ML24234A298
| ML24234A298 | |
| Person / Time | |
|---|---|
| Issue date: | 08/21/2024 |
| From: | Tanya Smith Office of Nuclear Material Safety and Safeguards |
| To: | |
| References | |
| EN56923 | |
| Download: ML24234A298 (1) | |
Text
Posted by: Todd Smith, Nuclear Regulatory Commission (NRC), United States of America INES EVENT RATING FORM Page 1 of 1 INES Event Rating Form (ERF)
Version 1 Sender's Name:
Todd Smith Sender's Organization:
Nuclear Regulatory Commission (NRC) (United States of America)
Event
Title:
Worker Exceeded Annual Dose Limit Event Date:
2023-12-11 Location / Facility:
Romeoville, Illinois/ SOFIE Event Country:
United States of America Event Type:
Other INES Rating:
2 - Incident (Final)
Rating Date:
2024-08-21 Impact on people and the environment Release beyond authorized limits?
No Overexposure of a member of the public?
No Overexposure of a worker?
Yes Impact on the radiological barriers and controls at facilities Contamination spread within the facility?
No Damage to radiological barriers (incl. fuel damage) within the facility?
No Degradation of Defence In-Depth?
No Other information Person injured physically or casualty?
No Is there a continuing problem?
No Event Description On December 11, 2023, a pharmaceutical technician noted a pressure issue with a synthesis cell, which contained 11.29 GBq (305 mCi) of Fluorine-18. The pharmaceutical technician opened the synthesis cell and Fluorine-18 splashed onto their upper chest, neck, and underarm. The pharmaceutical technician could feel wetness after the incident, and decontamination efforts were initiated within 3 to 5 minutes. The skin exposure calculations, based on radiological survey results, indicated that the pharmaceutical technician received an estimated shallow dose equivalent of 0.902 Sv (90.2 rem). The dose to the employee exceeded the U.S. regulatory limit for the annual dose to the skin of the extremities of 0.5 Sv (50 rem). NRC Event Number56923 Rating Justification A Level 2 is warranted for exposure of a worker in excess of statutory annual dose limits. See Section 2.3.1 INES Users Manual 2008 Edition (IAEA-INES-2009) http://www-pub.iaea.org/MTCD/publications/PDF/INES-2009_web.pdf Press Release Attached:
No Technical Document Attached:
No Further Information on Web:
Contact Person:
Todd Smith Affiliation:
Nuclear Regulatory Commission (NRC)
Email:
todd.smith@nrc.gov Telephone:
+13018165100 Organization on Web: