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Upimage intensifier

image photon counting system comparison table
Subject has definition has acronym is a kind of
image intensifierAn electronic device for increasing the brightness of a faint optical image. The image is first formed on a thin metallic surface called a photocathode from which electrons are then ejected. The stream of electrons is accelerated and focussed onto a phosphorescent screen which glows brightly as a result of the impact. imager
image photon counting systemA form of very low light level detector used in astronomy. By means of an image intensifier the IPCS is capable of counting individual photons of light.IPCSimage intensifier

Upimage intensifier