| Paper |
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| THPAB090 |
Progress with the Diamond-II Storage Ring Lattice |
3973 |
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- H. Ghasem, I.P.S. Martin, B. Singh
DLS, Oxfordshire, United Kingdom
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Building on the CDR proposal for the Diamond-II storage ring, a number of changes have been implemented to improve the performance of the lattice. Firstly, anti-bend magnets have been utilized to provide additional control over the dispersion function, and an improved symmetrization in the phase advance between the sextupoles was found to be beneficial for the dynamic aperture. Furthermore, the longitudinal variable bends have been tailored to reduce the emittance and have had transverse gradient added to improve the optics control in the mid-straights. In the absence of IDs, the current design provides 161 pm electron beam emittance, reducing to 139 pm once all effects are taken into account. The dynamic aperture is large enough to support an off-axis injection scheme using a nonlinear kicker and has a lifetime greater than 4 h. In this paper, the main parameters and magnet specifications for the Diamond-II lattice are provided. The related linear and non-linear beam dynamics issues are discussed, along with the impact of IDs.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB090
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| About • |
paper received ※ 19 May 2021 paper accepted ※ 17 June 2021 issue date ※ 26 August 2021 |
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