radiographic equivalence factor

radiographic equivalence factor

[¦rād·ē·ə¦graf·ik i′kwiv·ə·ləns ‚fak·tər]
(nucleonics)
The reciprocal of the thickness of a specified material having the same radiographic absorption as a unit thickness of a standard material.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.