| Paper |
Title |
Page |
| WEPAB026 |
Optics Measurements and Correction Plans for the HL-LHC |
2656 |
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- T.H.B. Persson, X. Buffat, F.S. Carlier, R. De Maria, J. Dilly, E. Fol, D. Gamba, H. Garcia Morales, A. García-Tabarés Valdivieso, M. Giovannozzi, M. Hofer, E.J. Høydalsvik, J. Keintzel, M. Le Garrec, E.H. Maclean, L. Malina, P.K. Skowroński, F. Soubelet, R. Tomás García, F.F. Van der Veken, A. Wegscheider, D.W. Wolf, L. van Riesen-Haupt
CERN, Meyrin, Switzerland
- J.M. Coello de Portugal
PSI, Villigen PSI, Switzerland
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The High Luminosity LHC (HL-LHC) will require stringent optics correction to operate safely and deliver the design luminosity to the experiments. In order to achieve this, several new methods for optics correction have been developed. In this article, we outline some of these methods and we describe the envisioned strategy of how to use them in order to reach the challenging requirements of the HL-LHC physics program.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB026
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| About • |
paper received ※ 17 May 2021 paper accepted ※ 27 July 2021 issue date ※ 30 August 2021 |
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| WEPAB027 |
Optics Correction Strategy for Run 3 of the LHC |
2660 |
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- T.H.B. Persson, R. De Maria, J. Dilly, E. Fol, H. Garcia Morales, M. Hofer, E.J. Høydalsvik, J. Keintzel, M. Le Garrec, E.H. Maclean, L. Malina, F. Soubelet, R. Tomás García, A. Wegscheider, D.W. Wolf, L. van Riesen-Haupt
CERN, Meyrin, Switzerland
- J.F. Cardona
UNAL, Bogota D.C, Colombia
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The Run 3 of the LHC will continue to provide new challenges for optics corrections. In order to succeed and go beyond what was achieved previously, several new methods to measure and correct the optics have been developed. In this article we describe these methods and outline the plans for the optics commissioning in 2022.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB027
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| About • |
paper received ※ 17 May 2021 paper accepted ※ 12 July 2021 issue date ※ 11 August 2021 |
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| THPAB001 |
Reaching the Sub Per Mil Level Coupling Corrections in the LHC |
3752 |
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- E.J. Høydalsvik, T.H.B. Persson
CERN, Geneva, Switzerland
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The High Luminosity LHC (HL-LHC) is requiring sub per mil coupling correction, as defined by the closest tune approach. In this article, the current coupling correction strategy is analyzed in order to understand if it can robustly correct to these very low levels. The impact of realistic errors on the coupling correction is investigated with MAD-X simulations, including the influence of local coupling on the global coupling correction. Through simulations and measurements in the LHC, the effect of BPM noise on the coupling correction is analyzed.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB001
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| About • |
paper received ※ 11 May 2021 paper accepted ※ 28 July 2021 issue date ※ 23 August 2021 |
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