photomultiplier cell

photomultiplier cell

[¦fōd·ō′məl·tə‚plī·ər ¦sel]
(electronics)
A transistor whose pn-junction is exposed so that it conducts more readily when illuminated.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.