Effective rates for calculation of steady state and time dependent plasmas

We have applied the atomic physics and plasma modeling codes developed at the Los Alamos National Laboratory to plasmas of neon, silicon, argon, titanium, and iron. For each plasma we have calculated effective ionization and recombination rate coefficients using two different approximations. These effective rate coefficients can be used to solve the steady state and time dependent plasma problem. We compare the results of plasma modeling from the two different methods and compare to a complete solution using the full set of coupled rate equations for both steady state and time dependent plasmas. (author)