Evaluation of detection efficiency and neutron scattering in NAND detector array: FLUKA simulation and experimental validation

Academic Article

Abstract

  • The light output response and efficiency of 5”×5” BC501A liquid scintillator neutron detectors composing the NAND detector array have been measured by time of flight technique using 252Cf source. Energy dependent detection efficiency was calculated using FLUKA Monte Carlo code and validated by experimental measurement. FLUKA simulation incorporated fission neutron correlation and kinematics of neutron emission from fission source determining the energy distribution of neutrons in the laboratory frame. The intrinsic features of the scintillator were studied by including particle dependent quenching and light output resolution. Comparison of FLUKA simulation of scintillation light produced by neutrons and gamma rays with measurements provided realistic results. The calculated neutron detection efficiency at ∼0.5 MeV threshold reproduces the experimental data reasonably well in the studied energy range, 0.5
  • Authors

    Digital Object Identifier (doi)

    Author List

  • Saneesh N; Arora D; Chatterjee A; Golda KS; Kumar M; Vinodkumar AM; Sugathan P
  • Volume

  • 1013