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Proceedings Paper

Position resolution performance of prototype segmented CdZnTe arrays
Author(s): Ann M. Parsons; David M. Palmer; Peter Kurczynski; Louis M. Barbier; Scott D. Barthelmy; Lyle M. Bartlett; Neil A. Gehrels; John F. Krizmanic; Carl Michael Stahle; Jack Tueller; Bonnard J. Teegarden
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Paper Abstract

The burst and all sky imaging survey (BASIS) is a proposed mission to provide plus or minus 3 arc-second locations of an estimated 90 gamma-ray bursts (GRBs) per year. The BASIS coded aperture imaging system requires a segmented detector plane able to detect the position of photon absorption to less than 100 microns. To develop prototype detector arrays with such fine position resolution we have fabricated many 15 mm by 15 mm by 2 mm 100 micron pitch CdZnTe strip detectors. A 2 by 2 prototype 100 micron CdZnTe strip detector array has been fabricated and has been used to test the capabilities of the BASIS imaging system. Preliminary shadowgrams of a 1 mm wide gap between two tungsten straight edges indicate that our position resolution is on the order of 69 micrometers. Both the array and imaging tests are described. A 6 by 6 element CdZnTe detector array is also being fabricated at GSFC. The assembly of this flight prototype array is discussed as well as applications for BASIS.

Paper Details

Date Published: 15 October 1997
PDF: 8 pages
Proc. SPIE 3114, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VIII, (15 October 1997); doi: 10.1117/12.283778
Show Author Affiliations
Ann M. Parsons, NASA Goddard Space Flight Ctr. (United States)
David M. Palmer, Universities' Space Research Association (United States)
Peter Kurczynski, Univ. of Maryland (United States)
Louis M. Barbier, NASA Goddard Space Flight Ctr. (United States)
Scott D. Barthelmy, Universities' Space Research Association (United States)
Lyle M. Bartlett, NASA Goddard Space Flight Ctr. (United States)
Neil A. Gehrels, NASA Goddard Space Flight Ctr. (United States)
John F. Krizmanic, Universities' Space Research Association (United States)
Carl Michael Stahle, Orbital Sciences Corp. (United States)
Jack Tueller, NASA Goddard Space Flight Ctr. (United States)
Bonnard J. Teegarden, Goddard Space Flight Center/NASA (United States)


Published in SPIE Proceedings Vol. 3114:
EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VIII
Oswald H. W. Siegmund; Mark A. Gummin, Editor(s)

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