N-Reactor

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The N-Reactor at the Hanford site along the Columbia River.

The N-Reactor was a graphite-moderated nuclear reactor constructed during the Cold War and operated by the U.S. government at the Hanford Site in Washington.

It was a one-of-a-kind design in the U.S., being both a power reactor used to feed the civilian electrical power grid via the Washington Public Power Supply System (WPPSS), and a plutonium production reactor for nuclear weapons.

N-Reactor was built with a confinement building instead of a containment building. In the event of an accidental release of steam, air and steam would vent through filters that confined any radioactive particles present.[1] It was partially moderated with graphite, but had a negative void coefficient, meaning it was thermally stable.[2]

The reactor was placed on cold standby in 1988, with "final disposition" beginning in 1994.

See also

References

  1. ^ US Department of State Bulletin, "Soviet nuclear reactor accident at Chernobyl"
  2. ^ [David Bodansky, Nuclear Energy Principles, Practices, and Prospects, 2004]

External links

Coordinates: 46°40′29″N 119°34′07″W / 46.674677°N 119.568672°W / 46.674677; -119.568672



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