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Title: Associated particle technique in single-sided geometry for detection of explosives

Associated particle technique (APT) for detection of explosives is well established but has been implemented mostly for fixed portal systems. In certain situations, a portable system is required where the suspect object cannot be moved from site. This paper discusses the development of a portable APT system in single-sided geometry which can be transported to site and requires only one-sided access to the object. The system comprised D-T neutron source and bismuth germanate (BGO) detectors fixed on a portable module. Different aspects of the system have been discussed such as background contribution, time selection, and elemental signatures. The system was used to detect benign samples and explosive simulants under laboratory condition. The elemental ratios obtained by analyzing the gamma spectra show good match with the theoretical ratios.
Authors:
; ; ; ; ; ;  [1]
  1. Neutron and X-Ray Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085 (India)
Publication Date:
OSTI Identifier:
22398797
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 12; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; BGO DETECTORS; BISMUTH COMPOUNDS; EXPLOSIVES; FAST NEUTRONS; GAMMA DETECTION; GAMMA SPECTRA; GERMANATES; NEUTRON SOURCES; PORTAL SYSTEM