Branley-Lenard effect

Branley-Lenard effect

[′bran·lē ′len·ərd i‚fekt]
(electronics)
The strong ionization of air and other gases by ultraviolet radiation with wavelengths in the range 120-150 nanometers.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.