Hi All Does anyone use the "Alpha Subtract" function of the AMS-4 to get an alpha cpm rate ?
The detectors are sealed gas proportional and there is a separate beta and alpha channel in the AMS-4s. It is not straight forward to access the alpha channel and the count rate is only kept inside the AMS-4 memory for a few hours. But the alpha cpm value might have some use in assessing the potential for airborne alpha contamination NOT DUE TO RADON/THORON. A simple ratio of alpha cpm to beta cpm might be of use also. Here at LANL we did NOT use that alpha cpm information and only extracted it from operating AMS-4s a few times. Tom From: Creamer, Charles E [mailto:[email protected]] Sent: Tuesday, August 22, 2017 10:37 AM To: 'Bradley A Krupp' <[email protected]>; [email protected] Cc: Brian G Gonia <[email protected]> Subject: [powernet] RE: AMS-4 remote monitoring Brad, Browns Ferry uses GEDDS as well as the AMS-4. You can contact me for more information. Chuck Creamer Health Physicist Radiation Protection Tennessee Valley Authority; Browns Ferry Nuclear Plant P.O. Box 2000 (Mail Stop NAB-1G-BFN) Decatur, Al. 35609-2000 256.729.2983 (w) [email protected]<mailto:[email protected]> [https://lakeinfo.tva.gov/web/images/tva_logo_32b.png]<https://tva.com/> [https://lakeinfo.tva.gov/web/images/blue_line.png] [https://lakeinfo.tva.gov/web/images/facebook2.png]<https://www.facebook.com/TVA/>[https://lakeinfo.tva.gov/web/images/twitter2.png]<https://twitter.com/tvanews>[https://lakeinfo.tva.gov/web/images/instagram2.png]<https://instagram.com/tva>[https://lakeinfo.tva.gov/web/images/youtube2.png]<https://www.youtube.com/user/TVANewsVideo>[https://lakeinfo.tva.gov/web/images/linkedin2.png]<https://www.linkedin.com/company/tva>[https://lakeinfo.tva.gov/web/images/flickr2.png]<https://www.flickr.com/photos/tennesseevalleyauthority/> NOTICE: This electronic message transmission contains information that may be TVA SENSITIVE, TVA RESTRICTED, or TVA CONFIDENTIAL. Any misuse or unauthorized disclosure can result in both civil and criminal penalties. If you are not the intended recipient, be aware that any disclosure, copying, distribution, or use of the content of this information is prohibited. If you have received this communication in error, please notify me immediately by email and delete the original message. From: Bradley A Krupp [mailto:[email protected]] Sent: Tuesday, August 22, 2017 8:56 AM To: [email protected]<mailto:[email protected]> Cc: Brian G Gonia Subject: [powernet] AMS-4 remote monitoring TVA External Message. Please use caution when opening. Fermi is in the process of upgrading our remote monitoring software to GEDDS. Would like feedback and contact information from peers who have integrated remote monitoring of their Eberline AMS-4's. Thanks in advance for your assistance. Brad Krupp
