United States of America

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Overexposure to Radiation Worker

This is an isotope manufacturing facility. The licensee technician needed to transfer a Co-60 source drawer into a shielded container called a therapy head. A special handling tool had been bolted to the end of the source drawer and this tool was needed to safely transfer the source back inside the therapy head. The technician attempted to move the source drawer in order to gain access to the handling tool but the source drawer was stuck, so the technician pulled on the drawer.

Category: Radioisotope Processing/Handling Facility United States of America »

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Overexposure to Nuclear Medicine Technologist

In February 2015, it was determined that a nuclear medicine technologist received a cumulative annual whole body dose of 110 mSv (11 rem) for the time period of September 01, 2014 to January 07, 2015, which exceeds the annual statutory dose limit of 50 mSv (5 rem). The State completed their investigation and confirmed the validity of the whole body dose on July 13, 2015. The staff member received 100 mSv (10 rem) for 2014 and 10.1 mSv (1.01 rem) for 2015. NRC EN50877.

Category: Other United States of America »

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Overexposure to Nuclear Medicine Technologist

In February 2015, it was determined that a nuclear medicine technologist received a cumulative annual whole body dose of 110 mSv (11 rem) for the time period of September 01, 2014 to January 07, 2015, which exceeds the annual statutory dose limit of 50 mSv (5 rem). The State completed their investigation and confirmed the validity of the whole body dose on July 13, 2015. The staff member received 100 mSv (10 rem) for 2014 and 10.1 mSv (1.01 rem) for 2015. NRC EN50877.

Category: Other United States of America »

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Overexposure to Radiographer

The Lead Radiographer and three assistant radiographers were completing two exposures lasting 35 seconds each. The set-up time for the exposures was approximately 15 to 18 minutes. After completing two exposures, one individual noticed that his pocket dosimeter read off scale, a second individual read their dosimetry at 0.5 mSv (50 mrem), the third individual read their pocket dosimeter as off scale, and the fourth individual was not wearing a dosimeter. Two individuals were wearing functioning rate meters and two were not.

Category: Radiation Source United States of America »

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Overexposure to Radiographer

While on location at a temporary jobsite, the licensee radiographer attempted to disconnect the guide tube from the radiography camera, without ensuring the source was in the shielded position. The licensee has confirmed a whole body dose of 64 mSv (6.4 rem) which exceeds the statutory dose limit of 50 mSv (5 rem). The licensee also confirmed a hand dose of 2,060 mSv (206 rem) which exceeds the statutory limit of 500 mSv (50 rem) for extremities. NRC EN50745.

Category: Radiation Source United States of America »

Global nuclear decommissioning cost seen underestimated, may spiral

Monday, January 19, 2015

LONDON/PARIS (Reuters) - German utility E.ON's breakup has led to worries that funds set aside for decommissioning reactors will not suffice, but globally the cost of unwinding nuclear is uncertain as estimates range widely.

As ageing first-generation reactors close, the true cost of decommissioning will be crucial for the future of the nuclear industry, already ailing following the 2011 Fukushima disaster and competition from cheap shale gas, falling oil prices and a flood of renewable energy from wind and solar.

Posted in | »

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Overexposure to Member of the Public

The patient received 555 MBq (15 mCi) of I-131 for therapy conducted from March 22, 2013, through March 29, 2013. During the patient’s hospitalization, visitors, including family members, were provided with radiation badges to monitor exposure. The badges were processed by Landauer on May 5, 2013, and the results of the badge reading indicate that a family member appears to have received 59 mSv (5.9 rem) effective dose equivalent during the period of the patient’s hospitalization.

Category: Other United States of America »

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Overexposure to Radiographer

Two radiography trainees were performing industrial radiography inside a tank. The first trainee handled the guide tube of a radiography camera while the Ir-192 source was in the guide tube. The Ir-192 source contained 2553 GBq (69 curies).The first trainee was not wearing his personnel monitoring devices because he had left them in the truck. He also was not using a survey meter.

Category: Radiation Source United States of America »

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Overexposure to Radiographer

A lead radiographer approached the end of the guide tube having assumed that the source had already been retracted into the shielded camera. After approximately 90 seconds the assistant radiographer entered the area. The assistant radiographer’s alarming rate meter and survey meter indicated the presence of radiation and the two individuals left the area. The lead radiographer was wearing a whole body dosimetry badge which was sent for emergency processing. The dosimeter was measured by the vendor at 8.36 mSv (836 mrem).

Category: Radiation Source United States of America »

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Overexposure to Member of the Public

The Texas Department of State Health Services was informed of an incident involving industrial radiography of a pressure vessel. A site foreman was present in the work area with the radiographer. The radiographer approached the source collimator to change the film and realized the source was still in the exposed position. It is estimated that the site foreman received an unintended dose. The site foreman reported he was in the area for 5-8 minutes and approximately 12-24 inches from the source. A calculated dose for 8 minutes at a distance of 1 foot from the 67 Ci Ir-192 source was 40 rem.

Category: Radiation Source United States of America »