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Title: An ultimate storage ring lattice with vertical emittance generated by damping wigglers

Abstract

We discuss the approach of generating round beams for ultimate storage rings using vertical damping wigglers (with horizontal magnetic field). The vertical damping wigglers provide damping and excite vertical emittance. This eliminates the need to generate large linear coupling that is impractical with traditional off-axis injection. We use a PEP-X compatible lattice to demonstrate the approach. This lattice uses separate quadrupole and sextupole magnets with realistic gradient strengths. Intrabeam scattering effects are calculated. As a result, the horizontal and vertical emittances are 22.3 pm and 10.3 pm, respectively, for a 200 mA, 4.5 GeV beam, with a vertical damping wiggler of a total length of 90 m, a peak field of 1.5 T and a wiggler period of 100 mm.

Authors:
 [1]
  1. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
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:
1171468
Report Number(s):
SLAC-PUB-16121
Journal ID: ISSN 0168-9002; arXiv:1409.7452
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment; Journal Volume: 777; Journal Issue: C
Country of Publication:
United States
Language:
English
Subject:
ultimate storage ring; vertical emittance; damping wiggler

Citation Formats

Huang, Xiaobiao. An ultimate storage ring lattice with vertical emittance generated by damping wigglers. United States: N. p., 2015. Web. doi:10.1016/j.nima.2014.12.097.
Huang, Xiaobiao. An ultimate storage ring lattice with vertical emittance generated by damping wigglers. United States. doi:10.1016/j.nima.2014.12.097.
Huang, Xiaobiao. Tue . "An ultimate storage ring lattice with vertical emittance generated by damping wigglers". United States. doi:10.1016/j.nima.2014.12.097. https://www.osti.gov/servlets/purl/1171468.
@article{osti_1171468,
title = {An ultimate storage ring lattice with vertical emittance generated by damping wigglers},
author = {Huang, Xiaobiao},
abstractNote = {We discuss the approach of generating round beams for ultimate storage rings using vertical damping wigglers (with horizontal magnetic field). The vertical damping wigglers provide damping and excite vertical emittance. This eliminates the need to generate large linear coupling that is impractical with traditional off-axis injection. We use a PEP-X compatible lattice to demonstrate the approach. This lattice uses separate quadrupole and sextupole magnets with realistic gradient strengths. Intrabeam scattering effects are calculated. As a result, the horizontal and vertical emittances are 22.3 pm and 10.3 pm, respectively, for a 200 mA, 4.5 GeV beam, with a vertical damping wiggler of a total length of 90 m, a peak field of 1.5 T and a wiggler period of 100 mm.},
doi = {10.1016/j.nima.2014.12.097},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 777,
place = {United States},
year = {Tue Jan 06 00:00:00 EST 2015},
month = {Tue Jan 06 00:00:00 EST 2015}
}