[ RadSafe ] Determining Radon

[cobdw at tds.net]

Our soil remediation project just acquired a PCM-2.  This is a whole body gas proportional frisker set up to detect alpha and beta contamination.  Since we are a soil remediation project, we are subject to radon gas. Per our procedures, we are required to report all personal skin and clothing contaminations with the exception of contamination due to radon gas.  I was wondering if anyone out there has had experience with this type of instrument in detecting radon gas and what methodology is used in the field to determine if the alarms are due to radon or real contamination?  Please keep in mind that we do not have a count room available with the gamma spec. capabilities.  We are limited to field instruments only.  

Thank you in advance for all replies to this inquiry.

Douglas Coble