Re: Personal Dosimetry for Environmental Operations

[sandy_perle@email.fpl.com]

     Another interesting consideration when measuring a dose at your 
     desired level. What are you going to use to determine the natural 
     background from which you will subtract a value from the environmental 
     dosimeters that are in the area that you are concerned with? Also be 
     aware that any measurement derived between the 0.1 and 1 mrem level 
     will have a poor confidence level. This valid requirement does pose 
     some interesting considerations. 
     
     I would suggest that the first thing you would want to do is to obtain 
     some very reliable micro-R/hr readings to determine where you're at. 
     Then I would suggest that you place whatever dosimeters you decide 
     upon in an area where you get a decent measurement. Then you can take 
     that information to determine a more accurate dose rate and then 
     identify whether or not the measurement is within or exceeds your 
     specification limits.
     
     More information on what you are trying to accomplish would be 
     helpful..
     
     Sandy Perle
     Supervisor Health Physics
     Florida Power and Light Company
     Nuclear Division
     
     (407) 694-4219 Office
     (407) 694-3706 Fax
     
     sandy_perle@email.fpl.com
     
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