Configuration of gamma detectors in a neutron interrogation system for detection of explosives.
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.
['Pahlavani|M R|MR|', 'Mostaar|A|A|', 'Nadali-Varkani|J|J|']
Neutron activation analysis Explosive detection Monte Carlo method SBRS technique