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Betatron coupling correction at the IUCF cooler, leading to improved determination of fourth‐order resonance Hamiltonian

 

作者: M. Ellison,   M. Ball,   B. Brabson,   J. Budnick,   D. D. Caussyn,   J. Collins,   S. Curtis,   V. Derenchuk,   G. East,   T. Ellison,   D. Friesel,   B. Hamilton,   H. Huang,   W. P. Jones,   W. Lamble,   S. Y. Lee,   D. Li,   S. Nagaitsev,   X. Pei,   G. Rondeau,   T. Sloan,   A. W. Chao,   S. Dutt,   M. Syphers,   Y. Yan,   M. G. Minty,   S. Tepikian,   K. Y. Ng,   W. Gabella,  

 

期刊: AIP Conference Proceedings  （AIP Available online 1992）
卷期: Volume 292, issue 1  

页码: 170-176

 

ISSN:0094-243X

 

年代: 1992

 

DOI:10.1063/1.45129

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Recently the Hamiltonian of particle motion near a resonance condition was deduced at the Indiana University Cyclotron Facility Cooler Ring. It was found that linear betatron coupling complicated the analysis. A coupling correction scheme is described which reduced the coupling coefficient from 0.03 to 0.0012. When particles were kicked onto resonance islands with the coupling reduced, the island motion was stable for upwards of 1×106turns. This stable island motion allowed for the determination of higher‐order terms in the Hamiltonian.

 

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