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Abstract

The exposures of 17 miners to radon daughters were estimated for a trial period of one month with active and passive personal dosimeters. The results were compared with estimates from area monitoring by active measurements of radon daughters and passive measurements of radon gas. An average equilibrium factor of 0.47 was derived from spot measurements and a value of 0.58 averaged over the duration of the trial was derived from personal dosimeter measurements. For a representative value of 0.5 the mean estimate from the passive dosimeter differed by 2 % from the active dosimeter estimate and 2/3 of passive dosimeter results were within 30 % of the active dosimeter results. The estimates from area monitoring are about 40 % higher pointing to the value of personal dosimetry.

Additional information

Authors: DIXON D W, NATIONAL RADIOLOGICAL PROTECTION BOARD, CHILTON, OXFORDSHIRE (UK);MILES J C H, NATIONAL RADIOLOGICAL PROTECTION BOARD, CHILTON, OXFORDSHIRE (UK);WRIXON A D NATIONAL RADIOLOGICAL PROTECTION BOARD, CHILTON, OXFORDSHIRE (UK), NATIONAL RADIOLOGICAL PROTECTION BOARD, CHILTON, OXFORDSHIRE (UK)
Bibliographic Reference: INTERNATIONAL CONFERENCE ON OCCUPATIONAL RADIATION SAFETY IN MINING, TORONTO (CANADA), OCT. 14-18, 1984 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 31817 ORA
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