Author: Smith, J.D.A.
Paper Title Page
WEPMY025 iMPACT, Undulator-Based Multi-Bunch Plasma Accelerator 2609
 
  • O. Mete Apsimon, K. Hanahoe, G.X. Xia
    UMAN, Manchester, United Kingdom
  • G. Burt
    Cockcroft Institute, Lancaster University, Lancaster, United Kingdom
  • B. Hidding
    USTRAT/SUPA, Glasgow, United Kingdom
  • J.D.A. Smith
    Tech-X, Boulder, Colorado, USA
 
  Funding: This work is supported by the Cockcroft Institute Core Grant and STFC.
The accelerating gradient measured in laser or electron driven wakefield accelerators can be in the range of 10-100GV/m, which is 2-3 orders of magnitude larger than can be achieved by conventional RF-based particle accelerators. However, the beam quality preservation is still an important problem to be tackled to ensure the practicality of this technology. In this global picture, the main goals of this study are planning and coordinating a physics program, the so-called iMPACT, that addresses issues such as emittance growth mechanisms in the transverse and longitudinal planes through scattering from the plasma particles, minimisation of the energy spread and maximising the energy gain while benchmarking the milestones. In this paper, a summary and planning of the project is introduced and initial multi-bunch simulations were presented.
 
DOI • reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-WEPMY025  
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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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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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