Author: Li, Y. M.
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TUPMY025 Proton-Driven Electron Acceleration in Hollow Plasma 1601
 
  • Y. M. Li, K. Hanahoe, O. Mete Apsimon, T.H. Pacey, G.X. Xia
    UMAN, Manchester, United Kingdom
 
  Funding: President's Doctoral Scholar Award from The University of Manchester.
Proton driven plasma wakefield acceleration has been proposed to accelerate electrons to TeV-scale in a single hundreds of meters plasma section. However, it is difficult to conserve beam quality due to the positively charged driven scheme. In this paper, we demonstrate via simulation that hollow plasma is favourable to maintain the long and stable acceleration and simultaneously be able to achieve low normalized emittance and energy spread of the witness electrons. Moreover, it has much higher beam loading tolerance compared to the uniform case. This will potentially facilitates the acceleration of a large number of particles with high beam quality.
* Caldwell A et al.Nature Physics, 2009, 5(5): 363-367
** K. Lotov, Phys. Rev. ST Accel. Beams, 2010, 13(4): 041301.
*** W. Kimura et al., Phys. Rev. ST Accel. Beams, 2011, 14(4): 041301.
 
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMY025  
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TUPOY027 Beam Dynamics Studies into Grating-based Dielectric Laser-driven Accelerators 1970
 
  • Y. Wei, S.P. Jamison, C.P. Welsch
    Cockcroft Institute, Warrington, Cheshire, United Kingdom
  • K. Hanahoe, Y. M. Li, G.X. Xia
    UMAN, Manchester, United Kingdom
  • S.P. Jamison
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
  • J.D.A. Smith
    TXUK, Warrington, United Kingdom
  • Y. Wei, C.P. Welsch
    The University of Liverpool, Liverpool, United Kingdom
 
  Funding: Work supported by the EU under grant agreement 289191 and the STFC under the Cockcroft Institute core grant ST/G008248/1.
Dielectric laser-driven accelerators (DLAs) based on gratings confine an electromagnetic field induced by a drive laser into a narrow vacuum channel where electrons travel and are accelerated. This can provide an alternative acceleration technology compared to conventional rf cavity accelerators. Due to the achievable high acceleration gradient of up to several GV/m this could pave the way for future ultra-short and low costμaccelerators. This contribution presents detailed beam dynamics simulations for multi-period double grating structures. Using the computer code VSim and realistic beam distributions, the achievable acceleration gradient and final beam quality in terms of emittance and energy spread are discussed. The results are then used for an overall optimization of the accelerating structure.
 
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPOY027  
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WEPMY027 Feasibility Study of Plasma Wakefield Acceleration at the CLARA Front End Facility 2617
 
  • K. Hanahoe, R.B. Appleby, Y. M. Li, T.H. Pacey, G.X. Xia
    UMAN, Manchester, United Kingdom
  • B. Hidding
    USTRAT/SUPA, Glasgow, United Kingdom
  • B. Kyle
    University of Manchester, Manchester, United Kingdom
  • O. Mete Apsimon
    Cockcroft Institute, Lancaster University, Lancaster, United Kingdom
  • J.D.A. Smith
    Tech-X, Boulder, Colorado, USA
 
  Funding: Cockcroft Institute Core Grant and STFC
Plasma wakefield acceleration has been proposed at the CLARA Front End (FE) facility at Daresbury Laboratory. The initial phase of the experiment will acceleration of the tail of a single electron bunch, and the follow-up experiment will study preserving a high quality beam based on a two-bunch acceleration scenario. In this paper, a concept for the initial experiment is outlined and detailed simulation results are presented.
 
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-WEPMY027  
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