| Abstract: | We present the analytical and simulated results of our study of the influence of the acceleration gradient in the velocity bunching process,which is a bunch compression scheme that uses a travelling wave accelerating structure as a compressor.Our study shows that the bunch compression application with low acceleration gradient is more tolerant to phase jitter and more successful in obtaining a compressed electron beam with symmetrical longitudinal distribution and low energy spread.We also present a transverse emittance compensation scheme to compensate the emittance growth caused by the increase of the space charge force in the compressing process,which is easy to adjust for different compression factors. |
