Wigner release

Wigner release

[′wig·nər ri‚lēs]
(nucleonics)
The removal of thermal and radiation-induced stress (Wigner energy) from graphite structures in a nuclear reactor by heating the graphite until displaced carbon atoms return to their normal positions.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.