Measurement of new operational quantities with radiation protection instruments designed for working area monitoring and for individual monitoring

The ICRP recommended a dose limitation system based on numerical evaluation of the dose equivalent to organs or tissues, HT, which are used to calculate the effective dose, HE, by weighting. The ICRU proposed new operational quantities accessible to measurement which are conservative with respect to these recommendations. The objective of this paper is to recall briefly the basic recommendations and to find out if radiation protection instruments presently used calibrated in terms of the previous quantities are capable to measure these new quantities. A dozen of practical cases are presented. (author)