ENS 55108: Difference between revisions
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On 2/13/21, the licensee was attempting to replace a source rod on a customer's nuclear gauge. After removing the source rod tip, licensee surveys of the area detected contamination. Wipes of the rod and work area were counted using a Ludlum 3030, S/N 222793, calibrated 10/12/20, and indicated low levels of beta contamination (approximately 25 nCi total) apparently due to a leaking source. It is not believed the cutting of the source rod breached the Cs-137 source. The contamination was confined to a small portion of a countertop, a vise, a hack saw blade and the floor directly below the work area. The contaminated area was wiped with damp rags and contaminated items and rags were collected into plastic bags and then placed into a 5-gallon bucket. The source and the piece of the source rod cut off were placed into a large lead container. The area was subsequently surveyed again, and no radioactivity was detected. No contamination was detected on clothes or shoes. | On 2/13/21, the licensee was attempting to replace a source rod on a customer's nuclear gauge. After removing the source rod tip, licensee surveys of the area detected contamination. Wipes of the rod and work area were counted using a Ludlum 3030, S/N 222793, calibrated 10/12/20, and indicated low levels of beta contamination (approximately 25 nCi total) apparently due to a leaking source. It is not believed the cutting of the source rod breached the Cs-137 source. The contamination was confined to a small portion of a countertop, a vise, a hack saw blade and the floor directly below the work area. The contaminated area was wiped with damp rags and contaminated items and rags were collected into plastic bags and then placed into a 5-gallon bucket. The source and the piece of the source rod cut off were placed into a large lead container. The area was subsequently surveyed again, and no radioactivity was detected. No contamination was detected on clothes or shoes. | ||
California Report ID: 5010-021621 | California Report ID: 5010-021621 | ||
| URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2021/ | | URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2021/20210302en.html#en55108 | ||
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Latest revision as of 07:30, 2 March 2021
| Where | |
|---|---|
| Pacific Calibration Specialties Antioch, California (NRC Region 4) | |
| License number: | 5634-07 |
| Organization: | California Radiation Control Prgm |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+153.03 h6.376 days <br />0.911 weeks <br />0.21 months <br />) | |
| Opened: | Nika Hewdikaram 17:02 Feb 19, 2021 |
| NRC Officer: | Howie Crouch |
| Last Updated: | Feb 19, 2021 |
| 55108 - NRC Website | |