Phototubes are vacuum photodiodes that are used for moderate light levels. A photocathode converts the light into electrons which are captured by an anode. They can operate from vacuum ultraviolet (115 nm) to visible and even near infrared (850 nm). Biplanar phototubes feature a fast rise time of up to 60 picoseconds and are suitable for laser monitoring applications.
Phototubes are vacuum photodiodes that are used for moderate light levels. A photocathode converts the light into electrons which are captured by an anode. They can operate from vacuum ultraviolet (115 nm) to visible and even near infrared (850 nm). Biplanar phototubes feature a fast rise time of up to 60 picoseconds and are suitable for laser monitoring applications.