SINENA - A Monte Carlo Program for Transfering Proton-Recoil Telescope Neutron Fluence Measurements to Detectors

摘要

A Monte Carlo program has been developed which allows the efficiency of proton recoil telescopes (PRT) in realistic neutron fields to be computed. The commonly used direct and indirect methods for calibrating detectors against a PRT have been discussed and generalized for realistic neutron fields which are produced using spatially-extended targets and an anisotropic production reaction. The gas target using the D(d,n) exp 3 He reaction has been studied as an example of a realistic source. The influence of the entrance foil and the reaction gas have been considered. The correction due to first-order elastic multiple scattering from target material has been implemented. It could be shown that systematic errors of up to 5.5% can be avoided by the use of the new program as compared to the present standard procedures. (ERA citation 08:052069)