Nuclear and radiation accidents and incidents involving HEU or plutonium trafficking: A nuclear meltdown is a severe nuclear reactor accident that results in reactor core damage from overheating. It has been defined as the accidental melting of the core of a nuclear reactor, and refers to the core's either complete or partial collapse. A core melt accident occurs when the heat generated by a nuclear reactor exceeds the heat removed by the cooling systems to the point where at least one nuclear fuel element exceeds its melting point. This differs from a fuel element failure, which is not caused by high temperatures. A meltdown may be
Smolensk Nuclear Power Plant which can prevent release of radioactive material into the environment even in case of serious accident; for example breakage of pipes in the reactor cooling circuit. The reactor cooling circuit is housed in hermetic reinforced concrete boxes that can withstand a force of 4.5 kgf/cm. Smolensk Nuclear Power Plant Smolensk Nuclear Power Plant ( []) is a nuclear power station in Russia. It is located in the Smolensk region, in Desnogorsk province, approximately 100 km from Smolensk, 115 km from Bryansk and 320 km from Moscow. Smolensk Nuclear Power Plant is the biggest nuclear plant in the Nechernozem region of