In plasma confinement devices at low electron temperatures, this process dominates synchrotron radiation as an energy sink.
Wheeler and Lamb calculated the effects of screening on the Bethe-Heitler cross-sections for this process and pair-production, and Landau, Pomeranchuk and Migdal showed that it is reduced at high energies and high densities due to multiple Coulomb scattering. It produces a flat spectrum up to a cutoff frequency, and the formula for its power includes the Gaunt factor. Alternate terms for the inverse of this process include collisional damping and free-free absorption. In plasma confinement devices at low electron temperatures, this process dominates synchrotron radiation as an energy sink. FTP, name this emission by accelerated charged particles of "braking radiation."
Wheeler and Lamb calculated the effects of screening on the Bethe-Heitler cross-sections for this process and pair-production, and Landau, Pomeranchuk and Migdal showed that it is reduced at high energies and high densities due to multiple Coulomb scattering.
bremsstrahlung [accept pair-production before mention in the question; accept free-free emission before "free-free" is read]