Abstract
The Atomic Energy Control Board contracted SENES Consultants Limited to design and implement a field program at Amok Limited`s Cluff Lake uranium mine, with the overall objective of obtaining reliable radon flux data applicable for use in the VENTRAD computer model. The VENTRAD model was developed to model underground mine ventilation systems. To avoid the uncertainties inherent in localized flux measurements made on small surfaces, radon flux measurements were determined through measurement of incremental changes in the concentration of radon between the incoming and outgoing air in selected areas of the underground workings. The locations were selected throughout the mine in both ore and sterile rock. Average radon flux rates measured during three field campaigns were as follows: sterile rock decline 4 pCi/m{sup 2}.second; sterile rock mainway 25 pCi/m{sup 2}.second; worked-out stope 100 pCi/m{sup 2}.second; active work stope 240 pCi/m{sup 2}.second; and work face 14,000 pCi/m{sup 2}.second. Data collected during the three field programs were used to validate the VENTRAD computer model. The results of the validation exercise suggest close agreement between predicted and measured air flow rates and radon concentrations were overestimated for areas immediately impacted by auxiliary ventilation fans and ore transfer mill holes which connect the ore
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Citation Formats
None.
Determination of radon flux rates in a uranium mine (Cluff Lake, Saskatchewan).
Canada: N. p.,
1989.
Web.
None.
Determination of radon flux rates in a uranium mine (Cluff Lake, Saskatchewan).
Canada.
None.
1989.
"Determination of radon flux rates in a uranium mine (Cluff Lake, Saskatchewan)."
Canada.
@misc{etde_10128106,
title = {Determination of radon flux rates in a uranium mine (Cluff Lake, Saskatchewan)}
author = {None}
abstractNote = {The Atomic Energy Control Board contracted SENES Consultants Limited to design and implement a field program at Amok Limited`s Cluff Lake uranium mine, with the overall objective of obtaining reliable radon flux data applicable for use in the VENTRAD computer model. The VENTRAD model was developed to model underground mine ventilation systems. To avoid the uncertainties inherent in localized flux measurements made on small surfaces, radon flux measurements were determined through measurement of incremental changes in the concentration of radon between the incoming and outgoing air in selected areas of the underground workings. The locations were selected throughout the mine in both ore and sterile rock. Average radon flux rates measured during three field campaigns were as follows: sterile rock decline 4 pCi/m{sup 2}.second; sterile rock mainway 25 pCi/m{sup 2}.second; worked-out stope 100 pCi/m{sup 2}.second; active work stope 240 pCi/m{sup 2}.second; and work face 14,000 pCi/m{sup 2}.second. Data collected during the three field programs were used to validate the VENTRAD computer model. The results of the validation exercise suggest close agreement between predicted and measured air flow rates and radon concentrations were overestimated for areas immediately impacted by auxiliary ventilation fans and ore transfer mill holes which connect the ore extraction and haulage levels of the mine.}
place = {Canada}
year = {1989}
month = {Dec}
}
title = {Determination of radon flux rates in a uranium mine (Cluff Lake, Saskatchewan)}
author = {None}
abstractNote = {The Atomic Energy Control Board contracted SENES Consultants Limited to design and implement a field program at Amok Limited`s Cluff Lake uranium mine, with the overall objective of obtaining reliable radon flux data applicable for use in the VENTRAD computer model. The VENTRAD model was developed to model underground mine ventilation systems. To avoid the uncertainties inherent in localized flux measurements made on small surfaces, radon flux measurements were determined through measurement of incremental changes in the concentration of radon between the incoming and outgoing air in selected areas of the underground workings. The locations were selected throughout the mine in both ore and sterile rock. Average radon flux rates measured during three field campaigns were as follows: sterile rock decline 4 pCi/m{sup 2}.second; sterile rock mainway 25 pCi/m{sup 2}.second; worked-out stope 100 pCi/m{sup 2}.second; active work stope 240 pCi/m{sup 2}.second; and work face 14,000 pCi/m{sup 2}.second. Data collected during the three field programs were used to validate the VENTRAD computer model. The results of the validation exercise suggest close agreement between predicted and measured air flow rates and radon concentrations were overestimated for areas immediately impacted by auxiliary ventilation fans and ore transfer mill holes which connect the ore extraction and haulage levels of the mine.}
place = {Canada}
year = {1989}
month = {Dec}
}