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slow neutron

noun, Physics.
1.
a neutron with low kinetic energy, especially one slowed by the moderator in a nuclear reactor.
Also called thermal neutron.
Origin
1930-1935
1930-35
Related forms
slow-neutron, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for slow neutron
  • Some heavy nuclei undergo fission upon the absorption of a slow neutron, and some do not.
  • Will here be applied to the resonances seen in slow neutron and proton scattering.
British Dictionary definitions for slow neutron

slow neutron

noun
1.
(physics) a neutron having a kinetic energy of less than 100 electronvolts
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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slow neutron in Science
slow neutron
  (slō)   
A neutron that is in thermal equilibrium with the surrounding medium, especially one produced by fission in a nuclear reactor, and slowed by a moderator. The uranium 235 used in thermal nuclear reactors undergoes fission more readily when struck by slow neutrons than when struck by the fast neutrons released by fission. Also called thermal neutron. Compare fast neutron.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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