NDLI: Effects of non-local thermodynamic equilibrium conditions on numerical simulations of inertial confinement fusion plasmas

Content Provider	Springer Nature Link
Author	Gupta, N K Godwal, B K
Copyright Year	2002
Abstract	Effects of non-local thermodynamic equilibrium (non-LTE) condition on emission and hydrodynamics of typical inertial confinement fusion (ICF) plasmas are studied. The average degree of ionization at high temperatures is seen to be much lower compared to the values obtained from Thomas-Fermi scaling or Saha equation for high-Z element like gold. LTE and non-LTE predictions for emitted radiation from laser-driven gold foil are compared with the experimental results and it is seen that non-LTE simulations show a marked improvement over LTE results. The effects of one group and multigroup, LTE and non-LTE approximations of radiation transport on hydrodynamic parameters are studied for laser-driven aluminium and gold foils. It is further seen that non-LTE and multigroup effects play an important role in predicting conversion efficiency of laser light to X-rays.
Starting Page	33
Ending Page	51
Page Count	19
File Format	PDF
ISSN	03044289
Journal	Pramana
Volume Number	59
Issue Number	1
e-ISSN	09737111
Language	English
Publisher	Springer India
Publisher Date	2002-01-01
Publisher Place	New Delhi
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Non-LTE opacity emissivity ICF radiation transport hydrodynamics conversion efficiency Physics Astronomy Astrophysics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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Effects of non-local thermodynamic equilibrium conditions on numerical simulations of inertial confinement fusion plasmas