Do you consider that a true statement if the cause of the gamma alarm is from internal contamination of an individual? What if no external contamination can be located, WBC confirm internal, does that remain RM outside a RCA that is uncontrolled?
What waste stream (contamination) isotopes are you basing your configuration 1 settings on that have only a gamma component and not a beta component (or decay product) that would alarm the beta/alpha monitors? What isotopes are present in the waste stream that do not alarm the lower set beta/alpha monitor settings that are present to alarm a gamma monitor? Contaminations stream basis and thus monitor setpoints account for difficult to detect (DTD) isotopes or hard to detect isotopes by lowering setpoints to MDA’s that include scaled in DTD contamination stream products. Please provide me with you thoughts on the chosen configurations with regard to you waste stream. I am referencing PWR data and do not have so much experience with BWR waste streams. Thanks for your responses. From: [email protected] [mailto:[email protected]] On Behalf Of Kallenbach, David J. (INPO) Sent: Tuesday, March 11, 2014 1:31 PM To: [email protected] Subject: Powernet: RE: Questionnaire Results - Placement of monitors at RCA exit - tail on question The risk of using configuration 3 is that if you have a verified alarm with the gamma monitor (or alpha/beta monitor as in configuration 4), you have radioactive material outside the RCA. From: [email protected] [mailto:[email protected]] On Behalf Of Kinmark, Michael L. Sent: Tuesday, March 11, 2014 1:22 PM To: [email protected] Subject: Powernet: RE:Questionnaire Results - Placement of monitors at RCA exit - tail on question Just a quick question for those that responded as Configuration 1: Is anyone considering a change from 1 (or other) to Configuration 3? From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Tuesday, March 11, 2014 6:19 AM To: [email protected] Subject: Powernet: Powernet Questionnaire Results - Placement of monitors at RCA exit Thank you to all that responded to the powernet questionnaire on placement of the beta/alpha and gamma sensitive monitors at the RCA exit. Shown below is the result of the questionnaire. Responses: 21 (13) Configuration 1 – beta/alpha, gamma, RCA exit (3) Configuration 2 – gamma, beta/alpha, RCA exit (3) Configuration 3 – beta/alpha, RCA exit, gamma (0) Configuration 4 – gamma, RCA exit, beta/alpha (2) Configuration 5 – Other, Argos 5 with Zeus Original Questionnaire: 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. - Argos 5 with Zeus Sun G. Lee, CHP Perry Nuclear Power Plant Radiation Protection 440-280-5039 work 440-465-8030 cell email: [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. _____ .DISCLAIMER: This e-mail and any of its attachments may contain proprietary INPO or WANO information that is privileged, confidential, or protected by copyright belonging to INPO or WANO. This e-mail is intended solely for the use of the individual or entity for which it is intended. If you are not the intended recipient of this e-mail, any dissemination, distribution, copying, or action taken in relation to the contents of and attachments to this e-mail is contrary to the rights of INPO or WANO and is prohibited. If you are not the intended recipient of this e-mail, please notify the sender immediately by return e-mail and permanently delete the original and any copy or printout of this e-mail and any attachments. Thank you.
