Inferring the capsule-absorbed radiation energy from experimental hohlraum radiation temperature

Chang, Tieqiang; Wang, Guangyu; Li, Yunsheng; Sheng, Jiatian; Pei, Wenbing

doi:10.1063/1.1776564

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…Since 2001, a number of the hohlraum experiments have been carried out by SG-II laser facility [10,11]. SG-II laser facility has eight beams and the output energy is about 2.5 kJ for 1ns laser pulse and third harmonics frequency.…”

Section: Lared-h Simulation Of the Hohlraum Experimentsmentioning

confidence: 99%

Numerical Simulation on Laser Fusion in China

Pei¹,

Yan²,

Gu³

et al. 2009

AIP Conference Proceedings

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Numerical simulation is a powerful tool to get insight into the physics of laser fusion. Much effort has been devoted to develop the numerical simulation code series named LARED in China. The code series LARED are composed of six parts and enable us to have the simulation capability for the key processes in laser fusion. In recent years, a number of numerical simulations using LARED have been carried out and the simulation is checked by experiments done at the laser facility SG-II and SG-III prototype. In the present talk, some details of LARED code series will be introduced, and some simulation results, especially recent work on the opacities, will be shown.

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Section: Lared-h Simulation Of the Hohlraum Experimentsmentioning

confidence: 99%

Numerical Simulation on Laser Fusion in China

Pei¹,

Yan²,

Gu³

et al. 2009

AIP Conference Proceedings

Self Cite

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A credible model describing radiation-driven implosion in cylindrical hohlraums

Chang

Sheng

et al. 2006

Physics of Plasmas

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A one-dimensional model describing the radiation-driven implosion in cylindrical hohlraums is proposed in this article. For the model, the radiation flux boundary condition is composed of both the equilibrium and the nonequilibrium parts by means of the experimentally measured radiation temperature and the nonequilibrium x-ray spectra emitted from laser spots. The correctness of the model is guaranteed by a criterion, the capsule-absorbed radiation energy inferred from the hohlraum radiation theory, which is independent of any implosion simulation [Chang et al., Phys. Plasmas 11, 4286 (2004)]. In this article the model is applied to the implosion experiments performed at the Shenguang II laser facility [Zunqi et al., Chin. J. Lasers, B10, 6 (2001)], and the neutron yields are consistent with the experimental data if the hydrodynamic instability is appropriately considered.

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