Thanks Eric “No detectable” is a subject I am struggling with. Here at LANL we are doing away with determining “Minimum Detectable Activity” and substituting something else which depends greatly on interpretation. I would be more comfortable with “No detectable” if a confidence level were attached to the survey reading.
I do plan on staying in this field as long as I can be productive, perhaps another 10 or 15 years. Tom From: emgoldin [mailto:[email protected]] Sent: Monday, April 17, 2017 1:31 PM To: Voss, Tom <[email protected]>; David W Miller <[email protected]>; [email protected] Subject: Re: [powernet] RE: RE:New HPS Instrumentation Section Meeting Date Tom, the NRC has no regulations with release criteria. Unconditional release requires a determination of "no detectable". I believe some materials licensees have license conditions with specified minimum detection limits such as the old 1k smearable, 5k total. For Part 50 licensees (commercial reactors), see Info Circular 81-07 for surface contamination guidance and Info Notice 85-92 for quantities. Volumetric releases require gamma spec to environmental levels with LLDs specified in the ODCM. If ANSI/HPS N13.12 were ever adopted . . . . Regards, Eric Goldin, CHP Sent from my Verizon, Samsung Galaxy smartphone -------- Original message -------- From: "Voss, Tom" <[email protected]<mailto:[email protected]>> Date: 4/17/17 10:54 AM (GMT-08:00) To: David W Miller <[email protected]<mailto:[email protected]>>, [email protected]<mailto:[email protected]> Subject: [powernet] RE: RE:New HPS Instrumentation Section Meeting Date Everyone I got the dates mixed up, David is correct it should be on the 10th. But I still can’t find that meeting on the HPS Online Listing. I have contacted the right people to get the meeting listed. Show up at the HPS meeting on July 10th and I guarantee there will be a discussion about the new “Instrumentation Section” of the HPS. Perhaps in a hallway which is where I get my best information here at Los Alamos National Laboratory. Thanks to David for catching my error. Tom From: David W Miller [mailto:[email protected]] Sent: Monday, April 17, 2017 11:41 AM To: Voss, Tom <[email protected]<mailto:[email protected]>>; [email protected]<mailto:[email protected]> Subject: RE:New HPS Instrumentation Section Meeting Date Tom, I think you mean Monday, July 10 for the new HPS Instrumentation Section meeting at the Raleigh HPS Annual Meeting. I hope there is a good response to the instrumentation Section initiative. Thanks for organizing the Power Reactor Section Meeting on Wednesday. David Miller Cook RP American Electric Power 217 855 3238 ________________________________ From: Voss, Tom [[email protected]] Sent: Monday, April 17, 2017 1:35 PM To: [email protected]<mailto:[email protected]> Subject: [EXTERNAL] [powernet] NRC surface contamination release limits This is an EXTERNAL email. STOP. THINK before you CLICK links or OPEN attachments. ________________________________ Everyone In the DOE we use surface contamination guidelines in 10CFR835 Appendix D, much earlier than 10CFR835 we used Table 1 of DOE Order 5400.5. Our Radiation Protection Program document pretty much incorporates the values in 10CFR835 Appendix D. Each DOE facility is required to have a Radiation Protection Program document but there are differences from one DOE facility to another. Is there a comparable NRC document stating surface contamination guidelines ? What is the impact of “HRA Consultation No. 26-MF-755-00D” ? Is that a useable NRC facility guide ? What do the Canadian members of Powernet use for surface contamination guidelines ? The Power Reactor Section of the HPS will meet on Wednesday July 12 from 08:30 to 10:30 AM at the annual HPS meeting in Raleigh. I would like to discuss this topic and many more at that meeting. I am also trying to arrange a short Monday night (July 11) meeting of those who are interesting in participating in the new “Instrumentation Section” of the HPS. Best regards Tom James (Tom) Voss
