Compression by a spherical solid liner of a gold target surrounded by
a hydrogen plasma is simulated. Two-dimensional simulations that treat
only a subset of the physics included in the one-dimensional code wer
e performed in an attempt to assess multidimensional effects. A one-di
mensional numerical code has been developed to study the effects of th
ermal radiation and conduction. Results of pressure, density, and ener
gy deposited for different initial plasma conditions are presented and
discussed. Results from both one- and two-dimensional codes show that
the average target density at peak compression is 39-43 g/cm3, using
the SHIVA Star facility at 90 kV discharge.