Determination of radioiodine activity in charcoal cassettes.
Sampling of radioiodine in air is accomplished by passing an air sample through an activated charcoal cassette. A mathematical model was developed, which assumes that radioiodine distribution along the cassette axis can be expressed by an exponential function. The model was validated experimentally for cassettes used for air sampling of radioiodine production boxes. There is a good agreement between the measurements and model predictions. Furthermore, when breakthrough occurs, the model can be used to estimate the activity that passed through the cassette unabsorbed.
Kravchik
T
T
Nuclear Research Centre Negev, P.O.B. 9001, Beer-Sheva 84190, Israel. tuvkra@inter.net.il
Levinson
S
S
Oved
S
S
Tsroya
S
S
Pelled
O
O
Haim
M
M
German
U
U