Abstract
Monte Carlo (MC) calculations of the response function of NE213 organic liquid scintillators have been compared with measurements at 2.4 and 13.9 MeV neutron energy, with the purpose of tuning the calculation parameters of detection efficiency vs threshold in the neutron energy range from 1 to 14 MeV. A successful reproduction of the experimental response function has been achieved only enhancing the light yield of recoil protons with respect to the values accepted until now. The experimental depletion of the neutron response function at 13.9 MeV caused by neutron-γ-ray pulse shape discrimination, instead, was not reproduced by MC calculations even after reasonable changes of the related input cross sections.
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