Iodine monitor with two scintillators for distinguishing components - according to ease of adsorption on different filters, used esp. for measuring radioactive iodine content of air

摘要

An iodine monitor for continuous individual measurement of iodine components in the atmos. operates by a scintillators which detect the quantum radiation produced as the iodine decays. These scintillators are mounted parallel to the air flow through a duct and the space between the scintillators and the inner wall of the duct is completely filled by filters. Two separate scintillators are mounted in two separate ducts; the ducts possess a common inlet and common outlet and are mounted in a common housing. The filter associated with one scintillator adsorbs alliodine components, while the other filter, associated with the other scintillator adsorbs elementary and/or easily adsorbed iodine. Used in particular for monitoring air discharged from a nuclear power plant, in order to measure its radioactive iodine content and the possible effects of various levels of components of this iodine.