盖亚:用于高能X射线光和光谱成像的细分探测器
Abdul K Rumaiz1, Francesca Capocasa2, Anthony J Kuczewski1
1NSLS II, Brookhaven National Laboratory, Upton, NY 11973, USA.
Journal of synchrotron radiation
|November 11, 2025
概括
我们开发了Gaia,这是一款96像素的探测器阵列,配有定制的电子设备,实现了高级X射线和玛射线检测应用的卓越能量分辨率. 该系统为科学仪器提供了高性能.
科学领域:
- 物理 物理学 物理
- 仪器科学 仪器科学
- 材料科学 材料科学 材料科学
背景情况:
- 高纯度的探测器对于各种科学领域的精确能量测量至关重要.
- 现有的探测器系统通常在能量分辨率,噪声和数据采集速度方面面临限制.
- 为了克服这些挑战,需要在集成电子和探测器技术方面取得进展.
研究的目的:
- 为了介绍盖亚单体阵列,一个新的96像素高纯度探测器系统.
- 详细介绍基于定制低噪声应用特定集成电路 (ASIC) 和基于现场可编程网关阵列 (FPGA) 的数据采集系统.
- 描述盖亚探测器模块的能量分辨率和性能.
主要方法:
- 集成96个高纯度像素探测器与定制低噪音ASIC.
- 开发基于FPGA的数据采集系统,并嵌入了Linux计算平台.
- 使用带有热隔离真空电子设备的闭环冷器在~100K的温度下运行.
主要成果:
- 在122 keV (使用57 Co) 时达到711 eV的平均能量分辨率,在5.89 keV (使用55 Fe) 时达到253 eV.
- 经过证明的稳定运行,通过隔离的真空电子来确保热稳定性.
- 实现了高性能读取架构与千兆以太网数据流.
结论:
- 盖亚探测器模块提供最先进的能量分辨率和复杂的数据采集系统.
- 开发的技术是可扩展的,目前正在制造的384像素探测器.
- 盖亚代表了科学应用的高性能辐射探测器技术的重大进步.
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