China Syndrome

From Wikipedia, the free encyclopedia

The China Syndrome is a notion that refers to a possible extreme result of a nuclear meltdown in which molten reactor core products breach the barriers below them and flow downwards through the floor of the containment building. The origin of the phrase is the facetious concept that molten material from an American reactor may melt through the crust of the earth and reach China.[1]

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[edit] History and usage

The phrase arose from analysis of the consequences of failure of the core cooling system in nuclear reactors. In 1971, nuclear physicist Ralph Lapp used the term to describe the burn-through of the reactor vessel, the penetration of the concrete below it, and the emergence of a mass of hot fuel into the soil below the reactor. He based his statements on the report of a task force of nuclear physicists headed by Dr. W.K. Ergen, published in 1967.[2] The dangers of such a hypothetical accident were publicized by the 1979 film, The China Syndrome.

The name refers to the idea of the nuclear material digging a proverbial hole from the USA to 'the other side of the world', i.e. China[3] - an impossibility as the material would cool well before it reached the Earth's core, and even if it did remain hot it would not be able to displace the material around it or go all the way up to the surface in China.

If radioactive slag reached the water table beneath the reactor building, the resulting steam could throw radioactive material into the air, producing fallout.[citation needed] Despite several meltdowns in both civilian and military reactors, such an extreme meltdown has never taken place.[citation needed] Almost all current reactor designs do not allow such a meltdown to occur, either by preventing any meltdown (such as in a TRIGA reactor) or by dispersing any molten material so that it cools and solidifies.[citation needed]

[edit] In popular fiction

[edit] In popular music

  • 'Overreaction' by the Canadian progressive thrash band 'Voivod', taken from their 1987 album Killing Technology, mentions the China Syndrome. Drummer Away has said that the song is about the China Syndrome[citation needed], though lyrics like 'The China Syndrome will die much later than you / The China Syndrome / In the air, it smells bad / Feel the disease, the nuclearchy [sic]' suggest Voivod may not have been aware to what specific theory the term was applied: the meltdown referred to in the song, from which there appears to be massive fallout, shares no unique characteristics with an occurrence of China Syndrome. Originally titled 'Uncontrolled Reaction' and penned within weeks of the Chernobyl disaster, the song is much more likely based on accounts of this well-publicised event.

[edit] See also

[edit] References

  1. ^ China Syndrome. (2008). In Merriam-Webster Online Dictionary. Retrieved May 26, 2008, from http://www.merriam-webster.com/dictionary/China+Syndrome
  2. ^ Lapp, Ralph E. "Thoughts on nuclear plumbing." The New York Times, Dec. 12, 1971, pg. E11.
  3. ^ China Syndrome. (2008). In Merriam-Webster Online Dictionary. Retrieved May 26, 2008, from http://www.merriam-webster.com/dictionary/China+Syndrome
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