photocathode Definition
- 1a cathode that emits electrons when struck by light or other electromagnetic radiation
- 2a photosensitive electrode that releases electrons when exposed to light
Using photocathode: Examples
Take a moment to familiarize yourself with how "photocathode" can be used in various situations through the following examples!
Example
Photocathodes are used in photomultiplier tubes and image intensifiers.
Example
The photocathode of an image intensifier converts photons into electrons.
📌
Summary: photocathode in Brief
A 'photocathode' [foh-toh-kuh-thohd] is a photosensitive electrode that emits electrons when exposed to light. It is commonly used in devices such as photomultiplier tubes and image intensifiers, where it converts photons into electrons.
