A technique for measurement of xenon-133 air contamination.

A sensitive, inexpensive technique is described for measuring xenon-133 air contamination to levels below nonoccupational exposure limits. The method uses a column containing a measured amount of activated charcoal through which an air sample is passed. The relative effects of air flow rate, xenon concentration, air temperature, relative humidity, and characoal weight on the amount of trapped xenon are described.