Author: Suk, H.
Paper Title Page
WEPZ030 Study on a Gas-filled Capillary Waveguide for Laser Wakefield Acceleration 2829
 
  • M.S. Kim, D. Jang, D. Jang, H. Suk
    APRI-GIST, Gwangju, Republic of Korea
 
  In gas-filled capillary waveguide for lase wakefield accelerators the gas flows through the two gas feed lines used to sustain constant pressure. Compared to the supersonic gas-jet system operated under high pressure, the gas at low pressure (<1atm) is injected inside capillary waveguide, so that this waveguide has experimental limit to the measurement of the neutral density. In order to investigate the gas pressure in capillary system we used computational fluid dynamics (CFD) simulation. In this paper, we presented the gas pressure changed by a variety of parameters, such as length and sizes of gas feed lines, and the method to decrease the turbulence effect at the ends of capillary.