Fermi age equation

Fermi age equation

[′fer·mē ¦āj i‚kwā·zhən]
(nucleonics)
An equation in the Fermi age model which states that the Laplacian of the slowing-down density equals the partial derivative of the slowing-down density with respect to the Fermi age.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.