| Paper |
Title |
Page |
| WEPAB279 |
On Wire-Corrector Optimization in the HL-LHC and the Appearance of Special Aspect Ratios |
3297 |
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- D. Kaltchev
TRIUMF, Vancouver, Canada
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For the two high-luminosity insertions of the Large Hadron Collider (HL-LHC) current bearing wire correctors are intended to mitigate the detrimental effect of long-range beam-beam interactions. With respect to finding the optimum longitudinal location of the wire, two special locations corresponding to the special values 2 and 1/2 of the beta-function aspect ratio have been previously shown to provide simultaneous cancellation of multiple two-dimensional Resonance Driving Terms. This paper attempts to explain the appearance of such special aspect ratios.
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Poster WEPAB279 [1.238 MB]
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB279
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| About • |
paper received ※ 14 May 2021 paper accepted ※ 19 July 2021 issue date ※ 13 August 2021 |
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| Export • |
reference for this paper using
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| WEPAB280 |
Two-Dimensional Beam-Beam Invariant with Applications to HL-LHC |
3301 |
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- D. Kaltchev
TRIUMF, Vancouver, Canada
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Long-range beam-beam interactions represent the most severe limitation on the performance and achievable luminosity of circular collider. The paper presents a two-dimensional nonlinear Courant Snyder Invariant derived to first order in the beam-beam perturbation and based on the two-dimensional coefficients in the Fourier expansion of the Beam-beam Hamiltonian. Its validity in case of HL-LHC lattices with realistic beam-beam setup is verified with MadX tracking.
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Poster WEPAB280 [1.235 MB]
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB280
|
|
| About • |
paper received ※ 14 May 2021 paper accepted ※ 06 July 2021 issue date ※ 12 August 2021 |
|
| Export • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
| |