NEUTRON FIELDS INSIDE CONTAINMENT OF A CANDU(R)600-PHWR POWER-PLANT

Neutron fields in six locations inside containment of a CANDU(R)600-PH WR power plant were characterized using Bonner-sphere spectrometry, Un folded fluence spectra were used to predict and understand the behavio r of a rem meter (a moderator-type dose equivalent survey instrument), The suitability of employing commonly-used sources such as Am-241-Be for calibrating the rem meter was investigated by calculational means, Results of these calculations suggest that employing a calibration fi eld more representative of the power-plant fields would likely provide more accurate dose equivalents.