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

Samuel V. Hull, Abraham D. Falcone, Mitchell Wages, David N. Burrows

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish (US)
Title of host publicationUV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXI
EditorsOswald H. Siegmund
PublisherSPIE
ISBN (Electronic)9781510629295
DOIs
StatePublished - Jan 1 2019
EventUV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXI 2019 - San Diego, United States
Duration: Aug 11 2019Aug 13 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11118
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceUV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXI 2019
CountryUnited States
CitySan Diego
Period8/11/198/13/19

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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