graphite-moderated reactor


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graphite-moderated reactor

[′gra‚fīt ¦mäd·ə‚rād·əd rē′ak·tər]
(nucleonics)
A nuclear reactor in which graphite is the principal moderating material.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The 5-megawatt graphite-moderated reactor, capable of yielding five to seven kilograms of weapons-grade plutonium annually, was dismantled late last year, with no signs of reprocessing activities there anymore.
In May 1994, tensions spiked as the North began to remove some 8,000 spent fuel rods from its graphite-moderated reactor ?
In a written interview with Kyodo, the North's Atomic Energy Institute, which has jurisdiction over its main Yongbyon nuclear facilities, said: "We have reprocessed spent nuclear fuel rods removed from a graphite-moderated reactor." The institute also said North Korea had been producing highly enriched uranium necessary for nuclear arms and power "as scheduled", Kyodo added.
"We have reprocessed spent nuclear fuel rods removed from a graphite-moderated reactor," the Atomic Energy Institute, which has jurisdiction over the reclusive state's main nuclear facilities at the Yongbyon complex, said in a written interview with (https://english.kyodonews.jp/news/2016/08/428195.html) Kyodo News . Pyongyang had also been manufacturing highly enriched uranium required for nuclear arms and power "as scheduled," the Institute added.
RBMK-1500 reactor, which previously operated on Ignalina NPP site, is a multichannel boiling water and graphite-moderated reactor. The graphite blocks are assembled within the inner cavity of the reactor on a supporting metal structure.
The North was prepared to allow verification of the shutdown and decommissioning of its graphite-moderated reactor (responsible for producing enough plutonium for several bombs), but was not prepared to allow inspections of undeclared sites.
"North Korea is asking the world 'What are you going to do about this?"' North Korea added the 5-megawatt, graphite-moderated reactor to its nuclear complex at Nyongbyon in 1986 after seven years of construction.
They are type VVER 440-230, RMBK 1000 or boiling-water, graphite-moderated reactor. Their expected lifetime is 30 years, which they will reach between 2001 and 2009.
North Korea did maintenance work on its experimental graphite-moderated reactor and nuclear fuel reprocessing plant even after signing a 1994 non-nuclear pact with the United States freezing the facilities, an International Atomic Energy Agency spokesperson said Friday.
* The immediate shutting down and eventual dismantling of the North's graphite-moderated reactor program;
The Soviet accident apparently occurred in what is known as a "channel-type, light-water-cooled graphite-moderated reactor,' according to Scott Peters of the Atomic Industrial Forum, a nuclear industry group based in Bethesda, Md.
South Korea's Yonhap News Agency reported that the graphite-moderated reactor has been used to make weapons-grade plutonium and is capable of producing spent fuel rods, which when reprocessed, could help the country procure enough plutonium that could make one bomb a year.