Answers for grand Gulf Nuclear Station:
1. Semi annually. 2. OSL for our area program. Chemistry’s Environmental dosimeters are still TLD, I believe, LiF 3. The number has decreased and will likely go down again due to lower plant staff than when the program was designed. For example, we have 9 around our switch yard. That is way more than needed to give a good mapping of dose in the area. Fred Rosser Sr. HP Specialist Grand Gulf Nuclear Station 601 437-6571 From: Powernet [mailto:powernet-boun...@hpspowernet.org] On Behalf Of LaFrate, Patrick Joseph via Powernet Sent: Monday, March 25, 2019 11:47 AM To: powernet@hpspowernet.org Cc: LaFrate, Patrick Joseph Subject: [Powernet] Quick Hit Benchmark – Area TLD/OSL Monitoring EXTERNAL SENDER. DO NOT click links, or open attachments, if sender is unknown, or the message seems suspicious in any way. DO NOT provide your user ID or password. Questions from Duke Energy on Area TLD/OSL Monitoring: 1. At what frequency do you perform Area TLD/OSL monitor changeouts at your facility? (e.g., quarterly) 1. What type of device do you use for area monitoring? Please be specific (e.g., LiF (Cu, Mg), OSL, etc.) 1. Has the number of your area monitoring locations increased or decreased? Duke Energy answers: 1. quarterly; 2. TLD - LiF, (Mg, Ti); 3. increased. Thanks in advance. Any input greatly appreciated! I will share results with anyone interested. Sincerely, 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) This message is intended for the exclusive use of the intended addressee. If you have received this message in error or are not the intended addressee or his or her authorized agent, please notify me immediately by e-mail, discard any paper copies and delete all electronic files of this message.
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