Davis-Besse uses and reports to 0.1 mrem. The ALARA benefit sought was that a worker could look at the dosimeter and see the incremental increase in dose and possibly move to a lower dose rate area. Before, a worker would not know until the dosimeter reached 1 mrem. There is no evidence that this thought process occurs, but that was the intent.
From: [email protected] To: [email protected] Date: 12/20/2011 01:54 PM Subject: Powernet: Tracking electronic dosimeter dose to tenths? Sent by: [email protected] San Onofre currently tracks electronic dosimeter dose to integer mrem (a deliberate decision when we implemented the MGPI DMC-2000S dosimeters). We understand that some plants track dose to tenths of an mrem. Reportedly, there is an ALARA benefit for this additional precision. I have two questions: How many plants/fleets are tracking ED dose to tenths of a mrem? How does such precision impact ALARA performance? In other words, what worker behaviors change when a worker sees 4.4 mrem instead of 4, or 4.7 mrem instead of 5? Thanks and Happy Holidays from sunny (today) California, Eric Eric M. Goldin, CHP Southern California Edison <[email protected]> ----------------------------------- Powernet - a service of the Health Physics Society Power Reactor Section Powernet archives at http://www.mail-archive.com/[email protected]/ Reply to: [email protected] If Questions, contact Mike Russell, CHP at [email protected] ----------------------------------------- The information contained in this message is intended only for the personal and confidential use of the recipient(s) named above. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately, and delete the original message.
