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Ka-band linearizer studies for a compact light source
/ Castilla, Alejandro (Lancaster U. (main)) ; Burt, Graeme (Lancaster U. (main)) ; Latina, Andrea (CERN) ; Liu, Xingguang (CERN) ; Millar, William (CERN ; Lancaster U. (main)) ; Wu, Xiaowei (CERN) ; Wuensch, Walter (CERN)
The CompactLight project is currently developing the design of a next generation hard X-ray FEL facility, based on high-gradient X-band (12 GHz) structures, bright electron photo-injectors, and compact short period undulators. However, to improve the brightness limitations due to the non-linear energy spread of the electron bunches, a Ka-band (36 GHz) linearizer is being considered to provide a harmonic compensation during the bunch compression. [...]
CERN-ACC-2019-215.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPRB068
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPRB068
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Development of 36 GHz RF Systems for RF Linearisers
/ Castilla, Alejandro (CERN ; Cockcroft Inst. Accel. Sci. Tech. ; Lancaster U.) ; Behtouei, Mostafa (Frascati) ; Burt, Graeme (Lancaster U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Cai, Jinchi (CERN ; Cockcroft Inst. Accel. Sci. Tech. ; Lancaster U.) ; Cross, Adrian W (Strathclyde U.) ; Latina, Andrea (CERN) ; Liu, Xingguang (CERN) ; Nix, Laurence J R (Strathclyde U.) ; Spataro, Bruno (Frascati) ; Syratchev, Igor (CERN) et al.
As part of the deign studies, the CompactLight project plans to use an injector in the C-band. Which constitutes a particular complication for the harmonic system in charge of linearising the beam’s phase space, since it means its operation frequency could be higher than the standard X-band RF technologies. [...]
Geneva : JACoW, 2021 - 6 p.
- Published in : JACoW IPAC '21 (2021) 4518-4523
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.4518-4523
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Status of the CompactLight Design Study
/ D'Auria, Gerardo (Sincrotrone Trieste) ; Aicheler, Markus (Helsinki Inst. of Phys.) ; Aksoy, Avni (Ankara U.) ; Alesini, David (Frascati) ; Apsimon, Robert (Cockcroft Inst. Accel. Sci. Tech.) ; Arnesano, Jordan Matias (Rome U.) ; Bellaveglia, Marco (Frascati) ; Bernhard, Axel (KIT, Karlsruhe) ; Bosco, Fabio (Rome U.) ; Buonomo, Bruno (Frascati) et al.
CompactLight (XLS) is an International Collaboration of 24 partners and 5 third parties, funded by the European Union through the Horizon 2020 Research and Innovation Programme. The main goal of the project, which started in January 2018 with a duration of 36 months, is the design of an hard X-ray FEL facility beyond today’s state of the art, using the latest concepts for bright electron photo-injectors, high-gradient accelerating structures, and innovative short-period undulators. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-FEL2019-THP078
Fulltext: PDF;
In : 39th International Free Electron Laser Conference, Hamburg, Germany, 26 - 30 Aug 2019, pp.THP078
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CompactLight design study
/ D'Auria, Gerardo (Sincrotrone Trieste) ; Aicheler, Markus (U. Helsinki (main)) ; Aksoy, Avni (Ankara U.) ; Alesini, David (Frascati) ; Apsimon, Robert (Lancaster U.) ; Arnesano, Jordan Matias (U. Rome La Sapienza (main)) ; Bellaveglia, Marco (Frascati) ; Bernhard, Axel (KIT, Karlsruhe) ; Bosco, Fabio (U. Rome La Sapienza (main)) ; Buonomo, Bruno (Frascati) et al.
The H2020 CompactLight Project aims at designing the next generation of compact X-rays Free-Electron Lasers, relying on very high gradient accelerating structures (X-band, 12 GHz), the most advanced concepts for high brightness electron photo injectors, and innovative compact short-period undulators. Compared to existing facilities, the proposed facility will benefit from a lower electron beam energy, due to the enhanced undulators performance, and will be significantly more compact, with a smaller footprint, as a consequence of the lower energy and the high-gradient X-band structures. [...]
CERN-ACC-2019-186.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-TUPRB032
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.TUPRB032
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Machine Learning Models for Breakdown Prediction in RF Cavities for Accelerators
/ Obermair, Christoph (CERN ; Graz, Tech. U.) ; Apollonio, Andrea (CERN) ; Cartier-Michaud, Thomas (CERN) ; Catalán Lasheras, Nuria (CERN) ; Felsberger, Lukas (CERN) ; Millar, William L (CERN) ; Pernkopf, Franz (CERN ; Graz, Tech. U.) ; Wuensch, Walter (CERN)
Radio Frequency (RF) breakdowns are one of the most prevalent limits in RF cavities for particle accelerators. During a breakdown, field enhancement associated with small deformations on the cavity surface results in electrical arcs. [...]
Geneva : JACoW, 2021 - 4 p.
- Published in : JACoW IPAC 2021 (2021) 1068-1071
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.1068-1071
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The PolariX-TDS Project: Bead-Pull Measurements and High-Power Test on the Prototype
/ Craievich, Paolo (PSI, Villigen) ; Aßmann, Ralph (DESY) ; Bopp, Markus (PSI, Villigen) ; Braun, Hans-Heinrich (PSI, Villigen) ; Catalán Lasheras, Nuria (CERN) ; Christie, Florian (DESY) ; Citterio, Alessandro (PSI, Villigen) ; D'Arcy, Richard (DESY) ; Dorda, Ulrich (DESY) ; Foese, Manon (DESY) et al.
A collaboration between DESY, PSI and CERN has been established to develop and build an advanced modular X- band transverse deflection structure (TDS) system with the new feature of providing variable polarization of the deflecting force. The prototype of the novel X-band TDS, the Polarizable X-band (PolariX) TDS, was fabricated at PSI following the high-precision tuning-free production process developed for the C-band Linac of the SwissFEL project. [...]
2019 - 4 p.
- Published in : 10.18429/JACoW-FEL2019-WEP036
Fulltext: PDF;
In : 39th International Free Electron Laser Conference, Hamburg, Germany, 26 - 30 Aug 2019, pp.WEP036
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Ka-band linearizer structure studies for a compact light source
/ Castilla, A (Lancaster U. (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Apsimon, R (Lancaster U. (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Burt, G (Lancaster U. (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Wu, X (CERN) ; Latina, A (CERN) ; Liu, X (CERN) ; Syratchev, I (CERN) ; Wuensch, W (CERN) ; Spataro, B (LNF, Dafne Light) ; Cross, A W (Strathclyde U.)
The CompactLight design for a next-generation x-ray free-electron laser utilizes a C-band injector. This requires that the harmonic system used to linearize the beam’s phase space must operate at X-band rf or higher. [...]
2022 - 13 p.
- Published in : Phys. Rev. Accel. Beams 25 (2022) 112001
Fulltext: PDF;
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Data Augmentation for Breakdown Prediction in CLIC RF Cavities
/ Bovbjerg, Holger (CERN ; Aalborg U.) ; Apollonio, Andrea (CERN) ; Cartier-Michaud, Thomas (CERN) ; Millar, William (CERN) ; Obermair, Christoph (CERN ; Graz, Tech. U.) ; Shen, Ming (CERN ; Aalborg U.) ; Tan, Zheng-Hua (CERN ; Aalborg U.) ; Wollmann, Daniel (CERN)
One of the primary limitations on the achievable accelerating gradient in normal-conducting accelerator cavities is the occurrence of vacuum arcs, also known as RF breakdowns. A recent study on experimental data from the CLIC XBOX2 test stand at CERN proposes the use of supervised machine learning methods for predicting RF breakdowns. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 1553-1556
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.1553-1556
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S-Band Transverse Deflecting Structure Design for CompactLight
/ Wu, Xiaowei (CERN) ; Di Mitri, Simone (Sincrotrone Trieste) ; Thompson, Neil (Cockcroft Inst. Accel. Sci. Tech.) ; Wuensch, Walter (CERN)
The CompactLight project is currently developing the design of a next generation hard X-ray FEL facility, which is based on high-gradient X-band (12 GHz) structures. However, to carry out pump-and-probe experiments in the project, two-bunch operation with a spacing of 10 X-band rf cycles is proposed. [...]
JACoW, 2021 - 3 p.
- Published in : JACoW IPAC 2021 (2021) 1540-1542
Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.1540-1542
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