A New Scintillation Signal Former

The result of the addition of an exponentially shaped pulse (sharp leading edge, exponential trailing edge) to a pulse proportional to its integral (the integration time constant is equal to that of the exponential trailing edge) is a pulse whose top is horizontal (in parallel to a base line). This pulse is suitable for recording with the use of commercial serial binary-approach analog-to-digital converters. The described circuit is designed for checking the basic principle of operation of the former. The parameters of the circuits are brought closer to those necessary for processing the scintillation signals of NaI (Tl).