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Photon counting unit



Photon counting unit is designed to convert single photoelectron pulses from a photomultiplier tube into 5 V digital signals by use of the built-in amplifier and discriminator circuits. Photon counting with a high S/N ratio can be performed by simply connecting a counter to the output of the photon counting unit. The C9744 uses a high-speed electronic circuit that allows measurement with an excellent output linearity up to 107 s-1. The C9744 also has a prescaler (division by 10) eliminating the need for a high-speed counter.

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Block diagram

Dimensional outline (Unit mm)

Connection example

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