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Proceedings Paper

ASTRO-E high-resolution x-ray spectrometer
Author(s): Richard L. Kelley; Michael Damian Audley; Kevin R. Boyce; Susan R. Breon; Ryuichi Fujimoto; Keith C. Gendreau; Stephen S. Holt; Yoshitaka Ishisaki; Dan McCammon; Tatehiro Mihara; Kazuhisa Mitsuda; Samuel Harvey Moseley; David Brent Mott; Frederick Scott Porter; Caroline Kilbourn Stahle; Andrew E. Szymkowiak
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Paper Abstract

The Astro-E High Resolution X-ray Spectrometer (XRS) was developed jointly by the NASA/Goddard Space Flight Center and the Institute of Space and Astronomical Science in Japan. The instrument is based on a new approach to spectroscopy, the x-ray microcalorimeter. This device senses the energies of individual x-ray photons as heat with extreme precision. A 32 channel array of microcalorimeters is being employed, each with an energy resolution of about 12 eV at 6 keV. This will provide spectral resolving power 10 times higher than any other non-dispersive x-ray spectrometer. The instrument incorporates a three stage cooling system capable of operating the array at 60 mK for about two years in orbit. The array sits at the focus of a grazing incidence conical mirror. The quantum efficiency of the microcalorimeters and the reflectivity of the x-ray mirror system combine to give high throughput over the 0.3- 12 keV energy band. This new capability will enable the study of a wide range of high-energy astrophysical sources with unprecedented spectral sensitivity. This paper presents the basic design requirements and implementation of the XRS, and also describes the instrument parameters and performance.

Paper Details

Date Published: 22 October 1999
PDF: 14 pages
Proc. SPIE 3765, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy X, (22 October 1999); doi: 10.1117/12.366493
Show Author Affiliations
Richard L. Kelley, NASA Goddard Space Flight Ctr. (United States)
Michael Damian Audley, Universities' Space Research Association and Institute of Space and Astronautical Science (Japan)
Kevin R. Boyce, NASA Goddard Space Flight Ctr. (United States)
Susan R. Breon, NASA Goddard Space Flight Ctr. (United States)
Ryuichi Fujimoto, Institute of Space and Astronautical Science (Japan)
Keith C. Gendreau, Univ. of Maryland/College Park (United States)
Stephen S. Holt, NASA Goddard Space Flight Ctr. (United States)
Yoshitaka Ishisaki, Tokyo Metropolitan Univ. (Japan)
Dan McCammon, Univ. of Wisconsin/Madison (United States)
Tatehiro Mihara, RIKEN--The Institute of Physical and Chemical Research (Japan)
Kazuhisa Mitsuda, Institute of Space and Astronautical Science (Japan)
Samuel Harvey Moseley, NASA Goddard Space Flight Ctr. (United States)
David Brent Mott, NASA Goddard Space Flight Ctr. (United States)
Frederick Scott Porter, NASA Goddard Space Flight Ctr. (United States)
Caroline Kilbourn Stahle, NASA Goddard Space Flight Ctr. (United States)
Andrew E. Szymkowiak, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 3765:
EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy X
Oswald H. W. Siegmund; Kathryn A. Flanagan, Editor(s)

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