Nuclear pulse shaped circuit base in Sallen-Key low pass filter

Sallen-Key filter was used in shaping of nuclear pulses and,with few stages of filters it was possible to reach the Gaussian waveform output.The characteristics of the shaped circuit base in Sallen-Key low pass filter were simulated and the optimal parameters of this filter were given.This circuit was designed and realized by using a broad-band op-amplifier and the experiment testified the advantage of the circuit.