Ｏptimization design of the main switch in 12MeV linear induction accelerator

A method for optimization design of the main switch (using in 12MeV linear induction accelerator) was introduced. The switch's inductance was decreased from 63.7nH to 35nH by optimizing the configuration of the main switch and the size of the electric poles so that the accelerating cavity can get a better rising time of 27ns. The accelerator's performance can be effectively improved through this method, the feasibility of the method is also proved by testing．