Davis Besse = #3.

Douglas L. Noble
Manager - Radiation Protection
Davis-Besse Nuclear Power Station
(419) 321-7780 office
(419) 304-0068  cell




From:   "Trimble, Harold" <[email protected]>
To:     "[email protected]" <[email protected]>
Date:   03/06/2014 10:52 PM
Subject:        RE: Powernet: Placement of exit RCA monitors
Sent by:        [email protected]



HC change.  Hope Creek actually configures per #1.  We go through 
beta/gamma monitor then we go through a Gamma monitor once cleared you 
step out of the RCA. 
 
Perry Nuclear Power would like to know how other plants arrange their exit 
beta/alpha sensitive (e.g. PCM or equivalent) and gamma sensitive (i.e. 
SPM or equivalent) monitors at the RCA exit. 

Which configuration describes your plant 

1 - beta/alpha monitor followed by gamma monitor.  RCA exit boundary is 
after the gamma monitor 

2 - gamma monitor followed by beta/alpha monitor.  RCA exit boundary is 
after the beta/alpha monitor 

3 - beta/alpha monitor, RCA exit boundary, then gamma monitor 

4 - gamma monitor, RCA exit boundary, then beta/alpha monitor 

5 - Other configuration.  Explain. 


Thank you in advance for your reply. 


Sun G. Lee, CHP
Perry Nuclear Power Plant
Radiation Protection
440-280-5039 work
440-465-8030 cell
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