Radioisotope Processing/Handling Facility

Types of facilities

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Cyclotron operated with an open bunker door

On the 12th of October 2016 the Swedish Radiation Safety Authority was informed about an event that occurred on the 7th of October where a cyclotron was operated with an open bunker door. The licensee is authorised to produce short lived isotopes used for medical
diagnostics. The bunker is supposed to be sealed with interlocks preventing operation of the cyclotron with an open door. At the time of the event a study visit was performed at the facility by hospital personnel from the whole of Sweden lead by a representative from

Category: Radioisotope Processing/Handling Facility Sweden »

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Overdose to Nuclear Pharmacist

The licensee (PETNET Solutions) has confirmed an extremity dose of greater than 0.5 Sv (50 rem) to one of its nuclear pharmacists. Dosimetry results for a ring badge worn on the pharmacist’s right ring finger accumulated a total dose of 0.511 Sv (51.1 rem) for the year as of October 19, 2016. The pharmacist received the dose while working at the licensee's locations in Phoenix, Arizona, and Portland, Oregon. The pharmacist has been placed on work restrictions. The licensee expects to complete a root cause analysis within 2 weeks. NRC EN52350

Category: Radioisotope Processing/Handling Facility 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 of a worker

On the 28th of January 2015, during an inspection of nuclear materials, a radiation worker accompanying the inspectors entered a hot cell containing a source of radiation. Worker remained inside the cell for about 1 minute. Worker’s personal dosimeter recorded an effective dose of 31 mSv which exceeds the annual statutory dose limit for radiation workers (20mSv). Doses received by the 3 inspectors present at the scene probably did not exceed 1 mSv (dose 0.7 mSv measured with personal electronic dosimeter, personal thermoluminescent dosimeters to be read).

Category: Radioisotope Processing/Handling Facility Poland »

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Deficiency in the determination of the uranium content of liquid waste tanks

On 26 October 2013 NRG reports that the of concentration Uranium-235 in one of the liquid waste tanks in the Molybdenum Production Facility (MPF) appears to be higher than allowed according to the license. Therefore, a criticality incident could not be excluded. The MPF has twelve storage tanks for liquid uranium-containing waste: six for highly radioactive waste and six for waste with a lower activity. The waste is temporarily stored in the tanks awaiting transport to the Dutch processor of radioactive waste, COVRA.

Category: Radioisotope Processing/Handling Facility Netherlands Dutch NRG »

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Deficiency in the determination of the uranium content of liquid waste tanks

On 17 October 2013 NRG reports that the of concentration Uranium-235 in one of the liquid waste tanks in the Molybdenum Production Facility (MPF) appears to be higher than allowed according to the license. Therefore, a criticality incident could not be excluded. The MPF has twelve storage tanks for liquid uranium-containing waste: six for highly radioactive waste and six for waste with a lower activity. The waste is temporarily stored in the tanks awaiting transport to the Dutch processor of radioactive waste, COVRA.

Category: Radioisotope Processing/Handling Facility Netherlands »

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Overexposure of a worker

A laboratory worker was contaminated with I-131 in a radiopharmaceutical company on February 28 2013. The worker was wearing two pairs of gloves and, when changing gloves, had noticed a break in the right inner glove, but not any obvious break in the outer latex glove. Only 3-4 hours later, routine monitoring revealed heavy contamination of the dorsal part of the right hand. Immediate actions to decontaminate the hand were undertaken on site.

Category: Radioisotope Processing/Handling Facility Finland »