ML110620532
| ML110620532 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 01/21/2011 |
| From: | Office of Nuclear Reactor Regulation |
| To: | Division of License Renewal |
| References | |
| Download: ML110620532 (4) | |
Text
1 DiabloCanyonNPEm Resource From:
Poehler, Jeffrey Sent:
Friday, January 21, 2011 7:58 AM To:
Kemper, William
Subject:
RE: Information request - Diablo Canyon - Neutron noise
- Bill, Thanks for getting back to me-Jeff Poehler From: Kemper, William Sent: Thursday, January 20, 2011 5:22 PM To: Poehler, Jeffrey
Subject:
RE: Information request - Diablo Canyon - Neutron noise
- Jeff, Sorry for the delay in respondingstill catching up from the month of AL I took in December. No, EICB is not involved with this type of equipment. This equipment is not tech. spec equipment, or safety related and is more orientated to the Core Analysis business area. I doubt if Rx. Systems would be involved with this equipment either. Sorry I couldnt help more.
- Thanks, Bill Kemper, EICB/DE/NRR 301-415-0927 301-873-6274 (BB)
From: Poehler, Jeffrey Sent: Monday, December 20, 2010 8:17 AM To: Kemper, William
Subject:
FW: Information request - Diablo Canyon - Neutron noise
- Bill, Would your branch be involved in reviewing neutron noise monitoring? See forwarded message from Alan Wang in DORL. I dont think CVIB has ever been involved with this. The two branches I thought of were I&C Branch and Reactor Systems in NRR/DSS.
- Thanks, JeffreyC.Poehler Sr.MaterialsEngineer NRR/DCI/CVIB (301)4158353
2 From: Wang, Alan Sent: Friday, December 17, 2010 3:53 PM To: Poehler, Jeffrey
Subject:
FW: Information request - Diablo Canyon - Neutron noise
Jeff, I got the Matt is away message. Could you help me with this. Thanks alan From: Wang, Alan Sent: Friday, December 17, 2010 3:51 PM To: Mitchell, Matthew
Subject:
FW: Information request - Diablo Canyon - Neutron noise
Matt, Mike Cullingford had this request from someone from the Spanish NRC?. They saw the Diablo article and was wondering if it might have implications for them. I am not sure what issue with the Trillo plant is but when I read the link it appears to me that the neutron noise was instrumentation we placed inside the reactor to look for vibration and loose parts. Do you know if we have any information regarding this type of instrumentation to determine vibration or loose parts? It is not clear to me what neutron noise they are detecting unless they too are using a similar technology for loose parts. If you have any insights on this I would appreciate it. Alan From: Cullingford, Michael Sent: Friday, December 17, 2010 9:49 AM To: Wang, Alan
Subject:
FW: Information request - Diablo Canyon - Neutron noise
Hi Alan: Could you please guide me as to who is the appropriate person (if not yourself) for me to get the answer to this question? Thank you, mike From: FRANCO MATILLA, Fernando [1]
Sent: Friday, December 17, 2010 4:48 AM To: Fehst, Geraldine
Subject:
Information request - Diablo Canyon - Neutron noise
DearGerri,
OnbehalfofoneCSNCommissioner,weareinterestedinobtainingsometechnicalinformationfromtheNRC.Asyou mayknow,wehavebeenexperiencingabnormalneutronnoiseinTrilloNPP.Theanalysiscarriedoutbythelicensee andtheCSNisunderprogress,withthecooperationofourGermancolleagues(TrilloisGermandesign),whoare carryingoutsimilaranalysis.Inrelationtothis,thefollowingnewshasdrawnourattention:
http://www.neimagazine.com/story.asp?storyCode=2056532
WewouldbeinterestedinobtainingsomeinformationabouttheroleoftheUSNRCincaseithasbeeninvolvedinthe assessmentofthisissue.Sofar,oursearchattheUSNRCwebsitehasbeenunsuccessful.Woulditbepossibletoget additionalinformationregardingtheevaluationofthissituationbytheNRC?Thankyouverymuchforyourcooperation,
FernandoFranco
3
Hearing Identifier:
DiabloCanyon_LicenseRenewal_NonPublic Email Number:
2646 Mail Envelope Properties (19D990B45D535548840D1118C451C74D7B645E1375)
Subject:
RE: Information request - Diablo Canyon - Neutron noise Sent Date:
1/21/2011 7:57:41 AM Received Date:
1/21/2011 7:57:00 AM From:
Poehler, Jeffrey Created By:
Jeffrey.Poehler@nrc.gov Recipients:
"Kemper, William" <William.Kemper@nrc.gov>
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