Introduction

PROPACEOS (PRism OPACity and Equation Of State code) generates equation of state (EOS) and multigroup opacity data utilized by radiation-hydrodynamics simulation codes.

PROPACEOS utilizes the physics library of the SPECT3D Imaging and Spectral Analysis Suite. For a grid of plasma conditions (e.g., temperature and density), it computes frequency-dependent opacities, along with specific internal energies and pressures. Results are written to files suitable for hydrodynamics codes.

In designing PROPACEOS, a strong emphasis has been placed on making it easy to use. It features a user-friendly graphical interface for setting up problems, monitoring the progress of simulations, and displaying results. It has been designed to run on multiple platforms (Windows, Unix, Mac OSX).

To get started, please refer to:

• Major features of PROPACEOS
• Conventions for documentation
• Sample problems
• Supported platforms
• Reporting bugs
• Known issues
• Revision history
• User comments and suggestions