Abstract
Electron densities and mean collision cross sections are deduced from measurements of the propagation constant for microwaves in a plasma. From the electron collision cross-section measurements, inferences are drawn concerning the slope of the cross-section electron velocity curve. The measurements are compared with those made by electron beam techniques. From the electron density measurements the recombination coefficient of hydrogen as a function of pressure is obtained. These data are interpreted on the basis of dissociative and ion-ion recombination.