Share Email Print
cover

Proceedings Paper

Arc-second source positions with a prototype BASIS imaging system
Author(s): David M. Palmer; Ann M. Parsons; Peter Kurczynski; Louis M. Barbier; Scott D. Barthelmy; Lyle M. Bartlett; Edward E. Fenimore; Neil A. Gehrels; John F. Krizmanic; Derrick C. Mancini; Carl Michael Stahle; Jack Tueller; Bonnard J. Teegarden
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The burst and all-sky imaging survey (BASIS) project is a proposed small explorer (SMEX) mission to image the gamma-ray sky in the 10 - 150 keV energy range with high angular and energy resolution. It will be able to determine the locations of gamma-ray bursts (GRBs) to within a few arcseconds, sending accurate positions to ground-based telescopes for simultaneous and follow-up observations within seconds of the beginning of the GRB. It will also produce all-sky maps with 30 arcsecond resolution and 2 milliCrab sensitivity. The instrument uses a two-scale coded aperture mask to modulate gamma-rays falling on a cadmium zinc telluride (CZT) detector plane consisting of both 100 micrometer pitch strip detectors and 4 mm square spectroscopy detectors. The spatial pattern of gamma-rays will be deconvolved with the mask pattern to produce an image. This paper presents results from a prototype of this system, using a mask and strip detectors to produce an image of a radioactive source. The prototype functions as expected, producing images which, when scaled to the dimensions of the proposed instrument, achieve the desired resolution.

Paper Details

Date Published: 15 October 1997
PDF: 7 pages
Proc. SPIE 3114, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VIII, (15 October 1997); doi: 10.1117/12.283784
Show Author Affiliations
David M. Palmer, Universities' Space Research Association (United States)
Ann M. Parsons, NASA Goddard Space Flight Ctr. (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)
Edward E. Fenimore, Los Alamos National Lab. (United States)
Neil A. Gehrels, NASA Goddard Space Flight Ctr. (United States)
John F. Krizmanic, NASA Goddard Space Flight Ctr. (United States)
Derrick C. Mancini, Argonne National Lab. (United States)
Carl Michael Stahle, Orbital Sciences Corp. (United States)
Jack Tueller, NASA Goddard Space Flight Ctr. (United States)
Bonnard J. Teegarden, NASA Goddard Space Flight Ctr. (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)

© SPIE. Terms of Use
Back to Top