We used an RCS smear to perform the Argos sensitivity study - included Cr-51, Mn-54, Co-57/58/60, Zn-65, Zr-95, Nb-95, Sn-113 and Sb-125 (predominantly Co-58/60). We found this alarmed every time using a 25000 dpm smear. This was lower than the sensitivity of the GEM-5 but about the same as the PM-7.
Elizabeth Heyeck Senior Health Physicist D.C. Cook Nuclear Plant 269-466-2545 [email protected] From: Kinmark, Michael L. [mailto:[email protected]] Sent: Tuesday, August 22, 2017 2:03 PM To: [email protected] Subject: [EXTERNAL] [powernet] Internal Sensitivity Study on Beta WB Contamination Monitors This is an EXTERNAL email. STOP. THINK before you CLICK links or OPEN attachments. If suspicious please forward to [email protected]<mailto:[email protected]> for review. ________________________________ Question on Internal Sensitivity (Passive Internal Monitoring) Study - I know most all have done an internal sensitivity study on your Gamma Portal Monitors (GEM-5, PM-7, iPM-12). Has anybody had a ANI - Recommendation to do the same study on your Argos-5 A/B, PCM, IPM Whole Body Contamination Monitors (gas flow beta type only - not plastic scintillator optioned like Zeus)? The guidance quoted is ANI Section 8.5, Revision 5 Bioassy - Specifically 8.5.9 Criterion. If so, what did you find sensitivity to be? Sincerely, Michael Kinmark HP Staff Advisor III Radiological Support Columbia Generating Station 509-377-2091 [email protected]<mailto:[email protected]>
