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Module OpenADAS.impact_excitation_pec raises RuntimeError 'Requested PEC rate is not available' #424

Closed pedroLoureiroB closed 9 months ago

pedroLoureiroB commented 10 months ago

I'm working with the emissivity of some carbon lines, and for that I need data of PECs, which can be downloaded from https://open.adas.ac.uk/. However, even with all the data of the specific carbon line downloaded, when I try the following: adas = OpenADAS(permit_extrapolation = True) excit_c5I = adas.impact_excitation_pec(carbon, 5, (11,9)) The program raises 'RuntimeError: Requested PEC rate (class=excitation, element=C, charge=5, transition=(11, 9)) is not available'. I really don't know how I can handle it, because the code works with some carbon lines, for example: excit_c1 = adas.impact_excitation_pec(carbon, 2, ('2s2 4f1 2F6.5','2s2 3d1 2D4.5')), while it doesn't with some other lines If someone can help, I would be very grateful.

vsnever commented 10 months ago

Hi @pedroLoureiroB, You need to manually install PEC for C VI lines in the Cherab atomic data repository. To do this, run:

from cherab.openadas.install import install_adf15
from cherab.core.atomic import carbon

install_adf15(carbon, 5, 'adf15/pec96#c/pec96#c_bnd#c5.dat', download=True, header_format='hydrogen')

Despite the ion is hydrogen-like, the header_format for this specific file must be set to 'hydrogen' and not to 'hydrogen-like'.

vsnever commented 9 months ago

Fixed in #425.