RE: Release Criteria

[glen.vickers@EXELONCORP.COM]

Several papers have been written in this area by utilities and these

positions are known by INPO and the NRC.



You essentially can't reduce your alarm setpoints to account for Fe-55.  The

Fe-55/Co-60 scaling factor at our site is approx 2.5.  There is no way you

could lower your alarm setpoints or hand frisking levels by 2.5 and operate

the plant.  The previously taken positions have shown that the Fe-55 levels

at 5 kdpm for a tool monitor or 5 kdpm/100 cm^2 for a frisker smear is not a

significant dose consequence if it were released.  This being the case, no

additional measures are required.





Glen Vickers

Braidwood Nuclear Station





> -----Original Message-----

> From:	Hall, Donald C. Jr [SMTP:dchall@TVA.GOV]

> Sent:	Tuesday, September 11, 2001 12:42 PM

> To:	radsafe@list.vanderbilt.edu

> Subject:	Release Criteria

> 

> We would like information on how other nuclear plant radiological

> protection

> programs address "hard-to-detect" isotopes such as Fe-55 with regard to

> release of personnel and materials from Radiologically Controlled Areas

> (RCAs).

> 

> D.C. Hall, Jr.

> Health Physicist

> Watts Bar Nuclear Plant

> dchall@tva.gov

> 

>   

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