Statistical Method for Pulse Shape Analysis
and its Nuclear Spectroscopy Application

V.B. Brudanin, V.A. Morozov, N.V. Morozova

Joint Institute for Nuclear Research, Dubna, Russia

A method for analyzing the shape of pulses in the nano- and microsecond range on the basis of the delayed coincidence method is described. With the time analyzer channel graduated to a picosecond, statistical gating of pulses with a standard 4096-channel ADC and a PC is shown to be possible. In the investigation of decay schemes of radioactive nuclei, this method allows transitions populating and de-exciting the short-lived state of the nucleus to be established if the half-life of this state is comparable with the duration of the pulse supplied for the energy analysis.