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More than 30 people were over-exposed to radiation when the starboard reactor cooling system failed and the reactor temp rose uncontrollably. Emergency repairs ordered by the captain successfully cooled the reactor and avoided meltdown, but exposed the workers to high levels of radiation. [17] 8 Radiation accident in Morocco: 1984 March
1982 Lost radiation source in Baku, Azerbaijan, USSR. [6] 1980 Houston radiotherapy accident. [6] [7] 1979 Church Rock uranium mill spill; 1979 Three Mile Island accident and Three Mile Island accident health effects; 1974–1976 Columbus radiotherapy accident. [6] [7] 1969 Lucens reactor; 1968 Thule B-52 crash; 1966 Palomares B-52 crash
Nuclear submarine accidents include the K-19 (1961), K-11 (1965), K-27 (1968), K-140 (1968), K-429 (1970), K-222 (1980), and K-431 (1985) [11] [13] [14] accidents. Serious radiation incidents/accidents include the Kyshtym disaster, the Windscale fire, the radiotherapy accident in Costa Rica, [15] the radiotherapy accident in Zaragoza, [16] the ...
A sodium cooling system malfunction caused the meltdown of some fuel elements at the Fermi 1 fast breeder reactor. The accident was attributed to a zirconium fragment that obstructed a flow-guide in the sodium cooling system. Two of the 105 fuel assemblies melted during the accident, but no contamination was recorded outside the containment ...
Nikolai Vladimirovich Zateyev (Russian: Николай Владимирович Затеев; c. June 30, 1926 – 28 August 1998) was a Russian submariner and a Captain First Rank in the Soviet Navy, notable as the commander of the ill-fated Soviet submarine K-19 in July 1961 during the Hotel class submarine's nuclear-reactor coolant leak.
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 ...
The world's first major nuclear reactor accident. [20] 0: See NRX accident 5 [21] [22] May 24, 1958: CRL, Ontario, Canada: The NRU accident. A fuel rod caught fire and broke when removed, then dispersed fission products and alpha-emitting particles in the reactor building. 0: See NRU accident. November 1978: WR-1 Reactor at Pinawa, Manitoba, Canada
A radiation alarm was transmitted only after a chemical officer and a doctor requested it. K-27 resurfaced and returned from training area to its home base using the starboard reactor. The submarine was placed at pier in Severomorsk and a depot ship continuously piped steam to the submarine to avoid cooling of heat-transfer metal in the reactor ...