B K Godwal
Articles written in Pramana – Journal of Physics
Volume 8 Issue 3 March 1977 pp 217-222 Plasma Physics
Saha’s ionization equation for high
Saha’s ionization equation has been solved for high
Volume 11 Issue 1 July 1978 pp 47-53
Opacities of high temperature high
A procedure is described for computation of opacities for high
Volume 19 Issue 3 September 1982 pp 225-229 Solid State Physics
Volume variation of nuclear Grüneisen parameter for equation of state studies
The method of first principle pseudopotential is used to simulate the volume variation of nuclear Grüneisen parameter. The elements Al and Be, for which Neal’s experimental data exist are investigated. The nuclear Grüneisen obtained from the details of phonon frequencies are in better agreement with the experimental data as compared to those obtained from approximate Slater and Dugdale-MacDonald methods, often used in shock wave studies.
Volume 29 Issue 1 July 1987 pp 93-101 Condensed Matter Physics
Shock Hugoniot calculations and melting in Pb
B K Godwal S K Sikka R Chidambaram
Shock Hugoniot calculations are carried out for lead (Pb) using both solid and liquid state theories. The Hugoniots in solid and liquid cases are in mutual agreement within the experimental uncertainties. However, the shock temperatures are quite different as computed from solid and liquid state theories. This fact can perhaps be used to detect melting along the shock Hugoniot provided the shock temperatures are accurately measured.
Volume 31 Issue 6 December 1988 pp 519-522 Condensed Matter Physics
On the nature of the dhcp to fcc transition under pressure in Pr and Pr-Th alloys
V Vijayakumar B K Godwal S K Sikka R Chidambaram
The results of electrical resistance (
Volume 58 Issue 5-6 May 2002 pp 881-884 Superconductivity
P Modak R S Rao B K Godwal S K Sikka
Results of
Volume 59 Issue 1 July 2002 pp 33-51 Research Articles
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-
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