  This report describes a new equation of state (EOS) for helium. The PANDA
code was used to construct separate EOS tables for the solid and fluid phases.
The solid and fluid EOS were then assembled into a multiphase EOS table using
the PANDA phase transition option. Contributions from thermal electronic
excitation and ionization were also included in the model. The EOS gives very
good agreement with all static and shock-wave data, except at temperatures
below 20K, where further work is needed. This EOS was developed primarily for
use in models of the giant planets, the sun, and stars but should be useful in
other applications as well.
