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     Radsafe Group
     
     10CFR72.106, "Controlled area of an ISFSI or MRS," has as one of the 
     criteria: "The lens dose equivalent shall not exceed 0.15 Sv...."
     
     Is there a method that the NRC has accepted for calculating the dose 
     to the eye from a cloud of mixed beta and gamma emmitters?
     
     I checked the RADSAFE records and found some good information, but 
     would like to find out if the NRC has determined that a particular set 
     of assumptions and methodologies is more acceptable than others.  
     
     Thanx in advance for the help.
     
     This request has not been reviewed, approved, or even looked at by 
     management.
     
     John Rich
     Sargent & Lundy Engineers
     john.rich@slchicago.infonet.com
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