Shaoqing Wei, Zhan Zhang, Sangjin Lee, Do Gyun Kim, Jang Youl Kim
언어
영어(ENG)
URL
https://www.earticle.net/Article/A293617
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원문정보
초록
영어
Beam trajectory is needed to be controlled in heavy ion accelerator system. Quadruple magnets are widely used in heavy ion accelerator for focusing the transporting particles. A quadruple triplet system which consists of three consecutive quadrupoles, Q1, Q2 and Q3, is used to control beam trajectory at a focused position. Q1 and Q3 have symmetry with respect to Q2. The beam trajectory in magnet system is affected by higher order fields existed in real fields. For quadrupoles, the representation simulation of beam trajectory was carried out to study the beam trajectory and to estimate an effect of higher order field in triplet system. SCALA program was used to simulate the beam trajectory in OperaTM. SCALA can analyze a large number of beam trajectories at the same time by adjusting the size of finite element of the emitter. With OperaTM and MatlabTM programs, the position of focused beam spot in quadruple triplet system can be increased or decreased using evolution strategy (ES) method, therefore the length of triplet system can be controlled. Finally, the quadruple triplet system with the appropriate length and expected beam spot range was suggested in this paper.
목차
Abstract 1. INTRODUCTION 2. BEAM ANALYSIS 2.1. Triplet system 2.2. Beam trajectory of the triplet system 3. THE FOCUSED LENGTH CONTROLLING 3.1 Decrease the length of beam trajectory 3.2 Increase the length of beam trajectory CONCLUSION ACKNOWLEDGMENT REFERENCES
키워드
Beam trajectoryBeam spotEvolution strategyHeavy ion acceleratorThe length of quadruple triplet
저자
Shaoqing Wei [ Uiduk University, Gyeongju, Korea ]
Zhan Zhang [ Uiduk University, Gyeongju, Korea ]
Sangjin Lee [ Uiduk University, Gyeongju, Korea ]
Corresponding author
Do Gyun Kim [ Rare Isotope Science Project, Institute for Basic Science, Korea ]
Jang Youl Kim [ Rare Isotope Science Project, Institute for Basic Science, Korea ]