Evaluate usefulness of Aurora for radiative models

[eldond]

This might be good for enabling a synthetic spectrometer or bolometer.

https://aurora-fusion.readthedocs.io/en/latest/

"Aurora’s code is mostly written in Python 3 and Fortran 90. A Julia interface has also recently been added. The package enables radiation calculations using ADAS atomic rates, ..."

"The aurora.atomic library provides functions to load and interpolate atomic rates from ADAS ADF-11 files, as well as from ADF-15 photon emissivity coefficients (PEC) files. PEC data can alternatively be computed using the collisional-radiative model of ColRadPy, using methods in aurora.radiation."

[eldond]

Aurora's connection to open ADAS isn't working properly in some cases. fsciortino/Aurora#90 .

[eldond]

Workaround: copy adf11 from iris:/fusion/projects/omfit-results/aurora_dir/ and set $AURORA_ADAS_DIR