PHOTONIS Introduces a New High Quantum Efficiency Photocathode

Feb 02nd 2016

New Hi-QE Photocathode increases QE 50% over S20 types.

Roden, NL - PHOTONIS Netherlands announced the release of a new photocathode designed to provide a unique combination of extremely low dark counts, fast
response time, and a high quantum efficiency. Hi-QE Photocathodes are engineered to provide heightened spectral sensitivity in specific wavelength ranges for use in photon-starved applications.

The Hi-QE Photocathode increases quantum efficiency (QE) 50% when compared to standard S20 photocathodes, while lowering dark counts as much as 10X with near-symmetrical pulse height distribution. Currently the spectral ranges cover UV, Blue and Green wavelengths.

The new photocathodes are offered as an option to a number of PHOTONIS photon counting products, including the hybrid photo diode, image intensifier, and MCP-PMT families of detectors. The Hi-QE option can also be specified for the Imaging Photon Camera, which provides high spatial resolution (<40μm in X and Y) as well as high timing resolution (<100ps). Cross strip, cross delay line, and resistive anode readouts are available for the camera.

PHOTONIS’ new Hi-QE Photocathode is ideal for use in extremely low light level applications, including astronomy, biology, fluorescence, plasma research or nuclear physics. Additionally, the combination of detection efficiency, speed and low signal-to-noise ratio enhances the capabilities in single photon counting applications.

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