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Driver-witness configuration in CNT array-based acceleration
/ Barbera Ramos, Moises (Valencia U.) ; Bonatto, Alexandre (Rio Grande do Sul U.) ; Bontoiu, Cristian (Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Xia, Guoxing (Cockcroft Inst. Accel. Sci. Tech. ; Manchester U.) ; Resta-Lopez, Javier (Valencia U.) ; Apsimon, Oznur (Cockcroft Inst. Accel. Sci. Tech. ; Manchester U.) ; Martín-Luna, Pablo (Valencia U., IFIC) ; Rodin, Volodymyr (CERN)
Solid-state plasma wakefield acceleration might be an alternative to accelerate particles with ultra-high accelerating gradients, in the order of TV/m.In addition, due to their thermodynamic properties, 2D carbon-based materials, such as graphene layers and/or carbon nanotubes (CNT) are good candidates to be used as the media to sustain such ultra-high gradients. In particular, due to their cylindrical symmetry, multi-nm-aperture targets, made of CNT bundles or arrays may facilitate particle channelling through the crystalline structure.In this work, a two-bunch, driver-and-witness configuration is proposed to demonstrate the potential to achieve particle acceleration as the bunches propagate along a CNT-array structure.Particle-in-cell simulations have been performed using the VSIM code in a 2D Cartesian geometry to study the acceleration of the second (witness) bunch caused by the wakefield driven by the first (driver) bunch.The effective plasma-density approach was adopted to estimate the wakefield wavelength, which was used to identify the ideal separation between the two bunches, aiming to optimize the witness-bunch acceleration and focusing.Simulation results show the high acceleration gradient obtained, and the energy transfer from the driver to the witness bunch..
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) TUPA052
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.TUPA052
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Simulations of an energy dechirper based on dielectric lined waveguides
/ Nie, Y. (CERN) ; Xia, G. (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Pacey, T. (Manchester U. ; Cockcroft Inst. Accel. Sci. Tech.)
Terahertz frequency wakefields can be excited by ultra-short relativistic electron bunches travelling through dielectric lined waveguide (DLW) structures. These wakefields can either accelerate a witness bunch with high gradient, or modulate the energy of the driving bunch. [...]
arXiv:1711.07244.-
2017-12-02 - 5 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 909 (2018) 271-275
Fulltext: PDF; Fulltext from Publisher: PDF;
In : 3rd European Advanced Accelerator Concepts Workshop, La Biodola, Isola d'Elba, Italy, 24 - 30 Sep 2017, pp.271-275
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Preliminary Study for an RF photocathode based electron injector for awake project
/ Mete, Oznur (U. Manchester (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Xia, Guoxing (U. Manchester (main) ; Cockcroft Inst. Accel. Sci. Tech.) ; Burt, Graeme (Lancaster U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Chattopadhyay, Swapan (Cockcroft Inst. Accel. Sci. Tech. ; U. Liverpool (main) ; U. Manchester (main) ; Lancaster U.)
AWAKE project, a proton driven plasma wakefield acceleration (PDPWA) experiment is approved by CERN. The PDPWA scheme consists of a seeding laser, a drive beam to establish the accelerating wakefields within the plasma cell; and a witness beam to be accelerated. [...]
arXiv:1405.5890.-
2014-07 - 3 p.
- Published in : 10.18429/JACoW-IPAC2014-MOPRI050
Preprint: PDF; External link: JACOW
In : 5th International Particle Accelerator Conference, Dresden, Germany, 15 - 20 Jun 2014, pp.MOPRI050
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An $ep$ collider based on proton-driven plasma wakefield acceleration
/ Wing, M. (University Coll. London) ; Xia, G. (Cockcroft Inst. Accel. Sci. Tech.) ; Mete, O. (Cockcroft Inst. Accel. Sci. Tech.) ; Aimidula, A. (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.) ; Welsch, C. (Cockcroft Inst. Accel. Sci. Tech. ; Liverpool U.) ; Chattopadhyay, S. (Lancaster U. ; Cockcroft Inst. Accel. Sci. Tech. ; Manchester U. ; Liverpool U.) ; Mandry, S. (University Coll. London ; Munich, Max Planck Inst.)
Recent simulations have shown that a high-energy proton bunch can excite strong plasma wakefields and accelerate a bunch of electrons to the energy frontier in a single stage of acceleration. This scheme could lead to a future $ep$ collider using the LHC for the proton beam and a compact electron accelerator of length 170 m, producing electrons of energy up to 100 GeV. [...]
arXiv:1407.1989.-
SISSA, 2014-07-08 - 6 p.
- Published in : PoS DIS2014 (2014) 244
Fulltext: PDF; External link: PoS server
In : 22nd International Workshop on Deep-Inelastic Scattering and Related Subjects, Warsaw, Poland, 28 Apr - 02 May 2014, pp.244
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Crab cavities for linear colliders
/ Burt, G. (Cockcroft Inst. Accel. Sci. Tech. ; Lancaster U.) ; Ambattu, P. (Cockcroft Inst. Accel. Sci. Tech. ; Lancaster U.) ; Carter, R. (Cockcroft Inst. Accel. Sci. Tech. ; Lancaster U.) ; Dexter, A. (Cockcroft Inst. Accel. Sci. Tech. ; Lancaster U.) ; Tahir, I. (Cockcroft Inst. Accel. Sci. Tech. ; Lancaster U.) ; Beard, C. (Daresbury) ; Dykes, M. (Daresbury) ; Goudket, P. (Daresbury) ; Kalinin, A. (Daresbury) ; Ma, L. (Daresbury) et al.
Crab cavities have been proposed for a wide number of accelerators and interest in crab cavities has recently increased after the successful operation of a pair of crab cavities in KEK-B. In particular crab cavities are required for both the ILC and CLIC linear colliders for bunch alignment. [...]
arXiv:0810.2880; SLAC-PUB-14695; FERMILAB-CONF-08-537-AD-TD.-
2008 - 3 p.
- Published in : Conf.Proc.C: 09292 (2008) , pp. 830-832
Fulltext: PDF; External links: Fermilab Library Server (fulltext available); SLAC Document Server
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Normal Conducting Deflecting Cavity Development at the Cockcroft Institute
/ Burt, G (Cockcroft Inst. Accel. Sci. Tech.) ; Ambattu, P K (Cockcroft Inst. Accel. Sci. Tech.) ; Dexter, A C (Cockcroft Inst. Accel. Sci. Tech.) ; Woolley, B (Cockcroft Inst. Accel. Sci. Tech.) ; Jones, R M (U. Manchester (main)) ; Grudiev, A (CERN) ; Dolgashev, V (SLAC) ; Wheelhouse, A (Daresbury) ; Mackenzie, J (Daresbury) ; McIntosh, P A (Daresbury) et al.
Two normal conducting deflecting structures are currently being developed at the Cockcroft Institute, one as a crab cavity for CERN linear collider CLIC and one for bunch slice diagnostics on low energy electron beams for Electron Beam Test Facility EBTF at Daresbury. Each has its own challenges that need overcome. [...]
2013 - 3 p.
- Published in : Conf. Proc.: C120909 (2012) , pp. MOPB079
External link: Published version from JaCoW
In : 26th International Linear Accelerator Conference, Tel Aviv, Israel, 9 - 14 Sep 2012, pp.357-359
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