Overexposure to workers to radiografic source

Print View Posted on: 01 October 2014

Event Date: 17 July 2014 Event Type: Radiation Source
Event Location: Norway, Oceaneering Asset Integrity INES Rating: 2 (Final)

Three workers were exposed to doses while working in a bunker. One worker was shielded, two were not.
The source is Se-75 1,5 TBq
Two workers were exposed to approx. 30 mSv, well above the annual limit of 20 mSv
The shielded workers dose was approx. 0.6 mSv.

None of the workers had dosimeters.

INES Rating: 2 - Incident (Final) as per 01 October 2014
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

Monica Dobbertin
Norwegian Radiation Protection Authority
Monica.Dobbertin@nrpa.no
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