Title :
Emittance growth caused by bunched beam with nonuniform distributions in both longitudinal and transverse directions in linac
Author :
Huang, Zhibin ; Chen, Yinbao ; Fu, Shinian
Author_Institution :
China Inst. of Atomic Energy, Beijing, China
Abstract :
The nonlinear space charge effect of a bunched beam in a linac is one of the important factors that induces the emittance growth due to the conversion of the field energy to kinetic energy. In this paper, using a cylinder model of space charge in the linac, we derived the internal energy for a bunched beam with some nonuniform space charge distributions, such as Gaussian, waterbag and parabolic distributions in both longitudinal and transverse directions. The emittance growth caused by these nonuniformities is worked out
Keywords :
Gaussian distribution; beam handling techniques; linear accelerators; space charge; Gaussian distribution; bunched beam; cylinder model; emittance growth; internal energy; linac; longitudinal direction; nonlinear space charge effect; nonuniform distributions; parabolic distribution; transverse direction; waterbag distribution; Electron beams; Free electron lasers; Kinetic energy; Laser beams; Laser fusion; Laser theory; Linear particle accelerator; Masers; Particle beams; Space charge;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505877
