Unified theory of the electron temperature in positive columns

The electron temperature was calculated by renewed theory in the cylindrical positive column using the boundary velocity of charged particles defined by Friedman, et al. This theory is extended to cases involving the effect of metastable atoms' ionization and of a binarymixtured gas. The electron temperature calculated based upon this theory give characteristics valid from lower to higher pressure ranges. For example, the calculations were carried out for Ne and He gases, which results may be useful for an investigation of the He-Ne laser plasmas.