BEPCII直线注入器的尾场效应(英文)

Wakefield Effects on the BEPCII Injector Linac

BEPCII直线注入器中的强流、短束团的尾场效应将损害束流的性能 .用分析解和数值模拟计算的方法 ,系统地研究了尾场对纵向和径向束流动力学的影响 ,包括单束团的短程尾场和多束团的长程尾场对束流能量、能散、发射度、轨道和初级电子束在正电子产生靶上束斑尺寸的影响等 .

The high current and short bunch of the electron beam in the BEPCII injector linac cause the wakefield effects on the beam performance dilution. These wakefield effects on longitudinal and transverse beam dynamics are systematically studied with analysis and numerical beam modeling, including the single bunch short-range wake effects and the multi-bunch long-range wake effects on beam energy, energy spread, emittance, orbit offset and primary electron beam spot size on the positron production target. The measures to effectively cure these wake effects are also studied.