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

  • Shen Wang
  • Jian-Hua GuoEmail author
  • Yan Zhang
  • Wei Chen
Article

Abstract

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 \(8 \times 8\) 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% (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.

Keywords

CdZnTe Readout system Solar observation Hard X-ray imager 

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Copyright information

© China Science Publishing & Media Ltd. (Science Press), Shanghai Institute of Applied Physics, the Chinese Academy of Sciences, Chinese Nuclear Society and Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Shen Wang
    • 1
    • 2
    • 3
  • Jian-Hua Guo
    • 1
    • 2
    • 3
    Email author
  • Yan Zhang
    • 1
    • 2
  • Wei Chen
    • 1
    • 2
    • 4
  1. 1.Purple Mountain ObservatoryChinese Academy of SciencesNanjingChina
  2. 2.Key Laboratory of Dark Matter and Space AstronomyChinese Academy of SciencesNanjingChina
  3. 3.School of Astronomy and Space ScienceUniversity of Science and Technology of ChinaNanjingChina
  4. 4.University of Chinese Academy of ScienceBeijingChina

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