Control of Beam Halo-Chaos Based on Self-Field-Intensity of Particle Beam
YU Hai-Jun1, BAI Long2, WENG Jia-Qiang3, LUO Xiao-Shu3
1Department of Physics, Huainan Normal University, Huainan 2320012College of Science, China University of Mining and Technology, Xuzhou 2210083College of Physics and Information Technology, Guangxi Normal University, Guilin 541004
Control of Beam Halo-Chaos Based on Self-Field-Intensity of Particle Beam
1Department of Physics, Huainan Normal University, Huainan 2320012College of Science, China University of Mining and Technology, Xuzhou 2210083College of Physics and Information Technology, Guangxi Normal University, Guilin 541004
摘要The KV beam through an axisymmetric periodic-focusing magnetic field is studied using the particle-core model. A new variable of the self-field-intensity of particle beam is selected, and an idea of self-field feedback controller is proposed based on the variable for controlling the halo-chaos. We perform multiparticle simulation to control the halo by using the self-field feedback controller. The numerical results show that the halo-chaos and its regeneration can be eliminated effectively, and that the density uniformity can be found at the centre of beam as long as an appropriate control method is chosen. The control method may be operated in the experiment, because field intensity measurement is easy.
Abstract：The KV beam through an axisymmetric periodic-focusing magnetic field is studied using the particle-core model. A new variable of the self-field-intensity of particle beam is selected, and an idea of self-field feedback controller is proposed based on the variable for controlling the halo-chaos. We perform multiparticle simulation to control the halo by using the self-field feedback controller. The numerical results show that the halo-chaos and its regeneration can be eliminated effectively, and that the density uniformity can be found at the centre of beam as long as an appropriate control method is chosen. The control method may be operated in the experiment, because field intensity measurement is easy.
YU Hai-Jun;BAI Long;WENG Jia-Qiang;LUO Xiao-Shu. Control of Beam Halo-Chaos Based on Self-Field-Intensity of Particle Beam[J]. 中国物理快报, 2008, 25(3): 862-865.
YU Hai-Jun, BAI Long, WENG Jia-Qiang, LUO Xiao-Shu. Control of Beam Halo-Chaos Based on Self-Field-Intensity of Particle Beam. Chin. Phys. Lett., 2008, 25(3): 862-865.
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2008, Vol. 25 
