The following was received from
Minnesota via email:
On June 20, 2016 at 0930 [CDT] Midwest Industrial X-Ray, Inc. (License number 1086-89) had a source disconnect event. Their Radiation Safety Officer notified the Minnesota Department of Health [MDH] of the event at 0925 [CDT] on June 21, 2016.
Initial details:
- The event happened on a jobsite in Lakeville, MN.
- The Camera was a QSA 880 Delta.
- Source was 47.5 curies of I-192.
- The cause has been initially determined to be a worn drive cable. The licensee stated that the drive cable passed the go-no-go test prior to hooking up.
- They were able to retrieve the source and get it back in the shielded position.
- All equipment was inspected after the retrieval.
- The faulty drive cables were brought back to the licensee's corporate office in Fargo, ND for repair.
- Pocket dosimeter readings following the retrieval were: 41 mrem, 20 mrem, 11 mrem, and 10 mrem.
The licensee is in the process of preparing a written report that will be submitted within 30 days as required.
MDH will continue to investigate this event.
MDH Inspectors will be on-site at the licensee's office in Albertville MN on June 23, 2016 to perform a follow-up inspection.