Open session: Occupational radiation exposure from medical and industrial uses in Norway

摘要

In this paper, the dose statistics and dose distribution for H_(p)[10] and H_(p)[0.07] covering the years 2000 to 2007 from the national dosimetry service offered by the Norwegian Radiation Protection Authority (NRPA) are presented. Annual doses for different worker categories are presented together with the distribution of annual average doses in different dose intervals. Annual average doses for all monitored workers and for workers which received doses have also been determined. The highest individual doses have been identified in medical uses of radiation, particularly in the medical professions radiologists and cardiologists. There has also been an increase in the annual doses for these groups over the past few years. In industrial uses of radiation no specific group of workers have been exposed to individual annual doses higher than previously registered. In this area of use, there has been no increase in the annual average doses. The results show that the annual average doses for workers for which doses above 0.1 mSv has been reported has increased the last three to four years. This is mainly due to the contribution from the medical uses of radiation. The annual collective dose has decreased the last years, and is now approximately 2.5 manSv.