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High quantum efficiency photocathode

17 February 2016 | Product
by Ian Michael

Photonis Netherlands has released a new photocathode designed to provide a 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 10× 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, and the Hi-QE option can also be specified for the Imaging Photon Camera.

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