photocathode in English
noun
1
a cathode that emits electrons when illuminated, causing an electric current.
The photocathode in the night scope that converts visible light into electrons is sensitive to both visible light and some infrared radiation.
Use "photocathode" in a sentence
Below are sample sentences containing the word "photocathode" from the English Dictionary. We can refer to these sentence patterns for sentences in case of finding sample sentences with the word "photocathode", or refer to the context using the word "photocathode" in the English Dictionary.
1. Photoelectrons released from the photocathode (40) are accelerated and directed to impinge the phosphor screen (42).
2. Alternatively, the lens array can be used as a cathode lens for a photocathode with several homogenous adjacent emission areas.
3. The storage electrodes (16) in the array receive the electrons from the photocathode layer (14) and accumulate a charge pattern.
4. A novel infrared-sensitive streak image tube with a combined infrared photocathode and electrostatics focused electronic optical system is described.