Function adas.spectroscopic2atomic

Return the

Parameters

ion : str, optional array

ionisation degree I is neutral, II singly ionised etc.

Returns

iz : integer, may be an array

ionisation degree in atomic convention 0 for neutral, 1 for singly charged etc. -1 is returned for invalid input.

Notes

Limited to 0-92 so not a general purpose roman to arabic conversion routine.

Lower case Roman numerals are not considered as these are not correct for spectroscopic notation.

Version History

• Martin O'Mullane, 05-04-2021
  • First version

Example

>>> import adas as adas
>>> adas.spectroscopic2atomic(['I', 'XI', 'L'])
array([ 0, 10, 49])
>>> adas.spectroscopic2atomic('II')
1