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2007 ISO radioactivity danger symbol intended for IAEA Category 1, 2, and 3 sources defined as dangerous sources capable of causing death or serious injury [1]. This article lists notable civilian accidents involving radioactive materials or involving ionizing radiation from artificial sources such as x-ray tubes and particle accelerators.
Examples include lethal effects to individuals, large radioactivity release to the environment, or a reactor core melt. [6] The prime example of a "major nuclear accident" is one in which a reactor core is damaged and significant amounts of radioactive isotopes are released, such as in the Chernobyl disaster in 1986 and Fukushima nuclear ...
2024 Nuclear incident at Khabarovsk, Russia; 2022–2023 Monticello Nuclear Generating Plant leak; 2019 Radiation release during explosion and fire at Russian nuclear missile test site; 2017 Airborne radioactivity increase in Europe in autumn 2017; 2011 Fukushima Daiichi nuclear disaster; 2001 Instituto Oncologico Nacional radiotherapy accident
The Windscale fire resulted when uranium metal fuel ignited inside plutonium production piles; surrounding dairy farms were contaminated. [33] [34] The severity of the incident was covered up at the time by the UK government, as Prime Minister Harold Macmillan feared that it would harm British nuclear relations with America, and so original reports on the disaster and its health impacts were ...
The incident released the bomber's two Mark 39 nuclear bombs. Three of the four arming devices on one of the bombs activated, causing it to carry out many of the steps needed to arm itself, such as the charging of the firing capacitors and, critically, the deployment of a 100-foot (30 m) diameter retardation parachute. The parachute allowed the ...
a cylinder of radioactive source material (caesium-137 in the Goiânia incident, but usually cobalt-60) The Goiânia accident [ɡojˈjɐniɐ] was a radioactive contamination accident that occurred on September 13, 1987, in Goiânia , Goiás , Brazil, after an unsecured radiotherapy source was stolen from an abandoned hospital site in the city.
Tonight's top stories include the names of the victims who tragically died in a hot air balloon crash over the weekend in Arizona. We're also learning more about the suspect who's now behind bars ...
The blood sample indicated that Kelley had been exposed to about 9 Gy from fast neutrons and 27 Gy from gamma rays; a total of 36 Gy. For an adult human, exposure to 2 Gy from an unfocused radiation source such as an excursion will cause radiation sickness but is not definitely lethal; about 4.5 to 5 Gy is the LD 50 , or median lethal dose ; 8 ...