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Relationship of /sup 220/Rn and /sup 222/Rn progeny levels in Canadian underground U mines

Journal Article · · Health Phys.; (United States)
Radon-222 and /sup 220/Rn progeny are found in some Canadian underground U mines. Because both can contribute to lung dose, their experimental determinations are important. The relationship between /sup 222/Rn progeny Working Level (WL(Rn)) and /sup 220/Rn progeny Working Level (WL(Tn)) has been investigated in U mines. Experimental measurements extended from 1981 to 1986 and consisted of about 700 measurements of each WL(Rn) and WL(Tn). The data were analyzed by standard linear and power-function regression analysis. A power-function relationship between WL(Rn) and WL(Tn) seemed to fit the experimental data best. The relationship obtained permits the calculation of WL(Tn) from experimental values of WL(Rn). The relationship is useful for lung-dose-calculation purposes and in mine-ventilation-engineering calculations.
Research Organization:
Canada Centre for Mineral and Energy Technology, Ontario
OSTI ID:
6545714
Journal Information:
Health Phys.; (United States), Journal Name: Health Phys.; (United States) Vol. 55:3; ISSN HLTPA
Country of Publication:
United States
Language:
English