲高度分析和脉冲形状歧视 (PSD) 用于信号表征.
- 使用-60 (60Co) 和加利福尼亚-252 (252Cf) 辐射源进行校准.
- 在ST40实验中对钻石探测器与激活进行交叉校准.
主要成果:
- 通过脉冲高度和PSD成功描述了中子和玛相互作用.
- 在ST40等离子射击期间,钻石和闪光探测器之间在中子信号采集方面达成良好协议.
- 钻石探测器和薄膜测量了可比的中子流量 (≈10^6 cm^-2 s^-1),差异约25%.
结论:
- 研究的探测器表现出有效的n-γ区分能力.
- 钻石和闪探测器适用于等离子实验中的中子诊断.
- 交叉校准提供了一种可靠的流量测定和检测器验证方法.
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