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Technical Discussions
William Blum
Consultant, Training, Level III Services
NDT Consulting Group Inc., USA, Joined Nov 2000, 89

William Blum

Consultant, Training, Level III Services
NDT Consulting Group Inc.,
USA,
Joined Nov 2000
89
07:10 Nov-13-2004
Specific Gamma Constant Intensity

One reference (Gamma Radiation Safety Study Guide, Second Edition, Joe Bush) gives the above for IR192 as 5.2 R/hour at one foot. Another (Gamma Radiography, AEA Technology) states 5.9 R/hour at one foot. Can anyone give a good reference that might tell me which is correct or at least explain the discrepancy?

Thanks,




    
 
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Buddy
Buddy
01:45 Nov-14-2004
Re: Specific Gamma Constant Intensity
----------- Start Original Message -----------
: One reference (Gamma Radiation Safety Study Guide, Second Edition, Joe Bush) gives the above for IR192 as 5.2 R/hour at one foot. Another (Gamma Radiography, AEA Technology) states 5.9 R/hour at one foot. Can anyone give a good reference that might tell me which is correct or at least explain the discrepancy?
: Thanks,
------------ End Original Message ------------
Hello Bill!

The correct exposure rate is 5.9R/Hr/Ci @ 1'. This is the rate I've always used. Kodak gives the rate as .55R/Hr/Ci @ 1 meter. Do the math and it works out. Folow this link:

http://www.kodak.com/cluster/global/en/service/pubs/kpro/radiography/W37_02.shtml




    
 
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