Electronic Recombination ofHe2+

A new afterglow analysis technique has been developed involving no assumption about the functional dependence (or lack of dependence) of the recombination rate coefficient on experimental parameters such as electron density or temperature. Explicit account is taken of the measured electron source term due to ionization during the afterglow. Preliminary results obtained at 295°K neutral temperature, at pressures from 20 to 30 Torr, at electron temperatures from 295 to 500°K, and over a limited range of electron densities near ${10}^{11}$ ${\mathrm{cm}}^{-3\mathrm{}}$ are in satisfactory agreement with collisional radiative recombination theories.