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

Shen Wang; Jian-Hua Guo; Yan Zhang; Wei Chen

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

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摘要

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 out 8×8 anode 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%(fullwidth 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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《核技术：英文版》 |2019年第3期|53-58|共6页
作者
Shen Wang; Jian-Hua Guo; Yan Zhang; Wei Chen;
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作者单位

Purple Mountain Observatory;

Chinese Academy of Sciences;

Key Laboratory of Dark Matter and Space Astronomy;

Chinese Academy of Sciences;

School of Astronomy and Space Science;

University of Science and Technology of China;

University of Chinese Academy of Science;

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原文格式 PDF
正文语种 chi
中图分类原子能技术;
关键词
CdZnTe; Readout; system; Solar; observation; Hard; X-ray; imager;

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

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