An electronic circuit is presented which can be used in digital pulse counting applications such as ESCA, Auger spectroscopy, UPS, etc. It consists of a quartz crystal clock and integrated circuits, and can be interfaced easily to a laboratory computer through a parallel board. A modification allows this circuit to be used as a counter with a time delay, thus making it useful in applications involving time-of-flight mass spectrometry.
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Gilbert et al. (1982) studied this question.
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