1. Do you use neutron electron dosimetry? We have, but not always. 2. If yes, what model / manufacturer? DMC2000GN Mirion Electronic Alarming Dosimeters (EADs) 3. Where / when is it used? We recently used them for our dry cask campaigns. In order to do so, we had to expose the EADs to our neutrons during the first campaign and "field" calibrate them using a known response (we used calibrated REM500 portable instruments). Then we could use the EADs for subsequent campaigns (we've completed four total - so we used the EADs for three). However, it will be difficult to maintain the calibration going forward. 4. How does it compare to DLR (i.e. TLD, OSL) reads? Our TLDs were also calibrated the same way (at the same time) based on those REM500 readings - so N/A 5. Are you able to eliminate [neutron] paper tracking methods with the electronic dosimeter? We were during the time period and conditions that the EADs were calibrated to. Not going forward or for other neutron sources, as the neutron energies with dry cask are different from neutron energies at power operations. 6. Do you have a correction factor? If yes, what is it? N/A 7. Would you be willing to share technical information on determining your correction factor? Yes. Please contact me individually, if interested.
Dr. Lara Renz Paciello, CHP Radiation Protection - Dosimetry Laboratory Beaver Valley Power Station 724-682-5857 From: Parlatore, Linda M:(GenCo-Nuc) [mailto:linda.parlat...@exeloncorp.com] Sent: Monday, February 27, 2017 11:01 AM To: powernet@hpspowernet.org Cc: Ridge, Rose Marie A:(GenCo-Nuc) <rosemarie.ri...@exeloncorp.com> Subject: *EXTERNAL* [powernet] Benchmark Response Request Question #2 of 2 TMI is performing a benchmark on external dosimetry. Question #2 (of 2)concerns neutron electronic dosimetry. Responses are appreciated. If you would prefer to call instead, I can be reached at 717-948-8075. 1. Do you use neutron electron dosimetry? 2. If yes, what model / manufacturer? 3. Where / when is it used? 4. How does it compare to DLR (i.e. TLD, OSL) reads? 5. Are you able to eliminate [neutron] paper tracking methods with the electronic dosimeter? 6. Do you have a correction factor? If yes, what is it? 7. Would you be willing to share technical information on determining your correction factor? Linda M Parlatore CHP NRRPT Three Mile Island 2625 River Road Middletown, PA 17057 717.948.8075 717.948.8502 (fax) This Email message and any attachment may contain information that is proprietary, legally privileged, confidential and/or subject to copyright belonging to Exelon Corporation or its affiliates ("Exelon"). This Email is intended solely for the use of the person(s) to which it is addressed. If you are not an intended recipient, or the employee or agent responsible for delivery of this Email to the intended recipient(s), you are hereby notified that any dissemination, distribution or copying of this Email is strictly prohibited. If you have received this message in error, please immediately notify the sender and permanently delete this Email and any copies. Exelon policies expressly prohibit employees from making defamatory or offensive statements and infringing any copyright or any other legal right by Email communication. Exelon will not accept any liability in respect of such communications. -EXCIP ----------------------------------------- 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.
