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Journal of Astronomical Telescopes, Instruments, and Systems

Directly deposited optical-blocking filters for single-photon x-ray imaging spectroscopy
Author(s): Kevin K. Ryu; Marshall W. Bautz; Steven E. Kissel; Peter O'Brien; Vyshnavi Suntharalingam
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Paper Abstract

Directly deposited optical-blocking filters (DD OBFs) have the potential to improve filter performance and lower risk and cost for future x-ray imaging spectroscopy missions. However, they have not been fully characterized on high-performance charge coupled devices (CCDs). This paper reports the results of DD OBFs processed on high-performance photon-counting CCDs. It is found that CCD performance is not degraded by deposition of such filters. X-ray and optical transmission through the OBF is characterized and found to match theoretical expectation. Light-leaks through pinholes and the side and back surfaces are found to lower the optical extinction ratio; various coating processes are developed to resolve these issues.

Paper Details

Date Published: 28 June 2017
PDF: 7 pages
J. Astron. Telesc. Instrum. Syst. 3(3) 036001 doi: 10.1117/1.JATIS.3.3.036001
Published in: Journal of Astronomical Telescopes, Instruments, and Systems Volume 3, Issue 3
Show Author Affiliations
Kevin K. Ryu, MIT Lincoln Lab. (United States)
Marshall W. Bautz, Massachusetts Institute of Technology (United States)
Steven E. Kissel, Massachusetts Institute of Technology (United States)
Peter O'Brien, MIT Lincoln Lab. (United States)
Vyshnavi Suntharalingam, MIT Lincoln Lab. (United States)

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