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A criticality accident occurred on December 30, 1958, at Los Alamos National Laboratory (LANL) in Los Alamos, New Mexico, in the United States It is one of 60 known criticality events that have occurred globally outside the controlled conditions of a nuclear reactor or test; though it was the third such event that took place in 1958 after events on June 16 [1] at the Y-12 Plant in Oak Ridge ...
Criticality accidents are divided into one of two categories: Process accidents, where controls in place to prevent any criticality are breached;; Reactor accidents, which occur due to operator errors or other unintended events (e.g., during maintenance or fuel loading) in locations intended to achieve or approach criticality, such as nuclear power plants, nuclear reactors, and nuclear ...
15 October 1958: Vinča, Yugoslavia. There was a criticality incident in a newly installed reactor. Six young researchers received high doses of radiation, and were subsequently treated at "Kiri" institute in Paris where one of them died. [citation needed] 30 December 1958: Cecil Kelley criticality accident at Los Alamos National Laboratory ...
The criticality accident at the Tokai fuel fabrication facility. [42] Hundreds of people were exposed to radiation and two workers later died. This is not a nuclear power plant accident, however. [46] 2: 4 2002: Onagawa, Japan: Two workers were exposed to a small amount of radiation and suffered minor burns during a fire. [46] 0: 9 Aug 2004 ...
1993 Tomsk-7 accident at the Reprocessing Complex in Seversk, Russia, when a tank exploded while being cleaned with nitric acid. The explosion released a cloud of radioactive gas (INES level 4). The explosion released a cloud of radioactive gas (INES level 4).
The Socialist Federal Republic of Yugoslavia began its own nuclear weapons program in the early 1950s, amid rising tensions with the Soviet Union during the Informbiro period. Yugoslavian leader Josip Broz Tito decided that the development of nuclear technology was in the country's best interest as deterrence from a possible invasion and in ...
Criticality accident: A worker at a United Nuclear Corporation fuel facility caused an accidental criticality. Robert Peabody, believing he was using a diluted uranium solution, accidentally put concentrated solution into an agitation tank containing sodium carbonate. Peabody was exposed to 100 Gy (10,000 rad) of radiation and died two days later.
On 15 October 1958, there was a criticality accident at one of the research reactors. Six workers received large doses of radiation. One died shortly afterwards; [10] the other five received the first ever bone marrow transplants in Europe.