rotating crystal source

rotating crystal source

[′rō‚tād·iŋ ¦krist·əl ‚sȯrs]
(nucleonics)
A source of ultracold neutrons in which neutrons are slowed down by reflection from the moving surface of a rotating mica crystal; only those neutrons which satisfy the Bragg condition for reflection from crystal planes are reflected.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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