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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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Third-order double-achromat bunch compressors for broadband beams
/ Björklund Svensson, Jonas (Lund U.) ; Charles, Tessa K (CERN ; Melbourne U.) ; Lundh, Olle (Lund U.) ; Thorin, Sara (Lund U., MAX-lab)
Many state-of-the-art applications for linear accelerators, such as free-electron lasers (FELs) and plasma-wakefield accelerators (PWFAs), require small normalized emittances, and PWFAs in particular are very sensitive to transverse slice offsets along the beam. Dispersive systems, such as bunch compressors, can cause different chromatic aberrations, one of which yields transverse slice offsets. [...]
2019 - 7 p.
- Published in : Phys. Rev. Accel. Beams 22 (2019) 104401
Fulltext: PDF;
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Singularities of particle trajectory caustics and beam shaping in bunch compressors
/ Charles, T K (CERN ; Melbourne U.) ; Paganin, D M (Monash U.) ; Boland, M J (Saskatchewan U.) ; Dowd, R T (Australia, CSIRO, Clayton)
Caustics are a common occurrence in optics, describing the bright lines seen in a well-lit coffee cup or the dancing networks of light seen at the bottom of a swimming pool on a sunny day. Recently, caustic formation in electron trajectories was identified as the mechanism driving strong current modulations in accelerated charged-particle beams. [...]
2019 - 12 p.
- Published in : 10.1142/9789813279612_0008
In : Nonlinear Dynamics and Collective Effects in Particle Beam Physics, Arcidosso, Italy, 19 - 22 Sep 2017, pp.103-114
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Beamline Design for Plasma-Wakefield Acceleration Experiments at MAX IV
/ Svensson, Jonas Björklund (Lund U.) ; Ekerfelt, Henrik (Lund U.) ; Lundh, Olle (Lund U.) ; Mansten, Erik (Lund U., MAX-lab) ; Andersson, Joel (Lund U., MAX-lab) ; Kotur, Marija (Lund U., MAX-lab) ; Lindau, Filip (Lund U., MAX-lab) ; Thorin, Sara (Lund U., MAX-lab) ; Charles, Tessa K (CERN ; Melbourne U.)
The MAX IV Laboratory is a synchrotron radiation user facility located just outside the city of Lund, Sweden. The facility is made up of two storage rings, at 3 GeV and 1.5 GeV, respectively, and a linear accelerator, serving as a full-energy injector for the rings as well as a driver for the Short-Pulse Facility (SPF) located downstream of the extraction point to the 3 GeV ring. [...]
2019 - 4 p.
- Published in : 10.1109/AAC.2018.8659401
In : 18th Advanced Accelerator Concepts Workshop, Breckenridge, CO, US, 12 - 17 Aug 2018, pp.8659401
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Publication
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Higgs physics at the CLIC electron–positron linear collider
/ Abramowicz, H. (Tel Aviv U.) ; Abusleme, A. (Chile U., Catolica) ; Afanaciev, K. (Belarus State U.) ; Tehrani, N.Alipour (CERN) ; Balázs, C. (Monash U.) ; Benhammou, Y. (Tel Aviv U.) ; Benoit, M. (Geneva U.) ; Bilki, B. (Argonne) ; Blaising, J.J. (Annecy, LAPP) ; Boland, M.J. (Melbourne U.) et al.
The Compact Linear Collider (CLIC) is an option for a future e+e- collider operating at centre-of-mass energies up to 3 TeV, providing sensitivity to a wide range of new physics phenomena and precision physics measurements at the energy frontier. This paper is the first comprehensive presentation of the Higgs physics reach of CLIC operating at three energy stages: sqrt(s) = 350 GeV, 1.4 TeV and 3 TeV. [...]
arXiv:1608.07538; CLICDP-PUB-2016-001.-
Geneva : CERN, 2017-07-17 - 40 p.
- Published in : Eur. Phys. J. C 77 (2017) 475
Accepted version for publication: PDF; Article from SCOAP3: PDF; Fulltext: PDF;
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