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Simulated and measured neutron/gamma light output distribution for poly-energetic neutron/gamma sources

Hosseini, S. A ; Sharif University of Technology | 2018

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  1. Type of Document: Article
  2. DOI: 10.1088/1748-0221/13/03/P03005
  3. Publisher: Institute of Physics Publishing , 2018
  4. Abstract:
  5. In the present paper, the light output distribution due to poly-energetic neutron/gamma (neutron or gamma) source was calculated using the developed MCNPX-ESUT-PE (MCNPX-Energy engineering of Sharif University of Technology-Poly Energetic version) computational code. The simulation of light output distribution includes the modeling of the particle transport, the calculation of scintillation photons induced by charged particles, simulation of the scintillation photon transport and considering the light resolution obtained from the experiment. The developed computational code is able to simulate the light output distribution due to any neutron/gamma source. In the experimental step of the present study, the neutron-gamma discrimination based on the light output distribution was performed using the zero crossing method. As a case study, 241Am-9Be source was considered and the simulated and measured neutron/gamma light output distributions were compared. There is an acceptable agreement between the discriminated neutron/gamma light output distributions obtained from the simulation and experiment. © 2018 IOP Publishing Ltd and Sissa Medialab
  6. Keywords:
  7. Gamma detectors (scintillators, CZT, HPG, HgI etc) ; Instrumentation for neutron sources ; Neutron detectors (cold, thermal, fast neutrons) ; Photon detectors for UV, visible and IR photons (gas) ; Charged particles ; Light ; Mercury compounds ; Neutron sources ; Photons ; Scintillation ; Computational codes ; Fast neutrons ; Gamma detectors ; Neutron-gamma discriminations ; Photon detector ; Scintillation photons ; University of technologies ; Zero crossing methods ; Neutrons
  8. Source: Journal of Instrumentation ; Volume 13, Issue 3 , March , 2018 ; 17480221 (ISSN)
  9. URL: https://iopscience.iop.org/article/10.1088/1748-0221/13/03/P03005