Radiological Accident in the Reprocessing Plant at Tomsk

On 6 April 1993 a major radiological accident occurred at a plutonium extraction facility at a location then known as Tomsk-7, Russian Federation. The accident blew the concrete cover off the reaction vessel and led to widespread contamination of the site and the surrounding area up to a distance of 28 km. The report describes the events leading up to the accident and the radiological consequences. It provides a detailed description of the decontamination and recovery operations and gives an analysis of their effectiveness.