A New Constant Fraction Timing System with Improved Time Derivation Characteristics
- 1 February 1976
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science
- Vol. 23 (1) , 234-243
- https://doi.org/10.1109/tns.1976.4328245
Abstract
A constant fraction timing system having excellent time derivation properties over a wide dynamic range of signals is described. Leading edge walk is significantly reduced by arming the constant fraction zero-crossing circuit with a discriminator that is separate from the energy discriminator. Timing resolution with Ge(Li) detectors can be improved by the optional use of a slow risetime reject circuit, but only at the expense of reduced counting efficiency. This performance trade-off is described in detail. Extensive data are presented on the timing performance in γ-γ coincidence experiments.Keywords
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