Smith-Purcell-Salisbury effect

Smith-Purcell-Salisbury effect

[¦smith ¦pər·səl ′sȯlz·brē i‚fekt]
(physics)
The emission of nearly coherent radiation when a beam of relativistic electrons strikes a metallic diffraction grating at grazing incidence.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.