Wen Shenglin, Shi Qikai, Zhang Yuanhang, et al. Off-line measurement experiments of far-field intensity caused by large-aperture continuous phase plates[J]. High Power Laser and Particle Beams, 2013, 25: 3343-3347. doi: 3343
Citation: Jing Longfei, Zhang Lu, Lin Zhiwei, et al. Analysis of time-dependent radiation symmetry in ICF based on self-similar solution[J]. High Power Laser and Particle Beams, 2013, 25: 3173-3179. doi: 3173

Analysis of time-dependent radiation symmetry in ICF based on self-similar solution

doi: 3173
  • Received Date: 2013-07-22
  • Rev Recd Date: 2013-08-31
  • Publish Date: 2013-12-15
  • With the self-similar solution of X-ray confinement in cavity, the time-dependent redistribution of thermal X rays inside the hohlraum is calculated. Distribution of radiation power intensity on the capsules surface is calculated via the view-factor method. After that, the time-dependent radiation drive symmetry of the capsule could be studied. The effects of motion of laser spots, laser pulses and pointing error of capsule on the radiation uniformity are analyzed. Multi parameter couples are scanned to reach the minimum of time-integrated value of the second coefficient of Legendre polynomials. The best lengths of hohlraum agree with the results of implosion symmetry tuning experiments on SG-Ⅱ and SG-Ⅲ prototype laser facilities. The best length-to-diameter ratio of hohlraum is close to the point design targets on the National Ignition Facility (NIF). The validated model may give some reference to the future experiments design and analysis of implosion symmetry.
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