Bruce Power uses Overhoff tritium monitors. We have both the portable variety and the area monitors (Overhoff 357s). These are our main tritium instrument. Generally we have no issues with these instruments and find them to be more accurate than the Scintrex when we compare to passive samplers that are analyzed via LSC. You should note that you cannot use them in a dose rate of more than 5 mrem/hr and get an accurate reading. However, the grab sample feature is used for this purpose (draws a sample and you shut the pump off, move to a low dose area and read out). The only general complaint about them is that they can take a little while to purge, especially if they have been in a highly tritated environment. This is on the order of minutes though. We have also found ways of using our overhoff 357s in higher dose rate areas by using shielding and dessicant.
Hope this helps. If you would like very technical information I can put you in touch with some of our instrument folks. Carrie Porter RP ALARA Section Manager | Bruce A Radiation Protection & Industrial Safety Department | 519-361-2673 x16647 | pager: 519-373-5948 | [email protected] ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of BREHM, DAVID M Sent: Thursday, January 10, 2013 3:17 PM To: [email protected] Subject: Powernet: RE: Portable Realtime Tritium Monitors Never used on from these guys: http://www.overhoff.com/ ...but the specifications are good. Used to be a company (Sintrex/Sartrex) that made a portable tritium monitor. Not sure it there are many other vendors than Overhoff for portable monitors. You might try to contact someone at the Savannah River DOE site or Chalk River (AECL) in Canada. They have lots of tritium and no doubt can provide you much information on the topic. David Brehm Radiological Engineer Office: 402.533.7582 Radiation Protection - Nuclear Operations Cellular: 402.214.0107 Omaha Public Power District - Fort Calhoun Nuclear Station Pager: 402.561.3310 9610 Power Lane, Blair, NE 68008 [email protected] From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Thursday, January 10, 2013 10:11 AM To: [email protected] Subject: Powernet: Portable Realtime Tritium Monitors Hi All! We recently got some funding for some new Tritium monitors. We currently use Tritium bubblers, but were looking for something with real-time data. Does anyone currently utilize another type of tritium monitor that they would recommend? Thank you! Amanda L. Stenson Exelon Corp - Braidwood NPS RP Technical Specialist (815)417-2712 [cid:531135521@11012013-126E] ************************************************** This e-mail and any of its attachments may contain Exelon Corporation proprietary information, which is privileged, confidential, or subject to copyright belonging to the Exelon Corporation family of Companies. This e-mail is intended solely for the use of the individual or entity to which it is addressed. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution, copying, or action taken in relation to the contents of and attachments to this e-mail is strictly prohibited and may be unlawful. If you have received this e-mail in error, please notify the sender immediately and permanently delete the original and any copy of this e-mail and any printout. Thank You. ************************************************** ________________________________ This e-mail contains Omaha Public Power District's confidential and proprietary information and is for use only by the intended recipient. Unless explicitly stated otherwise, this e-mail is not a contract offer, amendment, or acceptance. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.
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