CERN Accelerating science

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1.
Tools for Flexible Optimisation of IR Designs with Application to FCC / Burkhardt, Helmut (CERN) ; Boscolo, Manuela (Frascati)
The interaction regions of future high-luminosity colliders require well balanced designs, which provide both for a very high luminosity and at the same time keep backgrounds and radiation at tolerable levels. We describe a set of flexible tools, targeted at providing a first evaluation of losses in the interaction region as part of the design studies, and their application to FCC..
CERN-ACC-2015-279.- 2015 - 3 p. - Published in : (2015) , pp. TUPTY031 Published version from JACoW: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.TUPTY031
2.
Tracking Simulation for Beam Loss Studies with Application to FCC / Boscolo, M (Frascati) ; Burkhardt, H (CERN)
We present first results on FCC-ee beam losses using a tracking simulation tool originally developed and successfully applied to Flav or Factories designs. After a brief description of the tool, we discuss first results obtained for FCC-ee at top energy, both for the Touschek effect and radiative Bhabha scattering..
IPAC-2015-TUPY004; CERN-ACC-2015-358.- 2015 - 3 p. - Published in : (2015) , pp. TUPTY004 Published version from JACoW: PDF; External links: Fulltext; JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.TUPTY004
3.
Lost Particles in the IR and Issues for Beam Induced Backgrounds in Higgs Factories / Boscolo, Manuela (Frascati) ; Burkhardt, Helmut (CERN)
The loss of beam particles has to be well under control in high energy and high luminosity e⁺e^{−} colliders 'namely Higgs Factories- especially at the interaction regions. In the design stage the main beam related effects causing particle losses need to be studied in details by means of full simulation to check that machine induced background rates are tolerable for the experiments and, if not, conceive an efficient collimation system to intercept particles that would eventually be lost in the Interaction region (IR). [...]
2015 - 5 p. - Published in : (2015) , pp. SAT1B2 Fulltext: PDF; External link: JACOW
In : 55th ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e- Colliders – Higgs Factory, Beijing, China, 09 - 12 Oct 2014, pp.SAT1B2
4.
Progress in the Design of Beam Optics for FCC-ee Collider Ring* / Oide, Katsunobu (KEK, Tsukuba) ; Benedikt, Michael (CERN) ; Blondel, Alain (Geneva U.) ; Bogomyagkov, Anton (Novosibirsk, IYF) ; Boscolo, Manuela (Frascati) ; Burkhardt, Helmut (CERN) ; Holzer, Bernhard (CERN) ; Koratzinos, Michael (Geneva U.) ; Levichev, Evgeny (Novosibirsk, IYF) ; Milanese, Attilio (CERN) et al.
The beam optics for the FCC-ee collider has been updated: (a) the layout is adjusted to a new footprint of FCC-hh, (b) the design around the interaction point is refined considering a number of machine-detecor interface issues, (c) the arc lattice is refined taking realistic magnet designs into account, (d) the β^{*} and betatron tunes are re-optimized according to recent results of the beam-beam simulations, and more. These changes make the collider design more realistic without performance degradation..
CERN-ACC-2017-291.- 2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-TUOCB1 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.2287348
5.
Design of Beam Optics for the FCC-ee Collider Ring / Oide, Katsunobu (KEK, Tsukuba) ; Aiba, Masamitsu (PSI, Villigen) ; Aumon, Sandra (CERN) ; Benedikt, Michael (CERN) ; Blondel, Alain (Geneva U.) ; Bogomyagkov, Anton (Novosibirsk, IYF) ; Boscolo, Manuela (LNF, Dafne Light) ; Burkhardt, Helmut (CERN) ; Cai, Yunhai (SLAC) ; Doblhammer, Andreas (CERN) et al.
A design of beam optics will be presented for the FCC-ee double-ring collider. The main characteristics are 45 to 175 GeV beam energy, 100 km circumference with two IPs/ring, 30 mrad crossing angle at the IP, crab-waist scheme with local chromaticity correction system, and "tapering" of the magnets along with the local beam energy. [...]
CERN-ACC-2016-127.- 2016 - 3 p. - Published in : 10.18429/JACoW-IPAC2016-THPOR022 Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.THPOR022
6.
Beam-gas Background Characterization in the FCC-ee IR / Boscolo, Manuela (LNF, Dafne Light) ; Blanco-García, Oscar (LNF, Dafne Light) ; Burkhardt, Helmut (CERN) ; Collamati, Francesco (INFN, Rome) ; Kersevan, Roberto (CERN) ; Lueckhof, Marian (CERN)
The MDISim toolkit is used to evaluate and characterizethe beam-gas induced background in the FCC-ee interactionregion. MDISim allows to construct in GEANT4 the actualbeam lattice structure with geometry and magnetic elementsin order to perform a full simulation enabling to study thelocation where the beam gas scattering occurs as well asthe loss point of scattered particles. [...]
2018 - 4 p. - Published in : (2018) , pp. MOPMF085
- Published in : J. Phys.: Conf. Ser. 1067 (2018) 022012 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.MOPMF085
7.
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
8.
Luminosity- and Beam- Induced Backgrounds for the FCC-ee Interaction Region Design / Voutsinas, Georgios (CERN) ; Bacchetta, Nicola (INFN, Padua) ; Boscolo, Manuela (Frascati) ; Janot, Patrick (CERN) ; Kolano, Anna (CERN) ; Perez, Emmanuelle (CERN) ; Sullivan, Michael (SLAC) ; Tehrani, Niloufar (CERN)
A preliminary study on machine induced backgrounds has been performed for the proposed FCC-ee interaction region (IR) and proto-detector. Synchrotron radiation has the strongest impact on the present design of the IR and both radiation from dipoles and quadrupoles have been taken into account. [...]
CERN-ACC-2017-160.- 2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-WEPIK004 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.WEPIK004
9.
Modelling FCC-ee Using MADX / van Riesen-Haupt, Léon (CERN) ; Burkhardt, Helmut (CERN) ; Persson, Tobias (CERN) ; Tomás García, Rogelio (CERN)
We present the latest developments for simulating FCC-ee using CERN’s MADX software. Along with updated benchmark studies, we describe how the latest MADX updates can facilitate the simulation of FCC-ee design features, including improvements in tapering and different options for implementing a tilted solenoid..
2022 - 4 p. - Published in : JACoW IPAC 2022 (2022) 1854-1857 Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1854-1857
10.
Comparison of Accelerator Codes for Simulation of Lepton Colliders / van Riesen-Haupt, Léon (CERN) ; Burkhardt, Helmut (CERN) ; Persson, Tobias H B (CERN) ; Tomás García, Rogelio (CERN)
This paper compares simulation results obtained with SAD, MAD-X and the PTC implementation in MADX for the design studies of the FCC-ee. On-momentum and off-momentum optics are explored for the various programs. [...]
JACoW, 2021 - 4 p. - Published in : JACoW IPAC 2021 (2021) 1334-1337 Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.1334-1337

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