Dielectronic Recombination (DR) Rate Coefficient
The total DR rate coefficient averaged over a Maxwell-Boltzmann electron energy distribution at temperature T is given by
are the statistical weights of the states i
is the resonance energy, Ajia
is the autoionization rate from the states j
is the Rydberg energy, kB
is the Boltzman constant, and a0
is the Bohr radius.
denotes the radiative stabilizing branching ratio and can be expressed as
where the final states t
are below and above the ionization threshold, respectively.
is the branching ratio for radiative stabilization of t
and can be determined by evaluation Bj
For convenience in plasma modeling we have fitted our total DR rate coefficients by the formula
is in units of eV.