A simple method for the air monitoring of xenon-133

A simple and inexpensive method to monitor the air for Xe-133 is described. The procedure requires only standard 10-cc evaculated tubes, a scintillation well counter, and a dose calibrator--standard equipment in most nuclear medicine laboratories. Air contamination in the range of the maximum permissible concentration in restricted areas (10pCi/cc) can be detected easily by this technique.