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The problem of radon in uranium mines; Le probleme du radon dans les mines d'uranium

Abstract

The exploitation of uranium ores constitute the first stage in the use of the atomic energy. With the current methods of exploitation, we meet in these mines various dangers of irradiation and contamination which the presence of the radon constitutes one of the most important aspects. The supportable maximum concentration is currently of 10{sup -10} c of radon by liter of air. It seems, even while considering that the RaA, RaB and RaC descendants are not in balance, that it cannot be fix a less rigorous limit. Indeed the limit proposed by the ''Commission Internationale de Protection Radiologique'' give, for an exhibition of 40 hours per week a dose calculated to the level of the bronchi of: 9,5 rem/week with 100% of RaA and 50% of RaB and RaCs, or 19 rem/week with 100% of RaA, RaB and RaC instead of 0,3 rem. It is necessary, also, to take into account because of the risk is not unique for the miner who is expose to the radiation of ore and breath dusts of uranium. (authors) [French] L'exploitation des minerais d'uranium constitue le premier stade dans l'utilisation de l'energie atomique. Avec les methodes courantes d'exploitation on rencontre dans ces mines des  More>>
Authors:
Jammet, H; Pradel, J [1] 
  1. Commissariat a l'Energie Atomique, Saclay (France). Centre d'Etudes Nucleaires
Publication Date:
Jul 01, 1955
Product Type:
Technical Report
Report Number:
CEA-R-396
Resource Relation:
Conference: Geneva Conference: communication of the CEA, Communication du C.E.A. a la conference de Geneve, Geneve (Switzerland), Aug 1955; Other Information: 4 ref
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; CONTAMINATION; IRRADIATION; MAXIMUM PERMISSIBLE CONCENTRATION; MINERS; RADIATION PROTECTION; RADIOACTIVE AEROSOLS; RADON; UNDERGROUND MINING; URANIUM MINES; URANIUM ORES; VENTILATION SYSTEMS
OSTI ID:
20846034
Research Organizations:
CEA Saclay, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR06R0396018195
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
10 pages
Announcement Date:
Apr 02, 2007

Citation Formats

Jammet, H, and Pradel, J. The problem of radon in uranium mines; Le probleme du radon dans les mines d'uranium. France: N. p., 1955. Web.
Jammet, H, & Pradel, J. The problem of radon in uranium mines; Le probleme du radon dans les mines d'uranium. France.
Jammet, H, and Pradel, J. 1955. "The problem of radon in uranium mines; Le probleme du radon dans les mines d'uranium." France.
@misc{etde_20846034,
title = {The problem of radon in uranium mines; Le probleme du radon dans les mines d'uranium}
author = {Jammet, H, and Pradel, J}
abstractNote = {The exploitation of uranium ores constitute the first stage in the use of the atomic energy. With the current methods of exploitation, we meet in these mines various dangers of irradiation and contamination which the presence of the radon constitutes one of the most important aspects. The supportable maximum concentration is currently of 10{sup -10} c of radon by liter of air. It seems, even while considering that the RaA, RaB and RaC descendants are not in balance, that it cannot be fix a less rigorous limit. Indeed the limit proposed by the ''Commission Internationale de Protection Radiologique'' give, for an exhibition of 40 hours per week a dose calculated to the level of the bronchi of: 9,5 rem/week with 100% of RaA and 50% of RaB and RaCs, or 19 rem/week with 100% of RaA, RaB and RaC instead of 0,3 rem. It is necessary, also, to take into account because of the risk is not unique for the miner who is expose to the radiation of ore and breath dusts of uranium. (authors) [French] L'exploitation des minerais d'uranium constitue le premier stade dans l'utilisation de l'energie atomique. Avec les methodes courantes d'exploitation on rencontre dans ces mines des dangers divers d'irradiation et de contamination dont la presence du radon constitue l'un des aspects les plus importants. La concentration maximum tolerable est actuellement de 10{sup -10} c de radon par litre d'air. Il semble, meme en considerant que les descendants RaA, RaB et RaC ne sont pas en equilibre, qu'on ne puisse pas fixer une limite moins rigoureuse. En effet la limite proposee par la Commission Internationale de Protection radiologique donne, pour une exposition de 40 heures par semaine une dose calculee au niveau des bronches de: 9,5 rem/semaine avec 100 % de RaA et 50 % de RaB et RaC, ou 19 rem/semaine avec 100 % de RaA, RaB et RaC au lieu de 0,3 rem. Il faut, en outre, tenir compte du fait que le risque n'est pas unique chez le mineur qui est expose au rayonnement du minerai et respire des poussieres d'uranium. (auteurs)}
place = {France}
year = {1955}
month = {Jul}
}