Particle Orbits in Quadrupole-Duodecapole Halo Suppressor
文献类型：期刊论文
| 作者 | Li C(李超); Li, C; Xin, Q; Yuan, H; Lei, Y; Batygin, YK |
| 刊名 | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
 |
| 出版日期 | 2015 |
| 卷号 | 770页码:169-176 |
| 关键词 | Halo suppression Space charge Focusing channel TOPOPIC |
| 通讯作者 | 李超 |
| 英文摘要 | Dynamics of continuous space-charged-dominated beam propagating through a periodic quadrupole-duodecapole focusing channel is studied both numerically and analytically using test-particle-core model and Particle-In-Cell (PIC) simulation code TOPOPIC. The results of TOPOPIC indicate that with initially matched beam, utilization of quadrupole-duodecapole channel results in less beam emittance growth and fewer halo particles than that in a pure quadrupole channel. The Poincare section of plot obtained from the test-particle-core model is used to systematically determine the beam intensity dependent resonant dominated behavior of the test-particles, which reveals the mechanism of the halo suppression in quadrupole-duodecapole channel. Results of study show that, for appropriate field strength, the nonlinear duodecapole force removes the resonant structures clue to space charge. Motions of particles, originally trapped in the nonlinear resonant island or chaos region related to space charge, turn out to be along regular tori and these particles have less probability to get into beam halos. (C) 2014 Elsevier B.V. All rights reserved. |
| 学科主题 | Instruments & Instrumentation; Nuclear Science & Technology; Physics; Spectroscopy |
| 类目[WOS] | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics, Particles & Fields ; Spectroscopy |
| 收录类别 | SCI ; EI ; CA |
| WOS记录号 | WOS:000345855200023 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228152]  |
| 专题 | 高能物理研究所_加速器中心 |
| 推荐引用方式 GB/T 7714 | Li C,Li, C,Xin, Q,et al. Particle Orbits in Quadrupole-Duodecapole Halo Suppressor[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2015,770:169-176. |
| APA | 李超,Li, C,Xin, Q,Yuan, H,Lei, Y,&Batygin, YK.(2015).Particle Orbits in Quadrupole-Duodecapole Halo Suppressor.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,770,169-176. |
| MLA | 李超,et al."Particle Orbits in Quadrupole-Duodecapole Halo Suppressor".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 770(2015):169-176. |
入库方式： OAI收割
来源：高能物理研究所
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