Estimation of Thoron Inhalation Dose Using a Sensitive Whole-Body Counter

Exposure to thoron daughters is a potential inhalation hazard in thorium handling facilities. The internal exposure of individual workers is estimated using air-sampling data and occupancy factor. In order to corroborate the results of this indirect method, a study was carried out by planned exposur...

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Bibliographic Details
Published in:Radiation protection dosimetry 1992-01, Vol.42 (4), p.307-312
Main Authors: Haridasan, T.K., Gohel, C.O., Surendran, T., Sharma, R.C., Iyer, M.R.
Format: Article
Language:English
Subjects:
Applied radiobiology (equipment, dosimetry...)
Biological and medical sciences
Biological effects of radiation
Fundamental and applied biological sciences. Psychology
thoron
Tissues, organs and organisms biophysics
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Summary:Exposure to thoron daughters is a potential inhalation hazard in thorium handling facilities. The internal exposure of individual workers is estimated using air-sampling data and occupancy factor. In order to corroborate the results of this indirect method, a study was carried out by planned exposure of human volunteers to thoron daughters and in vivo activity measurements using a sensitive whole-body counter. The methodology and findings of such a procedure are presented in this paper. The effective dose equivalents estimated from the air sampling data and whole-body counting show agreement within ±20%.
ISSN:0144-8420
1742-3406
1742-3406
DOI:10.1093/oxfordjournals.rpd.a081316