Acquisition of prompt gamma-ray spectra induced by 14 MeV neutrons and comparison with Monte Carlo simulations

作者：El Kanawati W; Perot B^*; Carasco C; Eleon C; Valkovic V; Sudac D; Obhodas J; Sannie G

来源：Applied Radiation and Isotopes, 2011, 69(5): 732-743.

DOI：10.1016/j.apradiso.2011.01.010

• Associated particle technique
• Fast neutron interrogation
• Explosives and illicit drugs detection
• Material identification
• Monte Carlo simulation

Gamma-ray spectra produced in carbon, nitrogen, oxygen, sodium, aluminium, silicon, chlorine, calcium, chromium, iron, nickel, copper, zinc, and lead by 14 MeV tagged neutrons have been collected with NaI(T1) detectors of the EURITRACK system, which low-energy threshold has been reduced to 0.6 MeV to detect gamma rays of major elements like iron. The spectra have been compared with Monte Carlo simulations to check the tabulated gamma-ray production data. A quantitative approach to subtract the scattered neutron background is also reported.

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