The implementation of multipole collision strength between magnetic sublevels

[maelys-hmmd]

Dear @mfgu ,

I am working on the calculation of multipole collision strengths between magnetic sublevels for modeling polarized line emission in tokamak plasmas. I have been studying your 2008 paper (Can. J. Phys. 86, 675 (2008)), and I am particularly interested in Equation (51), which provides a fully magnetic-sublevel-resolved expression for the excitation cross section under a unidirectional electron beam.

To apply this formalism within FAC, I would like to ask:

1. Could you kindly clarify how Equation (51) is implemented or reflected in the excitation.c file?
2. Which subroutines correspond to the computation of multipole collision strengths between magnetic sublevels?

Thank you very much for your time and for developing such a powerful tool for the plasma physics community.