研究中子,质子和辐射探测器使用两光子吸收-短暂电流技术
Sebastian Pape1,2, Marcos Fernández García1,3, Michael Moll1
1CERN, Esplanade des Particules 1, 1217 Meyrin, Switzerland.
Sensors (Basel, Switzerland)
|August 29, 2024
概括
两光子吸收 - 短暂电流技术 (TPA-TCT) 在暴露于辐射后有效地表征探测器. 中子和质子辐射会导致独特的吸收效应和电场变化,而这些变化在马射线中是看不到的.
科学领域:
- 半导体设备物理学的物理
- 在材料中的辐射效应.
- 光子学和光学技术的技术.
背景情况:
- 两光子吸收 - 短暂电流技术 (TPA-TCT) 为设备特征提供3D空间分辨率.
- 了解辐射诱导的影响对于在恶劣环境中探测器可靠性至关重要.
研究的目的:
- 在p型探测器中研究辐射诱导对TPA-TCT性能的影响.
- 分析中子,质子和玛辐射对探测器性能的影响.
主要方法:
- 使用TPA-TCT与激光光在二次吸收模式.
- 用中子,质子和玛射线辐射p型片探测器,直至高流量/剂量.
- 分析过多的电荷载体漂移和电场分布.
主要成果:
- 与玛辐射不同,中子和质子辐射诱导了额外的线性吸收,与集群损伤和非电离能量损失有关.
- 该研究研究了辐射对两光子吸收系数和潜在激光束耗尽的影响.
- 电场调查揭示了与高流量中中子辐射探测器相比,质子辐射探测器中的反转空间电荷.
结论:
- TPA-TCT对探测器中辐射诱导的变化敏感.
- 不同的辐射类型 (中子,质子,玛) 对探测器特性和TPA-TCT响应产生不同的影响.
- 这些发现为探测器降解机制和辐射下的性能提供了洞察力.
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