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Proceedings Paper

A dual-energy transmission detector for vehicle scanning using wavelength-shifting fibers
Author(s): Seth Van Liew; Ming Zhang
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Paper Abstract

A new dual energy detector for vehicle scanning is presented. The system is composed of a three-sided Compton backscatter imaging system utilizing flying-spot x-rays concurrent with a transmission detector using the same x-ray beam. This detector is under the vehicle and is thin enough to be driven over with a modest bump which does not impede vehicle trac. It uses sheet scintillator with wavelength-shifting fibers as light pipes. Results are presented on steel penetration, calibration procedures and issues, and dual energy performance. The system’s dose is low enough for scanning people, including passenger vehicles.

Paper Details

Date Published: 5 September 2014
PDF: 9 pages
Proc. SPIE 9213, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XVI, 92130U (5 September 2014); doi: 10.1117/12.2063789
Show Author Affiliations
Seth Van Liew, American Science and Engineering, Inc. (United States)
Ming Zhang, American Science and Engineering, Inc. (United States)

Published in SPIE Proceedings Vol. 9213:
Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XVI
Arnold Burger; Larry Franks; Ralph B. James; Michael Fiederle, Editor(s)

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