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Proceedings Paper

Modeling contamination migration on the Chandra X-ray Observatory: III
Author(s): Stephen L. O'Dell; Douglas A. Swartz; Neil W. Tice; Paul P. Plucinsky; Catherine E. Grant; Herman L. Marshall; Alexey A. Vikhlinin; Allyn F. Tennant; Matthew T. Dahmer
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Paper Abstract

During its first 16 years of operation, the cold (about -60°C) optical blocking filter of the Advanced CCD Imaging Spectrometer (ACIS), aboard the Chandra X-ray Observatory, has accumulated a growing layer of molecular contamination that attenuates low-energy x rays. Over the past few years, the accumulation rate, spatial distribution, and composition have changed. This evolution has motivated further analysis of contamination migration within and near the ACIS cavity, in part to evaluate potential bake-out scenarios intended to reduce the level of contamination.

Paper Details

Date Published: 18 September 2015
PDF: 13 pages
Proc. SPIE 9601, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIX, 960107 (18 September 2015); doi: 10.1117/12.2188396
Show Author Affiliations
Stephen L. O'Dell, NASA Marshall Space Flight Ctr. (United States)
Douglas A. Swartz, Universities Space Research Assoc. (United States)
Neil W. Tice, Massachusetts Institute of Technology (United States)
Paul P. Plucinsky, Smithsonian Astrophysical Observatory (United States)
Catherine E. Grant, Massachusetts Institute of Technology (United States)
Herman L. Marshall, Massachusetts Institute of Technology (United States)
Alexey A. Vikhlinin, Smithsonian Astrophysical Observatory (United States)
Allyn F. Tennant, NASA Marshall Space Flight Ctr. (United States)
Matthew T. Dahmer, Northrop Grumman (United States)


Published in SPIE Proceedings Vol. 9601:
UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIX
Oswald H. Siegmund, Editor(s)

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