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Generation of plasma blocks accelerated by nonlinear forces from ultraviolet KrF laser pulses for fast ignition

Sadighi Bonabi, R ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. DOI: 10.1017/S0263034609990656
  3. Publisher: 2010
  4. Abstract:
  5. Here we report on the production of highly directed ion blocks by plasma interaction of ultraviolet wavelength light produced from a KrF laser. This may support the requirement to produce a fast ignition deuterium-tritium fusion at densities not much higher than the solid state by a single shot petawatt-picoseconds ultraviolet laser pulse. Using double Rayleigh initial density profiles, we are studying numerically how the nonlinear force necessary to accelerate plasma blocks may reach the highest possible thickness. Propagation of plasma blocks and the volumetric hot electrons can be shown in detail. Results of computations for wavelengths of two lasers are compared, which show that the block current density for a KrF laser is approximately four times bigger than for the Nd-glass lasers. This is in good agreement with the number predicted by theory
  6. Keywords:
  7. Fusion drivers ; Harmonic generation ; Hazardous materials ; Skin layer ; Deuterium-tritium ; Fast ignition ; Fast ignition fusion ; Initial density ; KrF lasers ; Nonlinear force ; Petawatt ; Picoseconds ; Plasma blocks ; Rayleigh ; Single shots ; Skin layer ; Ultraviolet laser pulse ; Ultraviolet wavelength ; Deuterium ; Glass lasers ; Hot electrons ; Krypton ; Laser pulses ; Neodymium lasers ; Plasma accelerators ; Plasma interactions ; Pulsed laser applications ; Tritium ; Ultraviolet lasers
  8. Source: Laser and Particle Beams ; Volume 28, Issue 1 , 2010 , Pages 101-107 ; 02630346 (ISSN)
  9. URL: https://www-cambridge-org/core/journals/laser-and-particle-beams/article/div-classtitlegeneration-of-plasma-blocks-accelerated-by-nonlinear-forces-from-ultraviolet-krf-laser-pulses-for-fast-ignitiondiv/358655A43C1B81C397025CA7CC82BD7C