Diag.lowest_ion_density_for_photoabs
====================================
For efficiency reasons, SIROCCO does not try to calculate photoabsorption
for an ion with an extremly low density.  This advance parameter changes
this density limit

Type
  Double

Unit
  n/cm**3

Values
  Greater than 0

File
  `diag.c <https://github.com/sirocco-rt/sirocco/blob/master/source/diag.c>`_


Parent(s)
  * :ref:`Diag.use_standard_care_factors`: ``False``