Abstract :
A review of fast coincidence circuits, working in the millimicrosecond region, is presented. The main points covered are: 1) operating characteristics of the various types of coincidence circuits, 2) description of the various circuits, 3) differential coincidence method, 4) analysis of coincidence curves and the determination of time delays, 5) the resolving time, 6) effect of random time lags on coincidence curves, 7) experimental investigation of random time lags, 8) coincidence efficiency, and 9) statistical accuracy of time measurements.
