Calibration of the Brazillian Albedo Dosemeter at a CV-28 Cyclotron

Abstract

This work deals with the analysis and application of neutron measurement techniques in order to gain information on the neutron spectrum and neutron dose equivalent at several representative work places of the cyclotron facility of the Instituto de Engenharia Nuclear at Rio de Janeiro, Brazil. The foil activation technique was used for the neutron spectra measurement and the neutron dose equivalent was measured with the single sphere albedo technique, using BF3 and 3He proportional detectors and a 6LiI scintillation detector. The results from these different techniques were compared to determine the most appropriate method to calibrate the Brazilian albedo dosemeter for use in the particular radiation environment of particle accelerators.