Personal fast neutrons dosimetry using radiophotoluminescent glass

In a previous paper we described a new ambient RPL dosimeter that detects fast neutrons in a mixed n-γ field via (n,p) reactions in a polyethylene converter. In the present study, a personal dosimeter is introduced to enable evaluating the individual dose equivalent H_p(10) taking into account the albedo. A calibration factor for estimating H_p(10) has been determined from the diminishing angular response as the angle of neutron incidence increases to 60 deg from the normal. MCNPX simulations for ²⁴¹Am-Be and ²⁵²Cf neutrons, together with a series of monoenergetic neutron beams from 0.144 to 5 MeV, have been used to characterize the dosimeter response, which agrees well with the experimental ²⁴¹Am-Be response.