Research Facility

Types of facilities

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INES-event
INES 2

Exposure of a worker in excess of statutory annual dose limits

On 3rd September 2013, the French Alternative Energies and Atomic Energy Commission (CEA) notified ASN of an exposure incident of a worker from one of its outside contractors.

The exposure occurred on 23rd August 2013 during low level waste and rubble sorting operation at the Laboratory of Activated Material Analysis (LAMA), under decommissioning.

ASN has conducted an inspection of CEA on 6th September 2013 in order to determine the circumstances of the event, to check the operation conditions and to investigate the causes of this event. Corrective actions have been required by ASN.

Category: Research Facility France »

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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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Loss of Radiation Source

Refer to the event reported on 2009/09/07 on loss of a Neutron Source (Am-Be), after intensive investigation, the source was found and returned to the Atomic Energy Organization of Iran (AEOI) for respected QC and recertification.

Category: Research Facility Iran »

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Worker Overexposure

The Licensee reported a potential overexposure based on a ring dosimetry report that indicated a dose between 119 and 40 mSv (11.9 and 4 rem). Licensee investigations indicated that a research technician is believed to have received between 0.5 to 4 Sv (50 to 400 rem) to his fingertips due to improper handling of bromine-76. The range of the 0.5 to 4 Sv dose estimate was based on interviews with the technician and the results of a Varskin computer calculation. There were no observable effects to the fingertips.

Category: Research Facility United States of America »

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Contamination of workers during dismantling of alpha dry glove boxes

During the second half of June and beginning of July 2001 the alpha dry glove boxes were dismantled in the Nuclear Research Institute Rez. The boxes were part of the facility for production of fire detectors of a Czech firm. Material from these boxes was contaminated by Am 241 and was after fragmentation put into casks used for storage of radwaste materials. During the performed operations the dust particles with Am 341 were released and were partially inhaled by the four workers performing fragmentation operations.

Category: Research Facility Czech Republic »

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Plutonium uptake at Chalk River Facilities

On May 26, 1999, four AECL employees entered a controlled radiological zone to perform work on a ventilation system. The work involved the removal of a component (baffle box) in a room in a building that contained a plutonium processing facility. The facility has been non-functional since 1957, and remained in a dormant state in preparation for decomissioning.

Category: Research Facility Canada »

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INES [N/A]

Small fire in the research reactor LR-O building in Rez

The research reactor LR-O in Rez was in shutdown because of a central heating reconstruction. On May 20, 1997 at 9.00 a.m. a small fire occurred in the reactor building. Isolations of pipes and cables burned in the central heat exchanger room, which is situated out of the radiological controlled area. The fire was caused by external workers and extinguished very quickly. No injuries occurred, no influence on nuclear safety was assessed. The event is reported because of a possible public interest.

Category: Research Facility Czech Republic »