Cooper Nuclear Station From: [email protected] [mailto:[email protected]] On Behalf Of Thomson, Raymond W. Sent: Tuesday, November 16, 2010 12:34 PM To: [email protected] Subject: Powernet: Challenging A Workers Ability To Hear Dosimeter Alarms
Columbia Generating Station is requesting the following information: 1) Does your facility challenge a workers ability to hear Direct Reading Dosimeter alarms? Yes 2) How and when is this testing conducted? When an individual is being issued a TLD/DLR 3) Do you challenge a workers ability to hear Direct Reading Dosimeter alarms in a high noise background area when using an enhanced alarming dosimeter such as a PAM 1 or PAM-TRX? High background noise area, yes, using a regular dosimeter. Cooper uses three dosimeters mounted on a board and placed on their chest. The individual does not know which of the three or if all three are set to alarm and must acknowledge an alarm or lack of alarm correctly. 4) Do you test outage workers during Radiation Worker initial training? No, same issuance of TLD/DLR as everyone. 5) What measures do take if a worker fails the hearing challenge test? Individual is required to use IPAM dosimeter for every entry into the RCA, the Sentinel system has a flag to ensure the worker sees a screen that asks "Do you have your high noise adapter?" and they must select the "Yes" button to continue logon. Thanks In Advance, Ray Thomson Health Physics Staff Advisor Columbia Generating Station [email protected] Office, 509-377-8273 Pager, 509-780-0339
