photomultiplier tube
Also known as photomultiplier, multiplier phototube
device used in electrical engineering
Wikidata facts
- Image
- Pmside.jpg
Show 2 more facts
- Commons category
- Photomultipliers
- Commons gallery
- Photomultiplier
Sources (2)
via Wikidata · CC0
~28 min read
Article
Photomultiplier
Photomultiplier tubes (photomultipliers or PMTs for short) are extremely sensitive detectors of light in the ultraviolet, visible, and near-infrared ranges of the electromagnetic spectrum. They are members of the class of vacuum tubes, more specifically vacuum phototubes. These detectors multiply the current produced by incident light by as much as 100 million times or 10 (i.e., 160 dB), in multiple dynode stages, enabling (for example) individual photons to be detected when the incident flux of light is low.