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1.
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The status of the FCC-ee optics tuning
/ van Riesen-Haupt, Léon (Ecole Polytechnique, Lausanne) ; Franchi, Andrea (ESRF, Grenoble) ; Faus-Golfe, Angeles (IJCLab, Orsay) ; Chance, Antoine (Paris, CEA) ; Dalena, Barbara (Paris, CEA) ; Järmyr Eriksson, Carl (CERN) ; Carli, Christian (CERN) ; Garcia Jaimes, Cristobal Miguel (Ecole Polytechnique, Lausanne) ; Shatilov, Dmitry (CERN) ; Musa, Elaf (DESY) et al.
With a circumference of approximately 91 km, the Future Circular electron-positron Collider, FCC-ee, aims for unprecedented luminosities at beam energies from 45.6 to 182.5 GeV. A major challenge is reaching its design performance in the presence of magnet misalignments and field errors. [...]
2024 - 4 p.
- Published in : JACoW IPAC 2024 (2024) WEPR02
Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.WEPR02
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2.
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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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3.
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Progress of the FCC-ee optics tuning working group
/ Bauche, J (CERN) ; da Silva, T (IRFU, Saclay) ; Shatilov, D (CERN) ; Chance, A (IRFU, Saclay) ; Wu, Y (Ecole Polytechnique, Lausanne) ; Wang, Y (Beijing, Inst. High Energy Phys.) ; Tomas, Rogelio (CERN) ; Franchi, Andrea (ESRF, Grenoble) ; Faus-Golfe, Angeles (IJCLab, Orsay) ; Dalena, Barbara (IRFU, Saclay) et al.
FCC-ee is a proposed lepton collider with a circumference close to 100 km to produce an unprecedented amount of luminosity. The FCC-ee optics tuning working group is addressing one of the most critical aspects of the FCC-ee, that is the recovery of the optics design performance in presence of realistic imperfections. [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) WEPL023
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.WEPL023
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4.
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Scaling of hybrid multi bend lattice cells
/ Liuzzo, S M (ESRF, Grenoble) ; Carmignani, N (ESRF, Grenoble) ; Carver, L R (ESRF, Grenoble) ; Hoummi, L (ESRF, Grenoble) ; Perron, T (ESRF, Grenoble) ; White, S (ESRF, Grenoble) ; Raimondi, P (SLAC ; CERN ; ESRF, Grenoble) ; García, O R Blanco (SOLEIL, Saint-Aubin)
The hybrid multi bend (HMBA) lattice has been introduced to the accelerator community with the ESRF-EBS storage ring. Scaling an HMBA storage ring (SR) to different number of cells or cell length may lead to loss of performances, in terms of dynamic aperture (DA), momentum acceptance (MA) and natural horizontal emittance of the resulting SR. [...]
2023
- Published in : JACoW IPAC 2023 (2023) MOPA144
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.MOPA144
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5.
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Bayesian Optimization Algorithms for Accelerator Physics
/ Roussel, Ryan (SLAC) ; Edelen, Auralee L. (SLAC) ; Boltz, Tobias (SLAC) ; Kennedy, Dylan (SLAC) ; Zhang, Zhe (SLAC) ; Ji, Fuhao (SLAC) ; Huang, Xiaobiao (SLAC) ; Ratner, Daniel (SLAC) ; Garcia, Andrea Santamaria (KIT, Karlsruhe) ; Xu, Chenran (KIT, Karlsruhe) et al.
Accelerator physics relies on numerical algorithms to solve optimization problems in online accelerator control and tasks such as experimental design and model calibration in simulations. The effectiveness of optimization algorithms in discovering ideal solutions for complex challenges with limited resources often determines the problem complexity these methods can address. [...]
arXiv:2312.05667; FERMILAB-PUB-23-0846-AD.-
2024-08-01 - 42 p.
- Published in : Phys. Rev. Accel. Beams 27 (2024) 084801
Fulltext: 2312.05667 - PDF; FERMILAB-PUB-23-0846-AD - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
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6.
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Positron driven muon source for a muon collider
/ Alesini, D. (Frascati) ; Antonelli, M. (Frascati) ; Biagini, M.E. (Frascati) ; Boscolo, M. (Frascati) ; Blanco-García, O.R. (Frascati) ; Ciarma, A. (Frascati) ; Cimino, R. ; Iafrati, M. ; Giribono, A. (Frascati) ; Guiducci, S. (Frascati) et al.
The design of a future multi-TeV muon collider needs new ideas to overcome the technological challenges related to muon production, cooling, accumulation and acceleration. [...]
arXiv:1905.05747.
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2019. - 18 p.
Fulltext
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7.
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Muon Accumulator Ring Requirements for a Low Emittance Muon Collider from Positrons on Target
/ Boscolo, Manuela (Frascati) ; Antonelli, Mario (Frascati) ; Blanco-García, Oscar (Frascati) ; Collamati, Francesco (INFN, Rome) ; Guiducci, Susanna (Frascati) ; Keller, Lewis (SLAC) ; Liuzzo, Simone (ESRF, Grenoble) ; Raimondi, Pantaleo (ESRF, Grenoble) ; Schulte, Daniel (CERN)
Very low emittance muon beams can be produced by direct annihilation of about 45~GeV positrons on atomic electrons in a thin target. With such a muon beam source, a mu+mu- collider can be designed in the multi-TeV range at very high luminosities. [...]
CERN-ACC-2018-073.-
2018 - 4 p.
- Published in : 10.18429/JACoW-IPAC2018-MOPMF087
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.MOPMF087
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8.
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Studies of a scheme for low emittance muon beam production from positrons on target
/ Collamati, Francesco (INFN, Rome) ; Antonelli, Mario (Frascati) ; Boscolo, Manuela (Frascati) ; Biagini, Marica (Frascati) ; Blanco-Garcia, Oscar (Frascati) ; Variola, Alessandro (Frascati) ; Bacci, Alberto (INFN, Milan) ; Liuzzo, Simone (ESRF, Grenoble) ; Raimondi, Pantaleo (ESRF, Grenoble) ; Chaikovska, Iryna (Orsay, LAL) et al.
A new scheme to produce muon beams characterised by very low emittance, in such a way to avoid the need for cooling, using a positron beam of about 45 GeV interacting on electrons on target is being studied by our group. This scheme is challenging and innovative, and needs a full design study to be developed. [...]
SISSA, 2018 - 8 p.
- Published in : PoS EPS-HEP2017 (2017) 531
Fulltext: PDF; External link: PoS server
In : 2017 European Physical Society Conference on High Energy Physics, Venice, Italy, 05 - 12 Jul 2017, pp.531
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9.
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Studies of a Scheme for Low Emittance Muon Beam Production From Positrons on Target
/ Boscolo, Manuela (Frascati) ; Antonelli, Mario (Frascati) ; Bacci, Alberto (INFN, Milan) ; Biagini, Maria (Frascati) ; Blanco-García, Oscar (Frascati) ; Chaikovska, Iryna (Orsay, LAL) ; Chehab, Robert (Orsay, LAL) ; Collamati, Francesco (INFN, Rome) ; Iafrati, Matteo (ENEA, Frascati) ; Keller, Lewis (SLAC) et al.
We are studying a new scheme to produce very low emittance muon beams using a positron beam of about 45 GeV interacting on electrons on target. This is a challenging and innovative scheme that needs a full design study. [...]
IPAC-2017-WEOBA3; CERN-ACC-2017-189.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-WEOBA3
Fulltext: PDF; External link: JACoW
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.WEOBA3
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10.
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Improving the precision of linear optics measurements based on turn-by-turn beam position monitor data after a pulsed excitation in lepton storage rings
/ Malina, L (Oslo U. ; CERN) ; Coello de Portugal, J (CERN) ; Persson, T (CERN) ; Skowroński, P K (CERN) ; Tomás, R (CERN) ; Franchi, A (ESRF, Grenoble) ; Liuzzo, S (ESRF, Grenoble)
Beam optics control is of critical importance for machine performance and protection. Nowadays, turn-by-turn (TbT) beam position monitor (BPM) data are increasingly exploited as they allow for fast and simultaneous measurement of various optics quantities. [...]
2017 - 8 p.
- Published in : Phys. Rev. Accel. Beams 20 (2017) 082802
Fulltext: PDF;
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