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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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Electron Beam Based Leather Tanning
/ Apsimon, Robert (Lancaster U. (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Dewhurst, Kay (Lancaster U. (main) ; Cockcroft Inst. Accel. Sci. Tech. ; CERN) ; Setiniyaz, Sadiq (Lancaster U. (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Seviour, Rebecca (Huddersfield U.) ; Turner, Daniel (Lancaster U. (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Wise, William (Unlisted, UK)
Tanning of leather for clothing, shoes, and handbags uses potentially harmful chemicals that often run off into local water supplies or require a large carbon footprint to safely recover these pollutants. In regions of the world with significant leather production, this can lead to a significant environmental impact. [...]
2022 - 5 p.
- Published in : JACoW LINAC 2022 (2022) 645-649
Fulltext: PDF;
In : 31st Linear Accelerator Conference (LINAC22), Liverpool, UK, 28 Aug - 2 Sep 2022, pp.645-649
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3.
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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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4.
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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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The CompactLight Design Study
/ D'Auria, G (Sincrotrone Trieste) ; Adli, E (Oslo U.) ; Aicheler, M (Helsinki Inst. of Phys.) ; Aksoy, A (Ankara U.) ; Alesini, D (Frascati) ; Apsimon, R (Daresbury ; Lancaster U.) ; Arnsberg, J (KIT, Karlsruhe) ; Auchettl, R (ASP, Melbourne) ; Bainbridge, A (Daresbury) ; Balazs, K (CERN) et al.
CompactLight is a Design Study funded by the European Union under theHorizon 2020 research and innovation funding programme, with Grant Agreement No. 777431.CompactLight was conducted by an International Collaboration of 23 internationallaboratories and academic institutions, three private companies, and five third parties.The project, which started in January 2018 with a duration of 48 months, aimed to designan innovative, compact, and cost-effective hard X-ray FEL facility complemented by asoft X-ray source to pave the road for future compact accelerator-based facilities. [...]
2024 - 208 p.
- Published in : Eur. Phys. J. Spec. Top. 233 (2024) 1-208
Fulltext: PDF;
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Design, fabrication, and low-power rf measurement of an X-band dielectric-loaded accelerating structure
/ Wei, Yelong (CERN ; Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Bursali, Hikmet (CERN ; Rome U.) ; Grudiev, Alexej (CERN) ; Freemire, Ben (Euclid TechLabs, Rockville) ; Jing, Chunguang (Euclid TechLabs, Rockville ; Argonne) ; Bedolla, Joel Sauza (Lancaster U.) ; Wegner, Rolf (CERN) ; Welsch, Carsten (Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.)
Dielectric-loaded accelerating (DLA) structures are being studied as an alternative to conventional disk-loaded copper structures to produce the high accelerating gradient. This paper presents the design, fabrication and low-power RF measurement of an externally-powered X-band DLA structure with a dielectric constant $\varepsilon$$_{r}$ = 16.66 and a loss tangent tan$_{\delta}$ = 3.43 x 10$^{-5}$. [...]
arXiv:2110.12147.-
2022-04-01 - 16 p.
- Published in : Phys. Rev. Accel. Beams 25 (2022) 041301
Fulltext: PhysRevAccelBeams.25.041301 - PDF; 2110.12147 - PDF;
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Hosing of a long relativistic particle bunch in plasma
/ AWAKE Collaboration
Experimental results show that hosing of a long particle bunch in plasma can be induced by wakefields driven by a short, misaligned preceding bunch. Hosing develops in the plane of misalignment, self-modulation in the perpendicular plane, at frequencies close to the plasma electron frequency, and are reproducible. [...]
arXiv:2309.03785.-
2024-02-13 - 7 p.
- Published in : Phys. Rev. Lett. 132 (2024) 075001
Fulltext: 2309.03785 - PDF; Publication - PDF;
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