Contribution of Electron-Electron Collisions to the Emission of Bremsstrahlung by a Plasma

A new model for treating plasma radiation processes in plasmas is extended to the problem of bremsstrahlung emission from electron-electron collisions. The spectra of longitudinal and transverse waves, including dielectric effects, are derived to lowest nonvanishing (quadrupole) order. A resonance in the spectrum of transverse waves near ω = 2ωp, the first harmonic of the electron plasma frequency, is noted. The high-frequency form of the transverse spectrum is approximately evaluated and found to be relativistically small by comparison with the dominant electron-ion bremsstrahlung. Finite wavelength corrections to the radiation generated by electron-ion collisions are also discussed.