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Lee, J.

Paper Title Page
TPAE053 Near-GeV Electron Beams from the Laser Wakefield Accelerator in the “Bubble” Regime
 
  • N. Hafz, H. Suk
    KERI, Changwon
  • D.-K. Ko, J. Lee
    APRI-GIST, Gwangju
 
  Funding: This research was funded by the Korean Ministry Science and Technology through the Creative Research Initiative (CRI) Program.

This Communication describes a 2D-PIC simulation of a laser wakefield accelerator in which an ultrashort, petawatt-class laser is focused and propagated through an underdense preformed plasma. We are looking at the phase-spaces of a large number of background plasma electrons that are accelerated to very high energies by the laser-induced plasma bubble. The result shows the possibility of generating a GeV-level electron beam in a few millimeters plasma size. As a future work, we will use a 500 TW laser system, that is under construction at APRI-GIST in Korea, for laser-plasma based accelerator researches to which the current simulation is relevant.

 
TPAE055 Laser-Based Electron Acceleration Experiment in KERI/APRI-GIST
 
  • G.-H. Kim, N. Hafz, H. Suk
    KERI, Changwon
  • I. W. Choi, D.-K. Ko, J. Lee, T.J. Yu
    APRI-GIST, Gwangju
 
  Laser-based acceleration of charged particles has been of interest since laser wakefield produces very strong longitudinal electrical field to accelerate electrons upto relativistic energy. Recently, 20TW Ti:sapphire laser system, with pulse width of 30 fs and energy pf 600 mJ, was installed in APRI-GIST. The laser pulse is focused onto a gas jet to produce plasma and accelerate electrons in the scheme of self-modulated laser wakefield acceleration. Details of laser system and diagnostic results of electron beam will be discussed