Incoherent Microwave Radiation from Plasmas

Abstract
A study is made of the incoherent radiation from an isotropic, quiescent plasma of a low degree of ionization. Three cases are treated theoretically: the transparent plasma, the semiopaque plasma, and the opaque plasma. Radiation from positive columns of dc glow discharges in helium and hydrogen for the three cases treated theoretically are studied experimentally at 3000 Mc/sec, and good agreement is obtained between theory and experiment.