Author: Hong, J.H.
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WEP058 Emittance Measurements at the PAL-XFEL Injector Test Facility 690
 
  • J. Lee
    POSTECH, Pohang, Kyungbuk, Republic of Korea
  • J.H. Han, J.H. Hong, C.H. Kim, I.S. Ko, S.J. Lee, S.J. Park, H. Yang
    PAL, Pohang, Kyungbuk, Republic of Korea
 
  The PAL-XFEL Injector Test Facility (ITF) at PAL has been operating for experimental optimization of electron beam parameters and for beam test of various accelerator components. It consists of a photocathode RF gun, two S-band accelerating structures, a laser heater system, and beam diagnostics such as ICTs, BPMs, screens, beam energy spectrometers and an RF deflector. Projected and slice emittance measurements were carried out by using single quadrupole scan. In this paper, we present the emittance measurements.  
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WEP060 Longitudinal Electron Bunch Shaping Experiments at the PAL-ITF 694
 
  • M. Chung, J.M. Seok
    UNIST, Ulsan, Republic of Korea
  • J.H. Han, J.H. Hong, H.-S. Kang, C.H. Kim
    PAL, Pohang, Kyungbuk, Republic of Korea
  • J.C.T. Thangaraj
    Fermilab, Batavia, Illinois, USA
 
  Longitudinal shaping of electron beam has received much attention recently, due to its potential applications to THz generation, dielectric wakefield acceleration, improvement of FEL performance, and controlled space-charge modulation. Using a set of alpha-BBO crystals, shaping of laser pulse and electron bunch on the order of ps is tested at the Injector Test Facility (ITF) of Pohang Accelerator Laboratory (PAL). In particular, we investigate the response of the longitudinally-modulated beam to a dechirper, which is a vacuum chamber of two corrugated, metallic plates. Initial experimental results will be presented with analytical theory and numerical simulations.  
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