The experimental results show that the increase of the centroid transverse displacement in the beam-pulse flattop duration is confined and the bigger energy-sweep beams are partially rejected in the alternate focusing solenoid field.

• 实验结果表明,采用交变极性聚焦场聚焦,抑制了束脉冲顶部质心横向运动的发展,同时可剔除束脉冲前后沿能散度较大的那部分束。