Collision Integrals of High-Temperature Air Species

Collision integrals (transport cross sections ) of air species in the temperature range 50 ‐100,000 K have been calculated by using experimental and theoretical informations on potential energy curves and cross sections. The results for the different interactions (neutral‐neutral, neutral ‐parent ion, electron ‐neutral) have been compared with old and recent calculations obtaining, in general, a satisfactory agreement. Finally analytical forms for e tting and interpolating the present numerical results are reported.