An instrument to measure fluorescence lifetimes of the order of millimicroseconds is described. Following excitation by a hydrogen flash lamp, the fluorescence is observed stroboscopically with a gated photomultiplier. The method of gating is novel and achieves a time resolution comparable with fast oscilloscopes (1.8×10−9 sec). The data are presented in the form of a chart record.
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Robert Bennett (1960) studied this question.
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