RE: Personnel Contamination Monitoring

["Beard, Travis N" <travis.n.beard@nspco.com>]

At Prairie Island, we use a National Nuclear Corp. (NNC) Gamma-60 portal and
NNC Friskalls.  Both checks are required upon exit from the RCA.  The
Gamma-60 portal is set at about 150 nCi and the Friskalls (3) at about 4
nCi.  We have another Gamma-60 at the guardhouse exit which is set at about
190 nCi.  For suspected radon daughter contamination we look at half life,
beta/gamma to alpha ratio (using portable instrument) or gamma spec.  Let me
know if you need more information.
Travis N. Beard, Corp. H.P. 

> -----Original Message-----
> From:	IRA M. TURNER [SMTP:TURNEIM@GWSMTP.NU.COM]
> Sent:	Tuesday, December 28, 1999 11:06 AM
> To:	Multiple recipients of list
> Subject:	Personnel Contamination Monitoring
> 
> Millstone is currently examining existing practices regarding monitoring
> of
> personnel at the exit from the RCA.  This look at current practices is to
> evaluate use of various instruments including the PCM, CM-11, friskers,
> etc,...
> Included is an evaluation of methods for alpha and radon monitoring.
> 
> I would appreciate it if other program owners could forward copies of
> procedures for this type of monitoring.  
> Unfortunately, I need these for perspective in order to settle a "debate,"
> and
> therefore, the sooner the better.
> I thank you in advance for your assistance.
> 
> Ira M. Turner
> Supervisor Health Physics Support
> Millstone Nuclear Power Station
> 
> 860-447-1791 x 4433
> turneim@nu.com
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