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electron multiplying CCD (EMCCD)

An EMCCD, Electron Multiplying Charge Coupled Device (EMCCD), is a highly sensitive CCD sensor. It is also called Low Light Level CCD (LLLCCD or L3CCD).

The high light sensitivity of EMCCD devices is achieved by an integrated electron multiplier. Electron multiplication occurs in charge-coupled shift registers, several of which are connected in series and successively traversed by the electrons. In each individual shift register, multiplication takes place by means of an avalanche effect.

The number of amplifier stages determines the amplification factor. By integrating the amplifier stages into the charge coupled device, the inherent noise is low and the signal-to-noise ratio improves with multiplication.

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Englisch: electron multiplying CCD - EMCCD
Updated at: 26.10.2016
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