Synchronization of full-solid high-stability nanosecond pulse sources
The stability of a cell pulse source is a key index in multi-source's synchronization.The stability index of pulse source is defined in this article.Potential advantage of full-solid nanosecond pulse sources for synchronizing is remarked,because of its high stability.Mechanisms of pulser's time drift and wave flutter are analyzed,and the key technology routes are given,including over triggering and deficit charging,to improve the cell pulser's stability.And the stability indexes reach as follows: the short time jitter less than 20 ps per times,the long time drift less than 100 ps/min,the pulse width jitter less than 1%,and the peak voltage jitter less than 1%.Finally,integrating both circuit and space synchronizations,synchronizations of 16×16 elements are realized,and a 30 MW full-solid high-stability synchronization-synthesis pulser is finished,which time base differences of all 16 channels are less than 30 ps,sum peak voltages jitter less than 1%,and the whole synthesis efficiency reaches 90% to 95%.