Simulated workplace neutron fields of $$^{241}$$ 241 Am –Be source moderated by polyethylene spheres

AbstractSimulated workplace neutron fields of a\(^{241}\)Am –Be source moderated by polyethylene spheres have been developed. The characterization in terms of neutron fluence rate and neutron ambient dose equivalent rate,\(H^*(10)\), was performed using Bonner sphere spectrometer and the MAXED and FRUIT unfolding codes. The neutron fluence rates and the\(H^*(10)\) rates obtained from the two codes are in good agreement with the discrepancies of 8% and 6%, respectively. The neutron ambient dose equivalent-averaged energies and the neutron fluence-to-dose equivalent conversion coefficients were also evaluated in comparison between the two codes. The discrepancies are<  10% and 12%, respectively.
Source: Journal of Radioanalytical and Nuclear Chemistry - Category: Nuclear Medicine Source Type: research