supercritical reactor

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supercritical reactor

[¦sü·pər′krid·ə·kəl rē′ak·tər]
(nucleonics)
A nuclear reactor in which the effective multiplication constant is greater than 1 and consequently a reactor that is increasing its power level; if uncontrolled, a supercritical reactor will undergo a sudden and dangerous rise in power level.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The volume is divided into sections covering general concepts and theory, nuclear fission, broad application reactor technology, gen IV reactor technology, thermonuclear fusion, low-energy nuclear reactions and advanced concepts, and individual entries cover such topics as the history of nuclear energy operations, the uranium-plutonium nuclear fuel cycle, hydrogeology and nuclear energy, supercritical water reactors, safety and environmental advances and transmutation in low energy nuclear reactions.