Gaseous Iodine

Gaseous iodine is sampled using a radioiodine sampler with a silver impregnated zeolite cartridge, which absorbs iodine efficiently. Air is drawn through the cartridge by means of a pumping system. The amount of air passing through the cartridge is calculated using the flow-rate and the period of time the sampler has been activated. Measurements of the radioactivity of these samples are carried out at the Radiation Laboratory at King's Park.