Overexposure to Radiographer’s Assistant


Print View Posted on: 24 August 2012

Event Date: 06 April 2012 Event Type: Radiation Source
Event Location: United States of America, Tampa, Florida/Renegade Testing & Inspection, INC. INES Rating: 2 (Final)

On April 16, 2012, the licensee radiographer’s assistant informed the licensee Radiation Safety Officer that his pocket dosimeter had gone off scale 10 days prior. The licensee sent the radiographer’s permanent badge for processing and the result was a 250 mSv (25 rem) whole body dose reading. The State of Florida was informed of the dose on April 24, and has verified the dose. The State of Florida continues its investigation.

Update 8/15/2012: The radiographer assistant’s film badge was sent for processing. Results revealed a 244 mSv (24.4 rem) whole body dose, which brought his annual dose to 248 mSv (24.8 rem). The direct cause of the incident was the failure to follow radiation safety procedures. The dose information in the final rating has been updated. It was determined that the rating is still INES Level 2. NRC EN47860.

INES Rating: 2 - Incident (Final) as per 24 August 2012
Release beyond authorized limits? No
Overexposure of a member of the public? No
Overexposure of a worker? Yes

Contamination spread within the facility? No
Damage to radiological barriers (incl. fuel damage) within the facility? No

Degradation of Defence In-Depth No

Person injured physically or casualty? No
Is there a continuing problem? No

Patricia Milligan, Office of Nuclear Security and Incident Response
U.S. Nuclear Regulatory Commission

patricia.milligan@nrc.gov
http://www.nrc.gov/
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