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Proceedings Paper

Calibration of Chandra's near on-axis optical performance
Author(s): Diab H. Jerius; Terrance J. Gaetz; Margarita Karovska
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Paper Abstract

The Chandra X-Ray telescope has excellent angular resolution for on-axis sources. While the Wolter type I design optimizes on-axis performance, there is a relatively large region in which 0.5" to 1" imaging is possible. The Chandra PSF was first characterized during ground calibration and, most recently, from actual on-orbit measurements. The ground calibration provided data with the highest signal to noise but, because of gravity-induced distortions of the optics, could not completely characterize their performance. We present the results of on-orbit calibrations of the optics' performance, focusing on the near on-axis field of view. We present for the first time an analysis of the energy dependence of the on-orbit PSF.

Paper Details

Date Published: 3 February 2004
PDF: 12 pages
Proc. SPIE 5165, X-Ray and Gamma-Ray Instrumentation for Astronomy XIII, (3 February 2004); doi: 10.1117/12.509359
Show Author Affiliations
Diab H. Jerius, Smithsonian Astrophysical Observatory (United States)
Terrance J. Gaetz, Smithsonian Astrophysical Observatory (United States)
Margarita Karovska, Smithsonian Astrophysical Observatory (United States)


Published in SPIE Proceedings Vol. 5165:
X-Ray and Gamma-Ray Instrumentation for Astronomy XIII
Kathryn A. Flanagan; Oswald H. W. Siegmund, Editor(s)

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