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Proceedings Paper

InFOCuS hard x-ray telescope: pixellated CZT detector/shield performance and flight results
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Paper Abstract

The CZT detector on the Infocus hard X-ray telescope is a pixellated solid-state device capable of imaging spectroscopy by measuring the position and energy of each incoming photon. The detector sits at the focal point of an 8m focal length multilayered grazing incidence X-ray mirror which has significant effective area between 20-40 keV. The detector has an energy resolution of 4.0 keV at 32 keV, and the Infocus telescope has an angular resolution of 2.2 arcminute and a field of view of about 10 arcminutes. Infocus flew on a balloon mission in July 2001 and observed Cygnus X-1. We present results from laboratory testing of the detector to measure the uniformity of response across the detector, to determine the spectral resolution, and to perform a simple noise decomposition. We also present a hard X-ray spectrum and image of Cygnus X-1, and measurements of the hard X-ray CZT background obtained with the SWIN detector on Infocus.

Paper Details

Date Published: 11 March 2003
PDF: 12 pages
Proc. SPIE 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy, (11 March 2003); doi: 10.1117/12.461491
Show Author Affiliations
Wayne H. Baumgartner, NASA Goddard Space Flight Ctr. (United States)
Univ. of Maryland/College Park (United States)
Jack Tueller, NASA Goddard Space Flight Ctr. (United States)
Hans Krimm, NASA Goddard Space Flight Ctr. (United States)
Scott D. Barthelmy, NASA Goddard Space Flight Ctr. (United States)
Fred Berendse, NASA Goddard Space Flight Ctr. (United States)
Univ. of Maryland/College Park (United States)
L. Ryan, NASA Goddard Space Flight Ctr. (United States)
F. B. Birsa, NASA Goddard Space Flight Ctr. (United States)
Takashi Okajima, Nagoya Univ. (Japan)
NASA Goddard Space Flight Ctr. (United States)
Hideyo Kunieda, Institute of Space and Astronautical Science (Japan)
Yasushi Ogasaka, Nagoya Univ. (Japan)
Yuzuru Tawara, Nagoya Univ. (Japan)
Keisuke Tamura, Nagoya Univ. (Japan)


Published in SPIE Proceedings Vol. 4851:
X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy
Joachim E. Truemper; Harvey D. Tananbaum, Editor(s)

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