Duke has also been using the DMC3000 with neutron module for over a year now (power entries and Dry Fuel Storage). RSCS does the neutron calibration for us. We still use our population of DMC2000GNs, too. We do not apply any correction factor for the GNs after calibration and get pretty decent comparisons especially in containment. For DFS, very good except for one plant where we see an TLD/GN ratio of about 1.1. At our other plants for DFS we see an average ratio of around 0.8-0.9 (TLD/GN). It is pretty much the same for both the DMC2000GNs and DMC3000 w/ n module.
Patrick J. LaFrate, CHP Manager – Radiation Dosimetry & Records Duke Energy Dosimetry Laboratory 13339 Hagers Ferry Road Applied Science Center; Bldg 7405 MC: MG03A2 Huntersville, NC 28078 980-875-3204 919-802-5716 (cell) From: Powernet [mailto:[email protected]] On Behalf Of BJ Thompson via Powernet Sent: Monday, March 18, 2019 12:47 PM To: [email protected] Cc: BJ Thompson <[email protected]> Subject: Re: [Powernet] Quick Bench Marking on Neutron Dosimeter *** Exercise caution. This is an EXTERNAL email. DO NOT open attachments or click links from unknown senders or unexpected email. *** Naureen, North Anna still uses the DMC-2000 GNs for neutron exposure. We have not switched over to the DMC 3000 Neutron Modules. We would be interested in any results you can share with the new DMC-3000 neutron dosimeters. Barbara J. Thompson North Anna Power Station 1022 Haley Drive Mineral, Va 23117 Superintendent Health Physics Technical Services [email protected]<mailto:[email protected]> Phone: 540-894-2638 From: Macho, Michael [mailto:[email protected]] Sent: March 18, 2019 10:33 AM To: [email protected]<mailto:[email protected]> Cc: Rahman, Naureen Subject: EXT - RE: Quick Bench Marking on Neutron Dosimeter *** Attention: External Message / Message externe *** Naureen, So we have just started using them for power entries this quarter. RSCS does the neutron calibration for us. We used the REM500 to establish a correction factor which RSCS applies after they perform the calibration. We still use our population of DMC2000GNs, also. Even though we make numerious power entries, most neutron exposure is during Dry Cask Storage. It will be later this year before we have any DLR neutron dose to do any comparison. Michael Macho [bikeMS16_Email_Signature] Radiaiton Protection Comanche Peak Nuclear Power Plant 6322 North FM 56, Mail Code 005A Glen Rose, TX 76043 254-897-5698 (Office) 817-559-1997 (Cell) [Vistra-TXUE-Lum-lockup-all-03] From: Powernet [mailto:[email protected]] On Behalf Of Rahman, Naureen via Powernet Sent: Thursday, March 14, 2019 1:30 PM To: [email protected]<mailto:[email protected]> Cc: Rahman, Naureen <[email protected]<mailto:[email protected]>> Subject: [Powernet] Quick Bench Marking on Neutron Dosimeter EXTERNAL EMAIL Hi All, I have just received a few of the DMC 3000 Neutron Modules. I am planning to test them in the neutron prone area of the plant. Prior to do that I want to do a quick bench marking on the usage of it. Is there anyone using these DMC 3000 Neutron Modules for the neutron dosimetry? How did you find it compared to using a REM ball based Neutron Meter? Or what do you use in your facility to do the neutron dose measurement? Your input you will be greatly appreciated. Naureen M. Rahman Health Physicist Point Lepreau Nuclear Generating Station Phone: (506) 659-7850 Cell: (506) 343-5480 Email: [email protected]<mailto:[email protected]> . ________________________________ This e-mail communication (including any or all attachments) is intended only for the use of the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the intended recipient of this e-mail, any use, review, retransmission, distribution, dissemination, copying, printing, or other use of, or taking of any action in reliance upon this e-mail, is strictly prohibited. If you have received this e-mail in error, please contact the sender and delete the original and any copy of this e-mail and any printout thereof, immediately. Your co-operation is appreciated. Le présent courriel (y compris toute pièce jointe) s'adresse uniquement à son destinataire, qu'il soit une personne ou un organisme, et pourrait comporter des renseignements privilégiés ou confidentiels. Si vous n'êtes pas le destinataire du courriel, il est interdit d'utiliser, de revoir, de retransmettre, de distribuer, de disséminer, de copier ou d'imprimer ce courriel, d'agir en vous y fiant ou de vous en servir de toute autre façon. Si vous avez reçu le présent courriel par erreur, prière de communiquer avec l'expéditeur et d'éliminer l'original du courriel, ainsi que toute copie électronique ou imprimée de celui-ci, immédiatement. Nous sommes reconnaissants de votre collaboration. Confidentiality Notice: This email message, including any attachments, contains or may contain confidential information intended only for the addressee. If you are not an intended recipient of this message, be advised that any reading, dissemination, forwarding, printing, copying or other use of this message or its attachments is strictly prohibited. If you have received this message in error, please notify the sender immediately by reply message and delete this email message and any attachments from your system. CONFIDENTIALITY NOTICE: This electronic message contains information which may be legally confidential and or privileged and does not in any case represent a firm ENERGY COMMODITY bid or offer relating thereto which binds the sender without an additional express written confirmation to that effect. The information is intended solely for the individual or entity named above and access by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution, or use of the contents of this information is prohibited and may be unlawful. If you have received this electronic transmission in error, please reply immediately to the sender that you have received the message in error, and delete it. Thank you.
_______________________________________________ Powernet mailing list [email protected] http://hpspowernet.org/mailman/listinfo/powernet_hpspowernet.org
