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1.
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Selected advances in the accelerator design of the Future Circular Electron-Positron Collider (FCC-ee)
/ FCC Collaboration
In autumn 2023, the FCC Feasibility Study underwent a crucial “mid-term review”. We describe some accelerator performance risks for the proposed future circular electron-positron collider, FCC-ee, identified for, and during, the mid-term review. [...]
FERMILAB-CONF-24-0659-AD-PIP2.-
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) WEPR14
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEPR14
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2.
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Damping ring and transfer lines of FCC-𝑒+𝑒− injector complex
/ Spampinati, Simone (Frascati) ; De Santis, Antonio (Frascati) ; Dutheil, Yann (CERN) ; Etisken, Ozgur (Kirikkale U. ; Frascati) ; Ramjiawan, Rebecca (CERN) ; Milardi, Catia (Frascati)
The Future Circular Collider project is built around two main pillars: the construction of 100 km lepton collider running at increasing energies from the Z-pole to the t-tbar threshold (FCC-ee) followed by a hadron collider in the same tunnel (FCC-hh) to explore unprecedented energy frontier.The realization of FCC-ee relies on a very challenging injector complex that should provide the highest ever realized source of positrons, which will serve the first phase of the collider operations (Z-pole). In this contribution the relevant aspects related to the damping of the high-emittance beam coming from the positron source and the transport of the damped beam within the different LINAC of the injector complex are presented and discussed..
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) MOPA112
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPA112
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3.
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Collective Effects Estimates for the Damping Ring Design of the FCC-ee
/ Etisken, Ozgur (CERN) ; Antoniou, Fanouria (CERN) ; De Santis, Antonio (Frascati) ; Milardi, Catia (Frascati) ; Zimmermann, Frank (CERN)
The current injector complex design of the FCC-e⁺e⁻ project consists of e⁺/e⁻ linacs, which accelerate the beams up to 6 GeV, a damping ring at 1.54 GeV, a pre-booster ring, accelerating the beam up to 16 GeV and a booster synchrotron ring integrated in the collider tunnel accelerating the beams up to the collision energies. The purpose of the damping ring is to accept the 1.54 GeV beam coming from the linac-1, damp the positron/electron beams and provide the required beam characteristics for the injection into the linac-2. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2435-2438
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2435-2438
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4.
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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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5.
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FCC-ee Operation Model, Availability & Performance
/ Zimmermann, Frank (CERN) ; Apollonio, Andrea (CERN) ; Benedikt, Michael (CERN) ; Brunner, Olivier (CERN) ; Funakoshi, Yoshihiro (KEK, Tsukuba) ; Milardi, Catia (Frascati) ; Myers, Stephen (CERN) ; Niemi, Arto (Tampere U. of Tech.) ; Oide, Katsunobu (KEK, Tsukuba) ; Qin, Qing (Beijing, Inst. High Energy Phys.) et al.
This document discusses the machine parameters and expected luminosity performance for the proposed future circular lepton collider FCC-ee. Particular emphasis is put on availability, physics run time, and efficiency. [...]
JACOW, 2019 - 7 p.
- Published in : 10.18429/JACoW-eeFACT2018-WEPAB03
Fulltext: PDF;
In : 62nd ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e− Colliders, Hong Kong, China, 24 - 27 Sep 2018, pp.WEPAB03
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6.
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7.
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Local chromatic correction scheme and crab-waist collisions for an ultra-low beta* at the LHC
/ Abelleira, Jose Luis (Ecole Polytechnique, Lausanne ; CERN) ; Russenschuck, Stephan (CERN) ; Tomas, Rogelio (CERN) ; Zimmermann, Frank (CERN) ; Ohmi, Kazuhito (KEK, Tsukuba) ; Milardi, Catia (Frascati) ; Zobov, Mikhail (Frascati) ; Shatilov, Dmitry (Novosibirsk, IYF)
We discuss potential merits and the parameter range of interest for a possible crab-waist collision scheme at the LHC, and report preliminary optics studies of a local chromatic correction scheme with flat beams (β*x ≫ β*y ), which could boost the LHC luminosity by about an order of magnitude and would also allow for crab-waist collisions..
CERN-ATS-2012-075.-
Geneva : CERN, 2012 - 3 p.
- Published in : Conf. Proc.: C1205201 (2012) , pp. MOPPC002
Fulltext: PDF; External link: Published version from JaCoW
In : 3rd International Particle Accelerator Conference, New Orleans, LA, USA, 20 - 25 May 2012, pp.118
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8.
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Present status of the DAPHNE upgrade and perspectives
/ Milardi, Catia (LNF, Frascati ; INFN, Frascati) ; Alesini, D (LNF, Frascati ; INFN, Frascati) ; Biagini, M (LNF, Frascati ; INFN, Frascati) ; Biscari, C (LNF, Frascati ; INFN, Frascati) ; Boni, R (LNF, Frascati ; INFN, Frascati) ; Boscolo, M (LNF, Frascati ; INFN, Frascati) ; Bossi, F (LNF, Frascati ; INFN, Frascati) ; Buonomo, B (LNF, Frascati ; INFN, Frascati) ; Clozza, A (LNF, Frascati ; INFN, Frascati) ; Delle Monache, G (LNF, Frascati ; INFN, Frascati) et al.
The DAΦNE collider has been recently upgraded in order to implement a new collision scheme based on large Piwinski angle and cancellation of the synchro-betatron resonances by means of electromagnetic sextupoles (Crab-Waist compensation). The novel approach has proved to be effective in improving beam-beam interaction and collider luminosity. [...]
2009
- Published in : Int. J. Mod. Phys. A 24 (2009) 360-368
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9.
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10.
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DA$\Phi$NE Upgrade Status
/ Alesini, David ; Arnaud, Nicolas ; Bettoni, Simona ; Biagini, Maria Enrica ; Biscari, Caterina ; Boni, Roberto ; Boscolo, Manuela ; Bossi, Fabio ; Branchini, Paolo ; Breton, Dominique et al.
2008
- Published in : Nucl. Phys. B, Proc. Suppl. 181-182 (2008) 385-389
In : 5th International Workshop on $e^{+}e^{-}$ Collisions from \Phi \to \Psi, Frascati, Italy, 07 - 10 Apr 2008, pp.385-389
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