A Monophoton Fluorometer with Energy Discrimination

A recently constructed monophoton time decay fluorometer having several novel features is described. A number of tests of the instrument's performance are presented. A method of moments is used to analyze the data. Single photon energy discrimination permits high collection rates and with coincidence circuitry improves the signal‐to‐noise ratio. Subnanosecond resolution has been achieved and double exponential decays resolved.

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