NCRP Report No. 122, Use of Personal Monitors to Estimate Effective Dose Equivalent and Effective Dose to Workers for External Exposure to Low-LET Radiation
NCRP Report No. 122 takes cognizance of the fact that in many external exposure circumstances, dose equivalent estimates obtained from personal monitors significantly overestimate effective dose equivalent (HE ) or effective dose (E), particularly when the body is not uniformly irradiated due to the irradiation conditions or due to protective shielding of portions of the body. Specifically, in these cases, the numerical relationships between monitoring data and HE or E need to be better understood so that appropriate monitoring practices are selected and monitoring data are properly evaluated. This Report explores these numerical relationships for external exposure from low-LET radiation and gives recommendations for estimating HE or E in practice, using personal monitors.