Ionization chamber

A chamber for detecting the ionization of an enclosed gas. The is used for determining the intensity of ionization radiation.


A small cavity filled with air which has the capability of collecting the ionic charge which is liberated during irradiation. A measure of this charge combined with knowledge of the mass of air in the chamber is a means of determining exposure and dose.


A device used to measure radiation by equating ion production in a gas chamber with the intensity of an electrical charge.


In a gaseous enclosure, there exists a confined space housing a pair of electrodes with contrasting charges. When this enclosure encounters radiation, the gas within undergoes ionization, leading to the attraction of individual ions towards the electrode possessing an opposing polarity. As a consequence of this process, an electrical current flows through the enclosure, its magnitude directly correlated to the strength of the incident radiation.


 


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