摘要
The K-V beam through a hackle periodic-focusing magnetic field is studied using the particle-core model. The beam halo-chaos is found, and a power function controller is proposed based on mechanism of halo formation and strategy of controlling halo-chaos. Multiparticle simulation was performed to control the halo by using the power function control method. The results show that the halo-chaos and its regeneration can be eliminated effectively. We also find that the radial particle density evolvement is of uniformity at the beam’s centre as long as appropriate parameters are chosen.
The K-V beam through a hackle periodic-focusing magnetic field is studied using the particle-core model. The beam halo-chaos is found, and a power function controller is proposed based on mechanism of halo formation and strategy of controlling halo-chaos. Multiparticle simulation was performed to control the halo by using the power function control method. The results show that the halo-chaos and its regeneration can be eliminated effectively. We also find that the radial particle density evolvement is of uniformity at the beam＇s centre as long as appropriate parameters are chosen.
基金
Supported by the National Natural Science Foundation of China (Grant No. 10247005)
the Natural Science Foundation of the Anhui Higher Education Bureau (Grant No. KJ2007B187)
the Scientific Research Foundation of China University of Mining and Technology for the Young (Grant No. OK060119).
关键词
束晕混沌状态
周期性聚焦磁场
幂函数
核技术
Beam halo-chaos, Hackle periodic-focusing magnetic field, Power function
