ATBASE Files

PROPACEOS utilizes ATBASE collisional, radiative, and energy level data in its EOS/opacity simulations.

ATBASE files contain energy levels, and a full set of collisional and radiative transition data needed for collisional-radiative simulations, including:

• Energy levels and statistical weights.
• Collisional rate coefficients for excitation/deexcitation.
• Oscillator strengths / spontaneous emission A-values.
• Collisional rate coefficients for ionization/recombination.
• Autoionization rates.
• Photoionization cross sections.
• Dielectronic recombination rates.

Each ATBASE file contains data for a single atomic element.

AtomicModelBuilder reads ATBASE files. It does not support editing or creating them.