Semantic search
Jump to navigation
Jump to search
| Start date | Reporting criterion | Title | Event description | System | LER | |
|---|---|---|---|---|---|---|
| ENS 43691 | 24 September 2004 07:00:00 | Agreement State | Agreement State Report - Leaking Sealed Source | Keymaster's Radiation Safety Officer reported they had recently (in September 2004) received a batch of eleven Cobalt 57, foil sources, Model PHI-0106, from Isotope Products Laboratory. One of the eleven sources failed its receipt leak test. The others were tested and were not leaking. The State of Washington provided the following information via e-mail: The contaminated foil source had Serial Number B9-774 and had an activity of 437 megabecquerels (11.8 millicuries). When wiped, the level of contamination was about 500 counts per minute above background. The source may have been leaking or could have had residual contamination; this was never determined. The source was returned to the supplier. The work areas and personnel were surveyed and found uncontaminated. No media attention at present. Subsequent inspections by DOH performed 10/31/2005 and 9/21/2006 found no contamination and no additional reoccurrences of receiving contaminated sources. Notification Reporting Criteria: WAC 246-221-250 Isotope and Activity involved: Cobalt 57, 437 mBq (11.8 mCi). There were no overexposures. The leaking source was an Isotope Products Laboratories XRF source Model PHI-0106, S/N B7-461. The leaking source was wiped down to 416 counts, placed back into its shield. It was returned to supplier. There was minor contamination in the source storage area. The licensee has since cleaned the area. Wipe surveys performed by the licensee and DOH showed no contamination. State of Washington Event Report # WA-04-042. |