Re: Rule of Thumb for BETA contamination

["Albert W. Wolff Jr." <wolff.albert@mcleod.net>]

At DAEC the thumbrule we use is for a smear reading 4 mrem/hr/100cm2
beta with an RO2/2A/20 the activity in dpm would be 100,000 dpm/100cm2.
This was determined using typical nuclide mixes that we see in our plant
and reading them with a frisker and an RO2/2A/20. It is strictly a
thumbrule to put you in the ballpark.

>Bedenbaugh, Mark wrote:
> 
> The rule of thumb conversion for removable contamination has been 1 mrem
> gamma = 1 million dpm
> assuming Co-60 as the major isotope does anyone have a rule of thumb for
> 1 mrem BETA ?
> 
> I'll welcome any input
> 
> Thanks,
> 
> M.B.
> Mark Bedenbaugh
> RNP- Ext. 1287
> Beeper - 673-6040
> mark.bedenbaugh@cplc.com

-- 
Albert W. Wolff Jr 
Health Physics
IES Utilities
Duane Arnold Energy Center

wolff.albert@mcleod.net
awolff@ies-energy.com
319-851-7837