Function `adas.run_adas214`

def run_adas214(adf04=None, geometry='Sphere', distribution='Homogeneous', line_profile='Doppler', doppler_mul=None, mass=None, length=None, aspect=None, te=None, tion=None, dens=None, b_factor=None, tr_lower=[0], tr_upper=[0], adf04_mod=None, logfile=None)

Runs the adas214 opacity code.

Parameters

adf04 : str: full name of ADAS adf04 input file
geometry : str: plasma geometry, options are 'Sphere' (default) 'Disk' ('Disc' is also allowed) 'Cylinder'
distribution : str: density distribution within the geometry, options are 'Homogeneous' (default) 'Linear' 'Parabolic'

line profile : str type of line profile, options are 'Doppler' (default) 'Lorentzian' 'Holtsmark' 'Double-Doppler' 'Voigt' 'Doppler-Holtsmark'

doppler_mul : float: width of the second Doppler component for Double-Doppler, Voigt and Doppler-Holtsmark line profiles.
length : float: length of plasma along los (b) (cm)
aspect_ratio : float: aspect rato of disk and cylinder geometries (a/b)
tion : float: ion temperature (K)
te : float: Boltzmann electron temperature (K)
dens : float, array: electron density (cm-3)
b_factor : float, array: Deviation from Boltzman for each level. If not set ground is assumed to be 1.0 and all others 0.1.
tr_lower : int, array: lower indices for requested transition(s)
tr_upper : int, array: upper indices for requested transition(s)
adf04_mod : str: full name of the modified adf04 file (optional)
logfile : str: name of log file, defaults to no output file

Returns

result : dict: results of the opacity calculation 'optical_depth' : array, optical depths 'pop_escape_factor' : array, population escape factors 'flux_escape_factor' : array, emergent flux escape factors 'trans_absorption' : absorption coefficient for requested transitions 'wave' : array, profile wavelengths from the line centre (pm) 'profile_thin' : array, normalized intensity profile of optically thin 'profile_thick' : array (30, wave), optically thick profile intensities for the first 30 optical depths 'dens_col' : column densities if an array of densities was given, ie density * length 'ratio' : array (metastables, scan), emergent flux ratios 'mid_dens' : mid-point density if an array of densities was given

Notes

Calls a fortran executable code and communicates via a bi-directional pipe connected to stdout.

The routine may result in output files being written to disk.

line_profile, distribution and geometry are case insensitive.

The interactive code sets up the column density scan by requesting a min, max and number of steps for a multipler.

If not set the Boltzmann deviation factor defaults to 1.0 for the ground state and 0.0 for all excited states.

References

ADAS manual description of adas214: http://www.adas.ac.uk/man/chap2-14.pdf

Version History

Martin O'Mullane, 16-02-2024
- First version

Examples

Example 2 in the adas214 manual comparing the escape factor for the Lyman-alpha and Lyman-beta lines in Asdex divertor conditions showing that the Lyman-alpha is optically thick while Lyman-beta is not.

>>> import adas as adas
>>> file='/home/adas/adas/adf04/copha#h/copha#h_bn#97h.dat'
>>> res = adas.run_adas214(adf04=file, line_profile='Voigt', doppler_mul=0.14,
>>>                        geometry='cylinder', length=7.5, aspect=5,
>>>                        distribution='parabolic', dens=1.0e14,
>>>                        te=11605.0, tion=23010.0,
>>>                        b_factor=[1.0, 0, 0, 0, 0],
>>>                        tr_upper=[3,3], tr_lower=[2,1])
>>> res['pop_escape_factor'][adas.i4indf(res['optical_depth'], res['trans_absorption'][0])]
0.9998808592395294
>>> res['pop_escape_factor'][adas.i4indf(res['optical_depth'], res['trans_absorption'][1])]
0.2719851583211049