塔焦化物用于X射线和γ射线检测
Simon Johnsen1, Zhifu Liu, John A Peters
1Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA.
Journal of the American Chemical Society
|June 16, 2011
概括
二氧化 (Tl(6) SeI(4)) 显示出作为X射线和玛射线检测的优质材料的潜力. 它在室温下优于 telluride (CZT),提供可比的能量分辨率.
科学领域:
- 材料科学 材料科学 材料科学
- 核仪器仪表 核仪器仪表 核仪器仪表
- 固态物理 固态物理
背景情况:
- 高性能材料对于敏感的X射线和玛射线检测至关重要.
- 像 telluride (CZT) 这样的当前探测器在室温操作方面存在局限性.
- 合物化合物为辐射检测应用提供了一个尚未探索的领域.
研究的目的:
- 评估合物化合物Tl(6) SeI(4) 对高效的X射线和玛射线检测的潜力.
- 为了比较Tl(6) SeI(4) 与最先进的CZT材料的性能.
- 为了研究Tl(6) SeI(4) 的材料特性和载体运输特性.
主要方法:
- 合成高质量的单晶晶片的Tl(6) SeI(4).
- 测量探测器级电阻的测量.
- 评估电子和孔载体的传输特性.
- 使用Co-57辐射源进行脉冲高度光谱的性能评估.
主要成果:
- 在室温操作方面,Tl(6) SeI(4) 与CZT相比,表现出更高的优点.
- 合成的Tl6SeI4晶片具有探测器级电阻力和良好的载体移动性.
- 脉冲高度光谱显示能量分辨率相当于商业CZT探测器.
结论:
- Tl(6) SeI(4) 是下一代X射线和马射线探测器的一个有前途的材料.
- 该材料在室温下的性能表明了便携式和具有成本效益的辐射检测系统的潜力.
- 对Tl6SeI4的进一步研究可能会导致核物理,医学成像和安全应用的进步.
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