HPD (HYBRID PHOTO-DETECTOR) MODULES

The HPD (Hybrid Photo-Detector) is a new vacuum photo-detector including a photocathode and an avalanche diode. The HPD provides a gain of more than 1000 in a single multiplication process called electron bombardment multiplication. The photoelectrons from the photo-cathode are accelerated by a strong electric field to hit the avalanche diode and release a large number of electron-hole pairs corresponding to the acceleration energy. This excellent first multiplication process enables the HPD to achieve excellent multi-photon energy resolution. This first multiplication process is followed by the second avalanche mode multiplication to provide sufficient gain for a variety of applications.
H8236 is an HPD module, containing high voltage power supplies and a pre-amplifier.

FEATURES
● Able to discriminate multi-photon events
● Low excess noise
● High Q.E. from 450 nm to 650 nm (H8236-40)
● Simple operation
   Built-in high voltage power supply and pre-amplifier
● Low after pulse

APPLICATIONS
● Photon counting application
● Low intensity pulse detection
● Laser scanning microscope
● Particle counter