High Power Laser and Particle Beams, Volume. 34, Issue 3, 031019(2022)

Simulation of generating attosecond water window band pulses by enhanced self-amplified spontaneous emission method

Lingjun Tu1,2, Chao Feng1,3、*, Xiaofan Wang4, and Zhentang Zhao1,3
Author Affiliations
  • 1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
  • 3Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
  • 4Shenzhen Integrated Particle Facility Research Institute, Shenzhen 518000, China
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    Figures & Tables(6)
    Scheme of enhanced self-amplified spontaneous emission (ESASE)
    Energy distribution of electron beam after modulation
    Current profile and energy spread at 11.3 m undulator
    Gain process in the radiator
    Energy spread distribution and FEL pulse profile at 11.3 m undulator
    • Table 1. Parameters for simulation

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      Table 1. Parameters for simulation

      initial beam parameters
      average energy/GeV2.5
      average current/A800
      energy spread/%0.01
      RMS of horizontal position/μm10
      RMS of horizontal momentum/(m·s−1) 1×10−6
      modulative laser parameters
      wavelength/nm2400
      maximum electric field intensity/(GV·m−1) 5
      FWHM/fs8
      wiggler & chicane parameters
      period/cm16
      period number1
      K39.27
      R56/mm0.75
      undulator parameters
      K2.75
      period/cm3
      period number532
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    Lingjun Tu, Chao Feng, Xiaofan Wang, Zhentang Zhao. Simulation of generating attosecond water window band pulses by enhanced self-amplified spontaneous emission method[J]. High Power Laser and Particle Beams, 2022, 34(3): 031019

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    Paper Information

    Category: Laser Numerical Simulation

    Received: Jul. 13, 2021

    Accepted: --

    Published Online: Mar. 28, 2022

    The Author Email: Chao Feng (fengchao@zjlab.org.cn)

    DOI:10.11884/HPLPB202234.210282

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