slowing-down area

slowing-down area

[¦slō·iŋ ¦dau̇n ′er·ē·ə]
(nucleonics)
One-sixth of the mean square distance from the source of a neutron in an infinite, homogeneous medium to the point at which the neutron reaches a given energy.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Mentioned in ?