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Small-pixel x-ray hybrid CMOS detectors: a candidate for the high-definition x-ray imager on Lynx
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Paper Abstract

The High Definition X-ray Imager (HDXI) is one of three planned instruments for the next generation Lynx mission concept and would provide fine spatial resolution X-ray imaging and moderate spectral resolution over a wide field-of-view. The instrument is baselined to rapidly read out large silicon focal plane arrays consisting of small pixels. We present the most recent results from small-pixel X-ray hybrid CMOS detectors that are designed to meet these needs. These devices implement crosstalk-eliminating capacitive transimpedance amplifiers as well the ability to perform in-pixel correlated double sampling, and have achieved noise and spectral resolution approaching the notional requirements of Lynx-HDXI. Read noise as low as 5.4 e- (RMS) has been measured, along with energy resolution (FWHM) as good as 158 eV at 5.9 keV, 78 eV at 0.52 keV, and 71 eV at 0.28 keV.

Paper Details

Date Published: 9 September 2019
PDF: 8 pages
Proc. SPIE 11118, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXI, 111180G (9 September 2019); doi: 10.1117/12.2528537
Show Author Affiliations
Samuel V. Hull, The Pennsylvania State Univ. (United States)
Abraham D. Falcone, The Pennsylvania State Univ. (United States)
Mitchell Wages, The Pennsylvania State Univ. (United States)
David N. Burrows, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 11118:
UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXI
Oswald H. Siegmund, Editor(s)

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