Modeling the Chandra high-energy transmission gratings below 2 keV

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

doi:10.1117/12.409156

13 December 2000 Modeling the Chandra high-energy transmission gratings below 2 keV

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

Author Affiliations +

Proceedings Volume 4140, X-Ray and Gamma-Ray Instrumentation for Astronomy XI; (2000) https://doi.org/10.1117/12.409156
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

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.

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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, and Eric M. Gullikson "Modeling the Chandra high-energy transmission gratings below 2 keV", Proc. SPIE 4140, X-Ray and Gamma-Ray Instrumentation for Astronomy XI, (13 December 2000); https://doi.org/10.1117/12.409156

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