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Alignment & stability challenges for FCC-ee
/ Charles, Tessa K (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech. ; Manchester U.) ; Holzer, Bernhard (CERN) ; Tomas, Rogelio (CERN) ; Oide, Katsunobu (CERN ; KEK, Tsukuba) ; van Riesen-Haupt, Léon (Ecole Polytechnique, Lausanne) ; Zimmermann, Frank (CERN)
In order to achieve its ultra-low vertical emittance (1 pm) and high luminosity (of up to 230 \times 10^{34}\text{ cm}^{-2}\text{ s}^{-1} per collision point), the e$^{+}$e$^{−}$ Future Circular Collider (FCC-ee) requires a well-informed alignment strategy, powerful correction methods, and good understanding of the impact of vibrations. The large ring size, high natural chromaticity, small \beta ^{*}, and the low coupling ratio make the FCC-ee design susceptible to misalignment and field errors, which if not properly addressed, threaten to increase the horizontal and vertical emittances and adversely affect the luminosity. [...]
2023 - 19 p.
- Published in : EPJ Tech. Instrum. 10 (2023) 8
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The Development of Energy-Recovery Linacs
/ Adolphsen, Chris (SLAC) ; Andre, Kevin (CERN ; Liverpool U.) ; Angal-Kalinin, Deepa (Daresbury) ; Arnold, Michaela (Darmstadt, Tech. Hochsch.) ; Aulenbacher, Kurt (Helmholtz Inst., Mainz) ; Benson, Steve (Jefferson Lab) ; Bernauer, Jan (SUNY, Stony Brook) ; Bogacz, Alex (Jefferson Lab) ; Boonekamp, Maarten (Saclay) ; Brinkmann, Reinhard (DESY) et al.
Energy-recovery linacs (ERLs) have been emphasised by the recent (2020) update of the European Strategy for Particle Physics as one of the most promising technologies for the accelerator base of future high-energy physics. [...]
arXiv:2207.02095 ; FERMILAB-PUB-22-509-AD ; JLAB-ACP-22-3666.
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237 p.
Fermilab Library Server - JLab Document Server - Fulltext - Fulltext
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Accelerator Challenges of the LHeC Project
/ Holzer, Bernhard (CERN) ; André, Kévin (CERN) ; Bogacz, Alex (Jefferson Lab) ; Brüning, Oliver (CERN) ; Klein, Max (Liverpool U.)
The LHeC project studies the design of a future electron-proton collider at CERN that will run in parallel to the standard LHC operation. For this purpose, the existing LHC storage ring will be combined with an Energy Recovery Linac (ERL), to accelerate electrons up to kinetic energy of 50 GeV. [...]
2021 - 4 p.
- Published in : 10.18429/JACoW-IPAC2021-WEPAB001
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, Br, 24 - 28 May 2021, pp.2570-2573
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Emittance Tuning for the Future Circular e+/eCollider (FCC-ee)
/ Charles, Tessa (CERN ; Melbourne U.) ; Holzer, Bernhard (CERN) ; Oide, Katsunobu (KEK, Tsukuba ; CERN) ; Zimmermann, Frank (CERN)
The Future Circular e+/e- Collider (FCC-ee) presents an appreciable challenge for emittance tuning due to the strong final focusing and chromaticity correction, required to achieve high luminosities in the order of 10$^{36}$cm$^{-2}$s$^{-1}$. The proposed 100 km e+/e circular collider, FCC-ee is being designed to undertake precision studies and rare decay observations in the range of 90 to 350 GeV center of mass energy, with luminosities ranging from 1.7x10$^{35}$cm$^{-2}$s$^{-1}$ to 230x10$^{35}$cm$^{-2}$s$^{-1}$. [...]
SISSA, 2020 - 8 p.
- Published in : PoS EPS-HEP2019 (2020) 018
Fulltext from publisher: PDF;
In : European Physical Society Conference on High Energy Physics (EPS-HEP) 2019, Ghent, Belgium, 10 - 17 Jul 2019, pp.018
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