Robinson response below From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Thursday, October 27, 2011 7:34 PM To: [email protected] Cc: [email protected] Subject: Powernet: Monitoring and Controlling Individuals with Radioactive Implants
Palo Verde request information on how other stations handle individuals undergoing radioactive seed implant therapy treatments. 1. From a work standpoint, do you place any restrictions on individuals with radioactive seed implants, do you remove an individual's TLD (dose of record device) while the seeds are implanted or through their period of effectiveness? We have had a couple of these. We took TLD and did not allow individuals access to RCA (protected area does not require TLD) 1. If the individual has measurable external dose rates do you monitor them for potential impact on other station personnel? Yes. 1. Do you restrict their work area locations or proximity to other personnel? Yes. 1. Do you allow these individuals to enter the RCA and or the Radiological Restricted Area while the seeds are implanted? No RCA, yes Restricted Area (same as Protected Area at Robinson) 1. Do you make any other exceptions or accommodations during their period of treatment? Individuals are given a card showing that they alarm the Protected Area portal monitors and that this is acceptable. 1. If an individual has a hard to detect radionuclide such as Cs-131, do you monitor or control their activities? Haven't encountered this situation * For these isotopes, do you calculate a restriction or monitoring period based on effective half-life? ********************************************************************** Seth J. Kanter, CHP, RPT Sr. Health Physicist Palo Verde Nuclear Generating Station Mail Sta. 7397 5801 S. Wintersburg Rd. Tonopah, AZ 85354 Phone (623) 393-3130 Fax (623) 393-1853 Unless otherwise noted, all opinions are my own Liviu Librescu ********************************************************************** --- NOTICE --- This message is for the designated recipient only and may contain confidential, privileged or proprietary information. If you have received it in error, please notify the sender immediately and delete the original and any copy or printout. Unintended recipients are prohibited from making any other use of this e-mail. Although we have taken reasonable precautions to ensure no viruses are present in this e-mail, we accept no liability for any loss or damage arising from the use of this e-mail or attachments, or for any delay or errors or omissions in the contents which result from e-mail transmission.
