Answers for Beaver Valley Power Station - 1) What type of DLR (TLD, OSL, Film) do you use? TLD
2) Does your site take DLRs home? Yes 3) If no, how/where do you store them on site? n/a 4) If yes, do you use control dosimetry from on-site, off-site, or both to subtract background radiation? Control TLDs are kept at the dosimetry lab located near the site. This was found to have a representative background appropriate for the control location. 5) How do you do DLR exchange and how long does it take you? We send out site wide email announcements starting about 2 weeks before the changeout. It usually takes about a week to collect the stragglers. 6) Any other pros/cons of taking DLRs home vs staying on site? Higher background variability which will increase the LLD a bit. Harder to retrieve TLDs taken home by contractors. TLDs are more subject to loss or damage (someone's dog will eat their TLD). Increased likelihood for non-occupational exposure (airport & medical X-rays, nuclear medicine administration). John Lebda Staff RP Specialist Beaver Valley Power Station 724-682-7775 From: Benjy P Bertossi <[email protected]> To: [email protected] Cc: James P Stewart <[email protected]> Date: 07/16/2013 06:53 AM Subject: Powernet: DLR / TLD practices Sent by: [email protected] Fermi 2 will be installing hand geometry this year and will allow security keycards to go home. We currently store our DLRs on security key cards and would appreciate your input on the below questions: 1) What type of DLR (TLD, OSL, Film) do you use? 2) Does your site take DLRs home? 3) If no, how/where do you store them on site? 4) If yes, do you use control dosimetry from on-site, off-site, or both to subtract background radiation? 5) How do you do DLR exchange and how long does it take you? 6) Any other pros/cons of taking DLRs home vs staying on site? Please respond to Powernet or Jim Stewart directly, [email protected] (734.586.1388) Thanks, Benjy Benjy Bertossi Fermi2 - RP Supervisor 734-586-4935 [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.
