Increased Range Neutron Response High Explosives Detection

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9451-06-M-0131
Agency Tracking Number: F061-007-3083
Amount: $99,176.00
Phase: Phase I
Program: SBIR
Awards Year: 2006
Solicitation Year: 2006
Solicitation Topic Code: AF06-007
Solicitation Number: 2006.1
Small Business Information
GALT LLC
5714 West 71st Pl, Arvada, CO, 80003
DUNS: 614133903
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Byron Wells
 Technical Officer
 (303) 335-7688
 wells@galtresearch.com
Business Contact
 Byron Wells
Title: Technical Officer
Phone: (303) 335-7688
Email: wells@galtresearch.com
Research Institution
N/A
Abstract
The coupling of a pulsed neutron source and a depth-sensitive Compton camera based on fast inorganic scintillation crystals is proposed as a means for imaging high explosives and other materials at intermediate to long ranges. The use of scintillators allows one to deploy relatively large active detection areas, which are crucial if short measurement times are going to be achieved. The temporal response of the fast scintillation component of the BaF2 crystals that we intend to use during Phase I will not only allow precise depth-imaging, but they will also enable the position-sensing of the gamma-ray interaction location. The main focus of the Phase I research is optimizing the spatial resolution of a fast scintillation crystal bounded by two photomultiplier tubes using both: a) the variation in scintillation light intensity that reaches the ends of the crystal, and b) using the time-of-arrival differences between the measured light pulses. The results from both methods will be quantified and the optimal design will be tested using a diagnostic detector based on two-components. The angular resolution will be measured and modeled and the performance of the full-scale detector will thus be established, the fabrication of which will proceed during Phase II.

* information listed above is at the time of submission.

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