RADEX 2024 version

-Introduced robust convergence scheme based on using multiple starting points for the calculation;

-Stabilized convergence with a 25% underrelaxation factor.

For more information consult Dwiriyanti et al 2024, Astronomy & Astrophysics

Basic (2017) version

Basic (2017) version of Radex, a program for non-LTE models of interstellar atomic and molecular line spectra