Absolute calibration of the Chandra X-ray Observatory: transfer standard solid state detectors

Shokrollah R. Serej; Edwin M. Kellogg; Richard J. Edgar; Frank Scholze; Gerhard Ulm

doi:10.1117/12.366563

22 October 1999 Absolute calibration of the Chandra X-ray Observatory: transfer standard solid state detectors

Shokrollah R. Serej, Edwin M. Kellogg, Richard J. Edgar, Frank Scholze, Gerhard Ulm

Author Affiliations +

Proceedings Volume 3765, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy X; (1999) https://doi.org/10.1117/12.366563
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

In order to achieve as close as possible to the ground calibration goal of approximately equals 1-2 percent for the Chandra X-ray Observatory, two high purity solid state detectors (SSDs) were used as transfer standards for measuring absolute x-ray flux. The calibration of these SSDs are based on the analysis of data obtained on various monochromatic and undispersed synchrotron beamlines at the BESSY electron storage ring in Berlin, Germany. Here we report on our updated analysis for determining the detector response function in the energy range 2.1-5.9 keV and on our recently completed analysis of the response function and detection efficiency measurements in the energy range 0.4-1.7 keV. The response function model used for spectral analysis of the data is based on the HYPERMET function, which is included in JMKmod within the XSPEC package.

Citation Download Citation

Shokrollah R. Serej, Shokrollah R. Serej, Edwin M. Kellogg, Edwin M. Kellogg, Richard J. Edgar, Richard J. Edgar, Frank Scholze, Frank Scholze, Gerhard Ulm, Gerhard Ulm, "Absolute calibration of the Chandra X-ray Observatory: transfer standard solid state detectors", Proc. SPIE 3765, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy X, (22 October 1999); doi: 10.1117/12.366563; https://doi.org/10.1117/12.366563

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