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Proceedings Paper

Bismuth Germanate (BGO) array for spectroscopy of gamma pulse
Author(s): Fletcher J. Goldin; Edward J. McCrea; Richard E. Stewart
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Paper Abstract

For a sufficiently short gamma pulse, pile-up prohibits conventional PHA spectroscopy, which depends on temporal separation to distinguish individual counts. For such pulse applications, we are developing a spectrometer which detects and records individual gamma photon signals simultaneously in independent parallel channels. This is a two-dimensional array of BGO scintillation elements, each of which is a high-aspect ratio, square-section cylinder. The elements are closely packed in a regular rectangular array, and separated by reflective walls which optically isolate the elements and channel the visible light to the end. The array is oriented with the elements end-on to the gamma source. The downstream array face is imaged, and a histogram of the light levels of the individual elements corresponds to a gamma spectrum. We report on tests performed on the array component intended for such a system.

Paper Details

Date Published: 18 October 1996
PDF: 9 pages
Proc. SPIE 2806, Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions, (18 October 1996); doi: 10.1117/12.254003
Show Author Affiliations
Fletcher J. Goldin, Bechtel Nevada Corp. (United States)
Edward J. McCrea, Bechtel Nevada Corp. (United States)
Richard E. Stewart, Lawrence Livermore National Lab. (United States)

Published in SPIE Proceedings Vol. 2806:
Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions
Brian D. Ramsey; Thomas A. Parnell, Editor(s)

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