This work summarizes all significant data concerning health physics activities connected with mining operations. A complete evaluation of the total dose (external plus internal) received by the workers is presented as well as the forumula adopted as a radioprotection standard. External doses have been evaluated on the basis of individual TLD dosimeters, while evaluation of internal doses are mainly achieved by an environmental surveillance program of radon daughter air concentration inside the mines. The external dose received by the workers is lower than 0. 2 m Sv/month and internal exposure is less than 6. 4 10** minus **3 J. h. m** minus **3 /year (or, using the old units, 2 WLM/year). An environmental control program has been also carried out in a wide area surrounding the galleries in order to evidence eventual radiometric alteration due to mining activities.
PHYSICAL AND ENVIRONMENTAL SURVEILLANCE IN URANIUM EXPLORATION GALLERIES
FENZI, Alberto;
1985-01-01
Abstract
This work summarizes all significant data concerning health physics activities connected with mining operations. A complete evaluation of the total dose (external plus internal) received by the workers is presented as well as the forumula adopted as a radioprotection standard. External doses have been evaluated on the basis of individual TLD dosimeters, while evaluation of internal doses are mainly achieved by an environmental surveillance program of radon daughter air concentration inside the mines. The external dose received by the workers is lower than 0. 2 m Sv/month and internal exposure is less than 6. 4 10** minus **3 J. h. m** minus **3 /year (or, using the old units, 2 WLM/year). An environmental control program has been also carried out in a wide area surrounding the galleries in order to evidence eventual radiometric alteration due to mining activities.
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