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Proceedings Paper

Modeling the Chandra high-energy transmission gratings below 2 keV
Author(s): Kathryn A. Flanagan; Thomas H. Markert; John E. Davis; Mark L. Schattenburg; Richard L. Blake; Frank Scholze; Peter Bulicke; R. Fliegauf; S. Kraft; Gerhard Ulm; Eric M. Gullikson
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Paper Abstract

The High Energy Transmission Grating Spectrometer of the Chandra X-Ray Observatory is a high spectral resolution instrument utilizing gold X-ray transmission gratings. The gratings have been subjected to a rigorous program of calibration, including testing at synchrotron facilities for the purpose of refining and testing the grating model. Here we conclude our investigation of the optical constants of gold, extending it below 2 keV to complete the coverage over the Chandra energy range. We investigate the carbon, nitrogen, oxygen and chromium edge structures introduced by the grating support membrane. Finally, we summarize the state of the grating model, identifying those energy regions where the residuals are most significant and suggesting where the model might be improved.

Paper Details

Date Published: 13 December 2000
PDF: 14 pages
Proc. SPIE 4140, X-Ray and Gamma-Ray Instrumentation for Astronomy XI, (13 December 2000); doi: 10.1117/12.409156
Show Author Affiliations
Kathryn A. Flanagan, Massachusetts Institute of Technology (United States)
Thomas H. Markert, Massachusetts Institute of Technology (United States)
John E. Davis, Massachusetts Institute of Technology (United States)
Mark L. Schattenburg, Massachusetts Institute of Technology (United States)
Richard L. Blake, R&D Services, Inc. (United States)
Frank Scholze, Physikalisch-Technische Bundesanstalt (Germany)
Peter Bulicke, Physikalisch-Technische Bundesanstalt (Germany)
R. Fliegauf, Physikalisch-Technische Bundesanstalt (Germany)
S. Kraft, Physikalisch-Technische Bundesanstalt (Germany)
Gerhard Ulm, Physikalisch-Technische Bundesanstalt (Germany)
Eric M. Gullikson, Lawrence Berkeley National Lab. (United States)


Published in SPIE Proceedings Vol. 4140:
X-Ray and Gamma-Ray Instrumentation for Astronomy XI
Kathryn A. Flanagan; Oswald H. W. Siegmund, Editor(s)

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