Browns Ferry uses Option2 - gamma monitor followed by beta/alpha monitor.  RCA 
exit boundary is after the beta/alpha monitor

We have another gamma monitor were we exit the protected area as well


Chuck Creamer
Charles E. Creamer
Health Physicist
Tennessee Valley Authority
Browns Ferry Nuclear Plant
P.O. Box 2000 (Mail Stop NAB-1G-BFN)
Decatur, Al. 35609-2000
Phone: 256-729-2983
Fax:  256-729-3101
Pager: 1-800-323-4853, pin 30-053
mailto:[email protected]


This electronic message transmission contains information which may be TVA 
SENSITIVE, TVA RESTRICTED or TVA CONFIDENTIAL. Any misuse or unauthorized 
disclosure can result in both civil and criminal penalties. If you are not the 
intended recipient, be aware that any disclosure, copying, distribution or use 
of the content of this information is prohibited. If you have received this 
communication in error, please notify me immediately by email and delete the 
original message.




From: [email protected] [mailto:[email protected]] On Behalf Of 
[email protected]
Sent: Thursday, March 06, 2014 11:36 AM
To: [email protected]
Subject: Powernet: Placement of exit RCA monitors

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
email: [email protected]<mailto:[email protected]> 
----------------------------------------- The information contained in this 
message is intended only for the personal and confidential use of the 
recipient(s) named above. If the reader of this message is not the intended 
recipient or an agent responsible for delivering it to the intended recipient, 
you are hereby notified that you have received this document in error and that 
any review, dissemination, distribution, or copying of this message is strictly 
prohibited. If you have received this communication in error, please notify us 
immediately, and delete the original message.

Reply via email to