Townsend characteristic

Townsend characteristic

[′tau̇n·zənd ‚kar·ik·tə‚ris·tik]
(electronics)
Current-voltage characteristic curve for a phototube at constant illumination and at voltages below that at which a glow discharge occurs.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.