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Title: Off-axis injection for storage rings with full coupling

Abstract

The next generation of storage ring light sources will likely operate with high linear coupling, which could potentially prevent the use of off-axis injection as large horizontal oscillation of the injected beam is coupled to the vertical plane. We did experiments on the SPEAR3 storage ring to study how linear coupling impact the dynamic aperture and the off-axis injection efficiency. The results show that the dynamic aperture is significantly reduced and injection efficiency can drop to zero when operated on the coupling resonance. However, with large nonlinear detuning, the dynamic aperture and high injection efficiency can survive with the stored beam at full coupling because the injected beam is shifted away from the coupling resonance. Particle tracking simulation is also conducted to demonstrate the injected beam behavior in a nonlinear lattice with high coupling.

Authors:
;
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1467145
Alternate Identifier(s):
OSTI ID: 1475431
Grant/Contract Number:  
[AC02-76SF00515]
Resource Type:
Published Article
Journal Name:
Physical Review Accelerators and Beams
Additional Journal Information:
[Journal Name: Physical Review Accelerators and Beams Journal Volume: 21 Journal Issue: 8]; Journal ID: ISSN 2469-9888
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Zhang, Tong, and Huang, Xiaobiao. Off-axis injection for storage rings with full coupling. United States: N. p., 2018. Web. doi:10.1103/PhysRevAccelBeams.21.084002.
Zhang, Tong, & Huang, Xiaobiao. Off-axis injection for storage rings with full coupling. United States. doi:10.1103/PhysRevAccelBeams.21.084002.
Zhang, Tong, and Huang, Xiaobiao. Tue . "Off-axis injection for storage rings with full coupling". United States. doi:10.1103/PhysRevAccelBeams.21.084002.
@article{osti_1467145,
title = {Off-axis injection for storage rings with full coupling},
author = {Zhang, Tong and Huang, Xiaobiao},
abstractNote = {The next generation of storage ring light sources will likely operate with high linear coupling, which could potentially prevent the use of off-axis injection as large horizontal oscillation of the injected beam is coupled to the vertical plane. We did experiments on the SPEAR3 storage ring to study how linear coupling impact the dynamic aperture and the off-axis injection efficiency. The results show that the dynamic aperture is significantly reduced and injection efficiency can drop to zero when operated on the coupling resonance. However, with large nonlinear detuning, the dynamic aperture and high injection efficiency can survive with the stored beam at full coupling because the injected beam is shifted away from the coupling resonance. Particle tracking simulation is also conducted to demonstrate the injected beam behavior in a nonlinear lattice with high coupling.},
doi = {10.1103/PhysRevAccelBeams.21.084002},
journal = {Physical Review Accelerators and Beams},
number = [8],
volume = [21],
place = {United States},
year = {2018},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevAccelBeams.21.084002

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Cited by: 1 work
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Works referenced in this record:

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