A Simplified Chronotron-Type Timing Circuit

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Abstract
A timing circuit is described similar in principle to the Neddermeyer ``chronotron,'' but with the following simplifications and modifications: parallel‐wire polythene‐tape line to eliminate co‐ax ``plumbing,'' germanium crystal detectors, and a delay‐line presentation circuit. This circuit uses a single common amplifier for all pulses, which increases stability, makes adjustment easy, and effects a tenfold saving in the number of tubes. It simultaneously records time intervals in two ranges, e.g., 0–0.1 and 0–5 μsec. The precision is 1×10−9 sec., but may be increased at the expense of the range. Problems connected with coupling the instrument to parallel‐plate counters are discussed.
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