Shape analysis of fast pulses out of a broad pulse height spectrum

The shape analysis of fast pulses with a definite pulse height out of a broad pulse height spectrum is performed using a sampling oscilloscope triggered by a window discriminator and subsequent digitizing and summing up of the oscilloscope output in a multichannel analyzer operated in the multiscaling mode. The evaluation of single sweeps yields the variations of the pulse shape, while when averaging many sweeps finer details of the pulse shape can be examined. The technique is applied in a study of pulses from different sources, viz. multipliers, channel plates and surface barrier detectors.