A two-pixel Compton imager

P. R. B. Saull; L. E. Sinclair; H. C. J. Seywerd; P. J. Boyle; A. M. L. MacLeod; D. S. Hanna

doi:10.1117/12.852569

5 May 2010 A two-pixel Compton imager

P. R. B. Saull, L. E. Sinclair, H. C. J. Seywerd, P. J. Boyle, A. M. L. MacLeod, D. S. Hanna

Proceedings Volume 7665, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XI; 76651E (2010) https://doi.org/10.1117/12.852569
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

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.

Citation Download Citation

P. R. B. Saull, L. E. Sinclair, H. C. J. Seywerd, P. J. Boyle, A. M. L. MacLeod, and D. S. Hanna "A two-pixel Compton imager", Proc. SPIE 7665, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XI, 76651E (5 May 2010); https://doi.org/10.1117/12.852569

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