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Proceedings Paper

Progress in x-ray CCD sensor performance for the Astro-E2 X-ray imaging spectrometer
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Paper Abstract

We have developed X-ray CCD sensors for the Astro-E2 X-ray Imaging Spectrometer. Here we describe the performance benefits obtained from two innovations implemented in the CCD detectors developed for this instrument. First, we discuss the improved radiation tolerance afforded by a novel charge-injection structure. Second, we demonstrate for the first time the potential of a previously-developed chemisorption charging backside treatment process to produce back-illuminated X-ray sensors with excellent soft X-ray spectral resolution as well as improved quantum efficiency. We describe the changes in X-ray event detection algorithms required to obtain this improved performance, and briefly compare the performance of XIS sensors to that of back-illuminated detectors currently operating on-orbit.

Paper Details

Date Published: 29 September 2004
PDF: 12 pages
Proc. SPIE 5501, High-Energy Detectors in Astronomy, (29 September 2004); doi: 10.1117/12.553198
Show Author Affiliations
Mark W. Bautz, MIT Ctr. for Space Research (United States)
Steven E. Kissel, MIT Ctr. for Space Research (United States)
Gregory Y. Prigozhin, MIT Ctr. for Space Research (United States)
Beverly LaMarr, MIT Ctr. for Space Research (United States)
Barry E. Burke, MIT Lincoln Lab. (United States)
James A. Gregory, MIT Lincoln Lab. (United States)

Published in SPIE Proceedings Vol. 5501:
High-Energy Detectors in Astronomy
Andrew D. Holland, Editor(s)

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