Author: Wang, Z.
Paper Title Page
MOZGBD5 A Proposal for Coherent Hard X-Ray Generation Based on Two-Stage EEHG 38
 
  • Z.T. Zhao, J.H. Chen, C. Feng, Z. Wang, K.Q. Zhang
    SINAP, Shanghai, People's Republic of China
 
  A two stage echo-enabled harmonic generation (EEHG) scheme to produce coherent hard X-rays is presented. Electron bunchs of quite different lengths are separately used in each stage of EEHG and a monochromator is employed to purify the radiation from the first stage for seeding the second one. Theoretical analysis and 3D simulations show that the proposed scheme can generate fully coherent hard X-ray pulses directly from a conventional UV seed laser.  
slides icon Slides MOZGBD5 [7.330 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-MOZGBD5  
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THPMK076 Longitudinal Shaping for Beam-Driven Plasma Wakefield Accelerators 4477
 
  • Z. Wang, K.Q. Zhang, Z.T. Zhao
    SINAP, Shanghai, People's Republic of China
  • S. Huang, W. Lu
    TUB, Beijing, People's Republic of China
 
  The generation of high quality driven electron beam (high peak current and small beam size) is quite important for the beam-driven plasma accelerator. Besides, a linearly ramped, more exactly, the triangular current distribution is more suitable. In this paper, by adjusting the phase and the amplitude of the harmonic linearizer, the linear ramped current distribution electron beam is generated by the FEL linac. The CSR introduced emittance growth and the jitters of the electron are researched. The electron beam generated by the ramped driven beam in the plasma is researched as well.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-THPMK076  
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THPMK078 Corrugated Structure as a Linearizer in High Repetition Rate X-Ray Free Electron Laser Source 4485
 
  • Z. Wang, C. Feng, D. Huang, K.Q. Zhang, M. Zhang
    SINAP, Shanghai, People's Republic of China
 
  A feasible method is proposed to compensate the high order mode (HOM) of the RF field, linearize the bunch compression process in the high repetition rate x-ray free electron laser source. In the proposed scheme, the corrugated structure is used in the superconducting linac to linearize the longitudinal phase space of the electron beam. The results show that the peak current of the electron beam will be increased from about 1 kA to over 2 kA with the charge of 100 pC.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-THPMK078  
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