Activated charcoal adsorber bed as a ²²²Rn hold up system for application in uranium mining industries

²²²Rn, produced due to the decay of ²²⁶Ra, can accumulate to high concentrations, and if adequate ventilation is not provided the workers may inhale the ²²²Rn laden air, which would result in elevated inhalation dose in Uranium mining and milling operations. Similarly, in thorium mining and processing plants, the ²²⁰Rn generated during monazite processing and thorium handling facility is of concern. In a previous publication it has been shown that adsorption in a flow-through charcoal bed offers an excellent method of alleviating the release of ²²⁰Rn into occupational and public domain. In this paper we examine the utility of TMS as a ²²²Rn hold up/delay system by evaluating its performance parameters such as breakthrough time (τ) and adsorption coefficient (K) at different flow rates