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Proceedings Paper

A two-pixel Compton imager
Author(s): P. R. B. Saull; L. E. Sinclair; H. C. J. Seywerd; P. J. Boyle; A. M. L. MacLeod; D. S. Hanna
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Paper Abstract

We are designing a Compton imager for use in security investigations and in radiological incident remediation. Previously, results from simulations of a system consisting of several layers of pixellated solid scintillator for both the scatter and absorber detectors were reported. We have now established a two-pixel test stand for validation of the simulations. The stand consists of a single scatter pixel fixed in space, and a single absorber pixel affixed to a two-dimensional translator. Automated translation of the absorber pixel to different positions allows for the acquisition of data at multiple Compton scattering angles, thereby building up a dataset from an effectively multi-channel Compton imager. Here we present performance characteristics for an imager composed of a single 1 cm3 pixel of NaI(Tl) for the scatter detector, and a single 1 cm3 pixel of LaBr3 for the absorber detector.

Paper Details

Date Published: 5 May 2010
PDF: 11 pages
Proc. SPIE 7665, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XI, 76651E (5 May 2010); doi: 10.1117/12.852569
Show Author Affiliations
P. R. B. Saull, Institute for National Measurement Standards (Canada)
L. E. Sinclair, Geological Survey of Canada (Canada)
H. C. J. Seywerd, Geological Survey of Canada (Canada)
P. J. Boyle, McGill Univ. (Canada)
A. M. L. MacLeod, McGill Univ. (Canada)
D. S. Hanna, McGill Univ. (Canada)

Published in SPIE Proceedings Vol. 7665:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XI
Augustus Way Fountain III; Patrick J. Gardner, Editor(s)

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