United States of America

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INES-event
INES 2

Overexposure to Radiopharmacy Worker

A radiopharmacy worker has received a cumulative annual extremity dose of 559 mSv (55.9 rem) to the right hand, and 543 mSv (54.3 rem) to the left hand, which exceeds the statutory dose limit of 500 mSv (50 rem) to the extremities. The worker has been removed from job duties involving radiation exposure. NRC EN49493.

Category: Other United States of America »

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Overexposure to Radiopharmacy Worker

A radiopharmacy worker received an overdose to both hands. The worker received 576 mSv (57.6) rem to the left finger and 527 mSv (52.7) rem to the right finger. The licensee is investigating to determine the root cause and the timeframe of the overdose. NRC EN49402.

Category: Other United States of America »

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Overexposure to Radiographer

Due to cumulative exposure, a radiographer has received a 51 mSv (5.1 rem) dose for 2012, which exceeds the statutory limit of 50 mSv (5 rem) for a radiation worker. NRC EN49329.

Category: Radiation Source United States of America »

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Overexposure to Radiographer

Due to cumulative exposure, a radiographer has received a 74 mSv (7.1 rem) dose through June 2013, which exceeds the statutory limit of 50 mSv (5 rem) for a radiation worker. NRC EN49330.

Category: Radiation Source United States of America »

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Radiographer Overexposure

The Oklahoma Department of Environmental Quality was informed of an overexposure of a radiographer assistant employed by Western X-ray Services. The dose involved is 51 mSv (5.1 rem). On seven occasions during 2012, the dosimetry vendor had contacted Western X-Ray Services to inform them of the high dosimetry dose readings for the radiographer assistant. The supervising radiographer whom the radiographer assistant had worked with stated that there were no unusual incidents or equipment problems with their QSA Global model 660 exposure device and the Ir-192 sources.

Category: Radiation Source United States of America »

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Radiographer Overexposure

The Oklahoma Department of Environmental Quality was informed of an overexposure of a radiographer employed by Tulsa Gamma Ray. The total dose for the year to date involved is 67 mSv (6.7 rem). It is unknown at this time whether the exposure was acute or chronic. More details will be provided as they become available. NRC EN48836.

Category: Radiation Source United States of America »

INES-event
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Overexposure to Radiographer’s Assistant

A radiographer assistant exceeded the 50 mSv (5 rem) exposure limit for 2012. This individual consistently had higher exposures than other employees and had failed to turn in his badge at the end of April 2012, instead continuing to wear it through May. At the end of October, the assistant again failed to turn in his badge and wore it through November, but turned in his December badge. After his badge worn during October and November 2012 was finally turned in and processed, it was identified that his total dose for the year 2012 was 59 mSv (5.9 rem).

Category: Radiation Source United States of America »

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Uranium 233 / 238 Inhalation Overexposure

A graduate student inhaled a mixture of U-233 and U-238 while working in a lab grinding a compound of uranium octoxide. The student used a glove box instead of a hood with a high-efficiency particulate air (HEPA) filter, contrary to the University of Nevada Las Vegas approved procedure. This happened twice, possibly between October 1, 2011 and April 1, 2012. The first bioassay, based on an inhalation date of October 1, 2011, resulted in a dose of 177.2 mSv (17.72 rem) total. When the inhalation date was assumed to be April 1, 2012, the result was 55.2 mSv (5.52 rem).

Category: Research Facility United States of America »

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Overexposure to Radiographer’s Assistant

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.

Category: Radiation Source United States of America »

Dominion reactor parts from company that supplied shut Belgian unit

Wednesday, August 15, 2012

Dominion's four Virginia nuclear units have reactor pressure vessels made by the same manufacturer that supplied a Belgian reactor shut down because of possible vessel cracking, a Dominion spokesman said Friday.

Dominion is following developments in Belgium, but has not been notified by the US Nuclear Regulatory Commission of any information related to the incident, Richard Zuercher said.

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