High-resolution pixelated CdZnTe detector prototype system for solar hard X-ray imager

High-resolution pixelated CdZnTe detector prototype system for solar hard X-ray imager
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用于太阳能硬 X 射线成像仪的高分辨率像素化 CdZnTe 探测器原型系统

DOI:
10.1007/s41365-019-0571-9
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发表时间:
2019-03
影响因子:
2.8
通讯作者:
Chen Wei
Chen Wei
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Wang Shen;Guo Jian Hua;Zhang Yan;Chen Wei

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设计了一个用于像素化CdZnTe探测器的多通道低噪声电子学原型系统。该系统是太阳硬X射线成像仪初步工作的成果,该成像仪是未来太阳观测卫星-高级天基太阳观测卫星的三个有效载荷之一。一个新的电荷敏感放大器专用集成电路,VATA 450.3,与片上模数转换器,用于读出阳极像素信号。测试了两个厚度为2 mm和5 mm的CdZnTe探测器。2 mm厚的探测器在59.5 keV下的能量分辨率优于5%(半高全宽,FWHM),5 mm厚的探测器在662 keV下的能量分辨率优于1.2%(FWHM)。本文讨论了原型系统的设计和测试结果。
A multichannel low-noise electronic prototype system was designed for a pixelated CdZnTe detector. This system is the result of preliminary work on a solar hard X-ray imager, which is one of the three payloads for future solar observations satellite- Advanced Space-based Solar Observatory (ASO-S). A new charge-sensitive amplifier application-specific integrated circuit, VATA450.3, with an on-chip analog-to-digital converter, is used to read outanode pixel signals. Two CdZnTe detectors with a thickness of 2 mm and 5 mm were tested. The 2-mm-thick detector achieved energy resolution better than 5% (full-width at half-maximum, FWHM) at 59.5 keV, and the 5-mm-thick detector had better resolution than 1.2% (FWHM) at 662 keV. The design and test results of the prototype system are discussed in this paper.
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影响因子: 1.8
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