A dual-energy transmission detector for vehicle scanning using wavelength-shifting fibers

Seth Van Liew; Ming Zhang

doi:10.1117/12.2063789

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5 September 2014 A dual-energy transmission detector for vehicle scanning using wavelength-shifting fibers

Seth Van Liew, Ming Zhang

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Proceedings Volume 9213, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XVI; 92130U (2014) https://doi.org/10.1117/12.2063789
Event: SPIE Optical Engineering + Applications, 2014, San Diego, California, United States

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.

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Seth Van Liew and Ming Zhang "A dual-energy transmission detector for vehicle scanning using wavelength-shifting fibers", Proc. SPIE 9213, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XVI, 92130U (5 September 2014); https://doi.org/10.1117/12.2063789

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