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Proceedings Paper

The Raytheon-SORDS trimodal imager
Author(s): Michael V. Hynes; Maurice Toolin; Bernard Harris; John McElroy; Mark S. Wallace; Larry J. Schultz; Mark Galassi; Andrew Hoover; Michal Mocko; David Palmer; Shawn Tornga; Daniel Wakeford; H. R. Andrews; E. T. H. Clifford; Liqian Li; Nick Bray; Darren Locklin; Richard Lanza; Berthold Horn; David Wehe
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Paper Abstract

The Raytheon Trimodal Imager (TMI) uses coded aperture and Compton imaging technologies as well as the nonimaging shadow technology to locate an SNM or radiological threat in the presence of background. The coded aperture imaging is useful for locating and identifying radiological threats as these threats generally emit lower energy gammas whereas the Compton imaging is useful for SNM threats as in addition to low energy gammas which can be shielded, SNM threats emit higher energy gammas as well. The shadow imaging technology utilizes the structure of the instrument and its vehicle as shadow masks for the individual detectors which shadow changes as the vehicle moves through the environment. Before a radioactive source comes into the fields of view of the imagers it will appear as a shadow cast on the individual detectors themselves. This gives the operator advanced notice that the instrument is approaching something that is radiological and on which side of the vehicle it is located. The two nuclear images will be fused into a combined nuclear image along with isotope ID. This combined image will be further fused with a real-time image of the locale where the vehicle is passing. A satellite image of the locale will also be made available. This instrument is being developed for the Standoff Radiation Detection System (SORDS) program being conducted by Domestic Nuclear Detection Office (DNDO) of the Department of Homeland Security (DHS).

Paper Details

Date Published: 30 April 2009
PDF: 7 pages
Proc. SPIE 7310, Non-Intrusive Inspection Technologies II, 731003 (30 April 2009); doi: 10.1117/12.818735
Show Author Affiliations
Michael V. Hynes, Raytheon Co. (United States)
Maurice Toolin, Raytheon Co. (United States)
Bernard Harris, Raytheon Co. (United States)
John McElroy, Raytheon Co. (United States)
Mark S. Wallace, Los Alamos National Lab. (United States)
Larry J. Schultz, Los Alamos National Lab. (United States)
Mark Galassi, Los Alamos National Lab. (United States)
Andrew Hoover, Los Alamos National Lab. (United States)
Michal Mocko, Los Alamos National Lab. (United States)
David Palmer, Los Alamos National Lab. (United States)
Shawn Tornga, Los Alamos National Lab. (United States)
Daniel Wakeford, Bubble Technology Industries, Inc. (Canada)
H. R. Andrews, Bubble Technology Industries, Inc. (Canada)
E. T. H. Clifford, Bubble Technology Industries, Inc. (Canada)
Liqian Li, Bubble Technology Industries, Inc. (Canada)
Nick Bray, Bubble Technology Industries, Inc. (Canada)
Darren Locklin, Bubble Technology Industries, Inc. (Canada)
Richard Lanza, Massachusetts Institute of Technology (United States)
Berthold Horn, Massachusetts Institute of Technology (United States)
David Wehe, Univ. of Michigan (United States)

Published in SPIE Proceedings Vol. 7310:
Non-Intrusive Inspection Technologies II
Brandon W. Blackburn, Editor(s)

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