Influence of trigger pulse on pulse generator based on avalanche transistor

As for pulse generators based on gas-switch and SOS-switch, the output of the avalanche transistor pulse is relatively low. To increase its output, the method of power-combining is used. The key point is that the pulse-generator-units must have high stability and time-coherence. The reason why the trigger pulse affects the pulse-generator based on avalanche transistor is analyzed in the paper. And the key influence factors, which are the slope of the trigger pulse, the difference of avalanche transistors and the noise of circuits, are found out. In experiment, the jitter of the pulse-generator and the time-coherence between units are less than 20 ps through increasing the extent and slope of the trigger pulse.