- 121 - The low temperature plasma composition calculation is begun using an initial electron concentration estimate, C() , to evaluate a, b, c, and p using (6.40) through (6.43). Then d is determined from (6.44), and dj, d3, d4, and d5 from (6.7) through (6.10). C, is calculated from (6.38) and C2 from (6.15-1). The initial value of the mixing ratio is computed as 5 1 .d R(0) = i=l (6.45) C1 2 The calculation is repeated, until the value of Ce is found for which the calculated mixing ratio converges to the specified value, RsHigh Temperature Equations For temperatures above approximately 30,000'K, only the H and H+ hydrogen species are considered to be present in significant quantities. All uranium species are included. The scaled reaction equation for the reaction H Z H+ + e and the uranium reactions are (6.8) and (6.15-1) through (6.15-12). The total particle concentration is 3 13 1 = C + d + I C (6.46) e i=2 i=l