>From Callaway First, Callaway does not provide instruments to the local hospital. Our State Emergency Management Agency provides those for the hospital use.
For In Plant lockers, the quarterly response checks are done with the normal source(s) used in plant. We place response check sources in the locker to do the checks (Ion Chambers use a nominal 2 millicurie strontium wheel source, friskers and low range GM Hot Dog instruments use a Cs-137 button source approximately 90 microcuires. Each scale is based upon distance. High range instruments (telepoles) use a shielded source jig that has an approximate 20 millicurie Cs-137 source in it. We had the necessary sources built for each emergency locker location. Each scale is tested, and scales not tested are labeled on the instrument. For example the low range GM Hot Dog probe instrument has an internal detector for the high range. These are not typically response checked). For the "prior use" response checks of the Field Monitoring instruments, we have a special procedure to perform a one point response check on one scale. It is to a Cs-137 button source that is kept with the Field Monitoring Vehicle in a case labeled UN2910 to allow it to be taken on the public road when the Field Monitoring team is deployed. Questions or comments, contact Dewey Thompson 314-225-1061 or email From: [email protected] [mailto:[email protected]] On Behalf Of SANDRA SEWELL Sent: Monday, November 17, 2014 6:26 PM To: [email protected] Cc: Mike A Jones Subject: Powernet: Operational Checks of Emergency Instruments SONGS requests information regarding how you perform the quarterly operational and prior to use checks of emergency radiological survey instruments, particularly the instruments provided to hospitals on your emergency plan. 1. Do you have a sticker affixed to the instrument indicating the range of reading that the meter should indicate when response checked? 2. What do you use to response check emergency instruments? Thanks, Sandy The information contained in this message may be privileged and/or confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. Note that any views or opinions presented in this message are solely those of the author and do not necessarily represent those of Ameren. All e-mails are subject to monitoring and archival. Finally, the recipient should check this message and any attachments for the presence of viruses. Ameren accepts no liability for any damage caused by any virus transmitted by this e-mail. If you have received this in error, please notify the sender immediately by replying to the message and deleting the material from any computer. Ameren Corporation
