Air Monitoring For Tritium

[barberj@m4lp.com (Jerry Barber)]

     Hello Radsafers
     
     I am hoping that someone out there has experience with tritium air 
     monitoring using a particular type of flow through ionization chamber. 
     Specifically, a model 347 or 357 OVERHOFF.
     
     I am interested in how these instruments perform (indoors) in an 
     industrial type situation (heat, humidity, varying radon 
     concentrations, varying external radiation fields.. etc..)
     
     I assume that these detectors do not provide any information on the 
     molecular form of the tritium (and hence we will assume it is all 
     oxide).  Is this likely to cause us much of a problem for either area 
     monitoring or stack monitoring?  
     
     I would also like to speak with someone who has compared using flow 
     through ionization chambers to other tritium air monitoring methods 
     (gels and bubblers) for both indoor air monitoring and stack 
     monitoring.
     
     Please respond to me personally with vendor specific information.  
     Otherwise, if you feel that your information would be valuable to the 
     list, please post.
     
     Thanks
     
     
     Jerry Barber
     M4 Environmental
     423 220-7673
     barberj@m4lp.com