TITLE

Radiation-temperature shock scaling of 1 ns laser-driven hohlraums

AUTHOR(S)
Yongsheng Li; Ke Lan; Dongxian Lai; Yaoming Gao; Wenbing Pei
PUB. DATE
April 2010
SOURCE
Physics of Plasmas;Apr2010, Vol. 17 Issue 4, p042704
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Simulations of the x-ray ablation process of aluminum are performed using a one-dimensional multigroup radiation hydrodynamic code RDMG [F. Tinggui et al., Chin. J. Comput. Phys. 16, 199 (1999)]. The scaling relation of the peak temperatures of the x-ray sources with the shock velocities is studied, and its dependence on the temporal profile and the length of the x-ray sources is described and analyzed in this paper. A scaling relation applicable to x-ray sources of 1 ns pulse laser-driven hohlraums is proposed, the dependence of which is studied and found to be negligible. Our scaling relation of radiation temperature versus shock velocity is about 10 eV lower than that proposed by Kauffman et al. [Phys. Rev. Lett. 73, 2320 (1994)] for shock velocity of (4–8)×106 cm/s.
ACCESSION #
50174253

 

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