North Anna- 1.) Primarily SRD's however we will back that up with stay times and a REM ball in case we get an anomaly with the SRD which has happened.
2.) No specific criteria other than what's stated above. 3.) No 4.) Yes we have an AmBe source and we track exposure when using that source. 5.) It depends. The Equipment hatch area is surveyed Monthly. The ISFSI interior is surveyed when we add a canister and then the perimeter is surveyed quarterly. From: Powernet [mailto:powernet-boun...@hpspowernet.org] On Behalf Of Beth Heyeck via Powernet Sent: Monday, April 16, 2018 3:35 PM To: powernet@HPSpowernet.org Cc: Beth Heyeck Subject: [External] [Powernet] Neutron dose tracking We are looking at streamlining our neutron dose tracking and are wondering how other plants are performing it. 1. Which do you use for determining neutron dose for workers in Neutron Exposure Areas: a. Stay time tracking b. Gamma to neutron ratios c. Neutron sensitive SRDs d. Other 2. Do you have specific criteria for using any of the above? 3. Are there any exemptions to tracking neutron doses in Neutron Exposure Areas, and how are those documented? 4. Do you track neutron dose outside of Neutron Exposure Areas/when handling neutron sources? 5. How often do you perform neutron surveys of Neutron Exposure Areas? Elizabeth Heyeck, CHP Senior Health Physicist D.C. Cook Nuclear Plant 269-466-2545 eahey...@aep.com<mailto:eahey...@aep.com> 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.
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