ENS 46577: Difference between revisions
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| event date = 01/13/2011 EST | | event date = 01/13/2011 EST | ||
| last update date = 03/04/2011 | | last update date = 03/04/2011 | ||
| title = Agreement State Report - Potential Dose Exceeding Annual Occupational Dose Limit | | title = Agreement State Report - Potential Dose Exceeding Annual Occupational Dose Limit for Adults | ||
| event text = The following was received via email: | | event text = The following was received via email: | ||
On 1/13/11, the licensee reported to the agency [Massachusetts Radiation Control Program] a potential dose exceeding the adult occupational total effective dose equivalent limit of 5 rem. The situation causing this event occurred during late December 2010, when a number of emergency repairs within a cyclotron were conducted over several days. The potential for overexposure was suspected on 1/5/11. A dosimeter exposure readings report of the [Optically Stimulated Luminescence OSL] was received by the licensee from the dosimeter service, after quick read, on 1/13/11. Affected individual's annual TEDE reported at 5457 mrem. Exposure (1596 mrem) obtained by official [OSL] dosimeters worn during cyclotron repair operations differed significantly from exposure (620 mrem) obtained by electronic dosimeter worn simultaneously during cyclotron repair operations. Electronic dosimeters are used by individuals for real-time readings during the repair operations. The licensee removed affected individual from any potentially high exposure operations. | On 1/13/11, the licensee reported to the agency [Massachusetts Radiation Control Program] a potential dose exceeding the adult occupational total effective dose equivalent limit of 5 rem. The situation causing this event occurred during late December 2010, when a number of emergency repairs within a cyclotron were conducted over several days. The potential for overexposure was suspected on 1/5/11. A dosimeter exposure readings report of the [Optically Stimulated Luminescence OSL] was received by the licensee from the dosimeter service, after quick read, on 1/13/11. Affected individual's annual TEDE reported at 5457 mrem. Exposure (1596 mrem) obtained by official [OSL] dosimeters worn during cyclotron repair operations differed significantly from exposure (620 mrem) obtained by electronic dosimeter worn simultaneously during cyclotron repair operations. Electronic dosimeters are used by individuals for real-time readings during the repair operations. The licensee removed affected individual from any potentially high exposure operations. | ||
Revision as of 22:07, 1 March 2018
| Where | |
|---|---|
| Massachusetts General Hospital Boston, Massachusetts (NRC Region 1) | |
| License number: | Rcn01762 |
| Organization: | Ma Radiation Control Program |
| Reporting | |
| Agreement State | |
| Time - Person (Reporting Time:+440.98 h18.374 days <br />2.625 weeks <br />0.604 months <br />) | |
| Opened: | Anthony Carpenito 13:59 Jan 31, 2011 |
| NRC Officer: | John Shoemaker |
| Last Updated: | Mar 4, 2011 |
| 46577 - NRC Website | |