In the photosensor field, photomultiplier tubes (or PMT) are known to have particularly high sensitivity. PMT also have dozens of other advantages such as high-speed response time.
Electron multiplier tubes are also called electron multipliers or ion multipliers, and are used to detect electrons, ions, charged particles, vacuum ultraviolet rays, and soft X-rays, etc.
The UVtrons are UV sensors that utilize the photoelectric effect from metal and gas multiplication. These devices are sensitive only to UV light in a spectral range of 185 nm to 260 nm.
MCP is an electron multiplier that detects and multiplies electrons in two dimensions. MCP is also sensitive to ions, vacuum UV rays, X-rays and gamma rays and so can also be used as devices to detect their position and energy.
Image intensifiers produce high-contrast images even under dark conditions, and are used for night-time (surveillance) viewing as well as for scientific and technical research.
Photon Detection Units are photon counting units designed to make low-light measurements at single photon levels without a time-consuming measurement setup.
The C9536/H9535 series are UV power meters that directly measure UV light at specific wavelengths. The H9535 (sensor head) uses a UV sensor (phototube) that ensures stable UV measurement over a long period of operation and is calibrated in combination with the C9536 (controller) based on NIST standards.