Glossary

ATBASE

A suite of atomic physics codes designed to generate high-quality atomic data for collisional-radiative spectral analysis simulations. It utilizes a suite of atomic structure and modeling codes, including Hartree-Fock, Dirac-Fock, configuration interaction, and distorted wave codes. For more information, see the Prism's ATBASE web site.

AtomicModelBuilder

Application to enable users to build custom atomic model files. Supports selection of and "bundling" of atomic energy levels contained in atomic data base (ATBASE) files.

Equation of State (EOS)

The relation between the plasma (or separately electron or ion) temperature, pressure, internal energy, and density.

HYDROPLOT

An visualization application used to generate plots of the results of HELIOS simulations. See also HYDROPLOT documentation.

NetCDF

The NetCDF (network Common Data Form) library provides a machine-independent format for representing scientific data. The netCDF software was developed at the Unidata Program Center in Boulder, Colorado. For more information, see the NetCDF web site.

 

PROPACEOS

PROPACEOS is the Prism Opacity and Equation of State application and library. It is built upon algorithms of the SPECT3D spectral analysis code and data from the ATBASE suite of atomic structure and cross section codes. For more information, see the Prism's PROPACEOS web site.

 

region

The spatial grid in a HELIOS simulation is composed of one or more regions. Each region is composed of a single materal. (A given material, however, can be located in more than one region.) Initial conditions for the simulation are set up on a region-by-region basis.

 

SESAME

Equation of state tables from Los Alamos National Laboratories. For more information, see the LANL's SESAME web site.

SPECT3D

The SPECT3D imaging and spectral analysis package computes images and spectra that can be compared with experimental data. In simulating spectra and images, SPECT3D utilizes plasma temperature and density distributions from: 1-D, 2-D, or 3-D radiation-hydrodynamics codes; 1-D or 2-D distributions from the PLASMAGEN plasma grid generation code; or a simple single-cell plasma. For more information, see the Prism's SPECT3D web site.

 

VISRAD

VISRAD is a 3-D view factor code that can be used to simulate the radiation field environment throughout a three-dimensional grid of surface elements. It is designed to predict temperature and radiative flux distributions throughout target components in laser and Z-pinch laboratory plasma experiments. It features a user-friendly graphical interface for setting up 3-D object grids and displaying results.

 

For a given surface element (or set of surface elements) VISRAD can compute the time- and frequency-dependent incident flux onto that surface, and write the results to a file. HELIOS can utilize VISRAD incident flux files in specifying external radiation sources. For more information, see the Prism's VisRad web site.