11 July 1997 Toward the calibration of the HETGS effective area
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Abstract
The high-energy transmission grating for AXAF was tested with the AXAF high resolution mirror assembly during December 1996 through April 1997 at NASA's MSFC X-Ray Calibration Facility. This first-use of the HETG confirms sub-assembly measurements and demonstrates the power of this AXAF grating spectrometer. This paper discusses calibration goals, summarizes the pre- XRCF performance predictions, describes the XRCF data taken, and outlines the general approach to their analysis -- concentrating on the HETG contribution to the HETGS effective area. Very preliminary examples of the analysis of the XRCF data are presented. At a crude level (approximately equal to 30%) the data are in agreement with sub-assembly predictions. Future detailed analysis will result in a definitive instrument calibration.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Daniel Dewey, Kathryn A. Flanagan, Herman L. Marshall, C. Baluta, Claude R. Canizares, D. S. Davis, John E. Davis, T. T. Fang, D. P. Huenemoerder, Joel H. Kastner, Norbert S. Schulz, Michael W. Wise, Jeremy J. Drake, Jiahong Zhang Juda, Michael Juda, A. C. Brinkman, C. J. Th. Gunsing, Jelle S. Kaastra, Gisela D. Hartner, Peter Predehl, "Toward the calibration of the HETGS effective area", Proc. SPIE 3113, Grazing Incidence and Multilayer X-Ray Optical Systems, (11 July 1997); doi: 10.1117/12.278843; https://doi.org/10.1117/12.278843
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