Pahlavani MR, Mostaar A, Nadali-Varkani J. Configuration of gamma detectors in a neutron interrogation system for detection of explosives.
Appl Radiat Isot 2017;
132:18-23. [PMID:
29128852 DOI:
10.1016/j.apradiso.2017.10.043]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 09/27/2017] [Accepted: 10/21/2017] [Indexed: 10/18/2022]
Abstract
This paper investigates the use of a suitable gamma detector array to increase the detectably of explosives in a prompt-gammas neutron activation analysis (PGNAA) system. Monte Carlo simulations (MCNP-4C) were used for analyzing the system. It was found that the system's performance is enhanced by the use of four detectors: three of the are located on the same side as the neutron source and the fourth on the opposite side. Signature-based radiation-scanning, with nine signatures for each detector, is also discussed.
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