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How (and why not) to Amplify PMT Signals

‘I have to detect a light signal in the ns range. I use a PMT, but the noise is too high so that I can’t see the signal. Which amplifier can I use to improve the signal-to-noise ratio?’ The answer to this frequently asked question is usually ‘none’, and the general recommendation for using an amplifier for PMT signals is ‘don’t’.

This consideration explains the peculiarities of PMT signals and gives hints to handle these signals.

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