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Design of a Collimation Section for the FCC-ee
/ Hofer, Michael (CERN) ; Abramov, Andrey (CERN) ; Bruce, Roderik (CERN) ; Moudgalya, Maitreyee (Ecole Polytechnique, Lausanne) ; Oide, Katsunobu (CERN) ; Pieloni, Tatiana (Ecole Polytechnique, Lausanne) ; Zimmermann, Frank (CERN)
The design parameters of the FCC-ee foresee operation with a total stored beam energy of about 20 MJ, exceeding those of previous lepton colliders by almost two orders of magnitude. Given the inherent damage potential, a halo collimation system is studied to protect the machine hardware, in particular superconducting equipment such as the final focus quadrupoles, from sudden beam loss. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 1722-1725
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1722-1725
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2.
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FCC-ee Lattice Design
/ Keintzel, Jacqueline (CERN) ; Abramov, Andrey (CERN) ; Benedikt, Michael (CERN) ; Hofer, Michael (CERN) ; Hunchak, Patrick (Saskatchewan U.) ; Oide, Katsunobu (CERN) ; Raubenheimer, Tor (SLAC) ; Tomás García, Rogelio (CERN) ; Zimmermann, Frank (CERN)
Within the framework of the Future Circular Collider Feasibility and Design Study, the design of the electron-positron collider FCC-ee is being optimised, as a possible future double collider ring, currently foreseen to start operation during the 2040s. FCC-ee is designed to operate at four different energy stages, allowing for precision measurements: from the Z-pole up to above the ttbar-threshold. [...]
2023 - 9 p.
- Published in : JACoW eeFACT 2022 (2023) 52-60
Fulltext: PDF;
In : 65th ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+ e- Colliders (eeFACT2022), INFN, Frascati, Italy, 12 - 16 Sep 2022, pp.52-60
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4.
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Development of Collimation Simulations for the FCC-ee
/ Abramov, Andrey (CERN) ; Bruce, Roderik (CERN) ; Carlier, Felix (Ecole Polytechnique, Lausanne) ; Hofer, Michael (CERN) ; Iadarola, Giovanni (CERN) ; Nevay, Laurence (JAI, UK) ; Pieloni, Tatiana (Ecole Polytechnique, Lausanne) ; Rakic, Milica (Ecole Polytechnique, Lausanne) ; Redaelli, Stefano (CERN) ; White, Simon (ESRF, Grenoble)
A collimation system is under study for the FCC-ee to protect the machine from the multi-MJ electron and positron beams and limit the backgrounds to the detectors. One of the key aspects of the collimation system design is the setup of simulation studies combining particle tracking and scattering in the collimators. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 1718-1721
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1718-1721
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Updated High-Energy LHC design
/ Zimmermann, Frank (CERN) ; Abelleira, Jose Luis (JAI, UK) ; Abramov, Andrey (JAI, UK ; Royal Holloway, U. of London) ; Amorim, David (CERN) ; Antipov, Sergey (CERN) ; Apyan, Armen (Yerevan Phys. Inst.) ; Arsenyev, Sergey (CERN) ; Barranco, Javier (Ecole Polytechnique, Lausanne) ; Benedikt, Michael (CERN) ; Bruce, Roderik (CERN) et al.
We present updated design parameters for a future High-Energy LHC. A more realistic turnaround time has led to a revision of the target peak luminosity, as well as a choice of a larger IP beta function, and longer physics fills. [...]
CERN-ACC-2019-089.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-MOPMP037
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPMP037
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The Electron-Positron Future Circular Collider (FCC-ee)
/ Zimmermann, Frank (CERN) ; Benedikt, Michael (CERN) ; Oide, Katsunobu (Geneva U. ; KEK, Tsukuba) ; Raubenheimer, Tor (SLAC)
The Future Circular electron-positron Collider (FCC-ee) is aimed at studying the Z and W bosons, the Higgs, and top quark with extremely high luminosity and good energy efficiency. Responding to a request from the 2020 Update of the European Strategy for Particle Physics, in 2021 the CERN Council has launched the FCC Feasibility Study to examine the detailed implementation of such a collider. [...]
2022 - 6 p.
- Published in : JACoW NAPAC 2022 (2022) 315-320
Fulltext: PDF;
In : 4th North American Particle Accelerator Conference (NAPAC 2022), Albuquerque, NM, United States, 7-12 Aug 2022, pp.TUZD1
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The FCCee Pre-Injector Complex
/ Craievich, Paolo (PSI, Villigen) ; Alharthi, Fahad (IJCLab, Orsay) ; Auchmann, Bernhard (PSI, Villigen) ; Bartmann, Wolfgang (CERN) ; Benedikt, Michael (CERN) ; Besana, Maria Ilaria (CERN) ; Bettoni, Simona (PSI, Villigen) ; Braun, Hans-Heinrich (PSI, Villigen) ; Calviani, Marco (CERN) ; Chaikovska, Iryna (IJCLab, Orsay) et al.
The international FCC study group published in 2019 a Conceptual Design Report for an electron-positron collider with a centre-of-mass energy from 90 to 365 GeV with a beam currents of up to 1.4 A per beam. The high beam current of this collider create challenging requirements on the injection chain and all aspects of the linac need to be carefully reconsidered and revisited, including the injection time structure. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2007-2010
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2007-2010
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8.
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Estimates of Collective Effects for the FCC-$e^+e^-$ Pre-Booster Ring
/ Etisken, Ozgur (CERN) ; Antoniou, Fanouria (CERN) ; Çiftçi, Abbas Kenan (Izmir U. Economics, Izmir) ; Oide, Katsunobu (CERN ; KEK, Tsukuba) ; Papaphilippou, Yannis (CERN) ; Zimmermann, Frank (CERN)
The FCC-e⁺e⁻ injector complex needs to produce and to transport high-intensity e⁺ and e⁻ beams at a fast repetition rate for topping up the collider at its collision energy. Two different options are under consideration as pre-accelerator before the bunches are transferred to the high-energy booster: either using the existing SPS machine or designing a completely new ring. [...]
JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 148-151
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.148-151
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Challenges for the interaction region design of the Future Circular Collider FCC-ee
/ Boscolo, Manuela (LNF, Dafne Light) ; Bacchetta, Nicola (INFN, Italy) ; Benedikt, Michael (CERN) ; Brunetti, Laurent (Annecy, LAPP) ; Burkhardt, Helmut (CERN) ; Ciarma, Andrea (LNF, Dafne Light) ; Dam, Mogens (Bohr Inst.) ; Fransesini, Francesco (LNF, Dafne Light) ; Jones, Mark (CERN) ; Kersevan, Roberto (CERN) et al.
The FCC-ee is a proposed future high-energy, high-intensity and high-precision lepton collider. Here, we present the latest development for the FCC-ee interaction regions, which shall ensure optimum conditions for the particle physics experiments. [...]
arXiv:2105.09698; WEPAB029.-
2021-08-10 - 4 p.
- Published in : 10.18429/JACoW-IPAC2021-WEPAB029
Fulltext: 2105.09698 - PDF; document - PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.WEPAB029
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