Energy balance in a two-temperature deuterium plasma

The energy transfer between the electron and deuteron components of a hot fully ionized deuterium plasma is studied under the following circumstances: (a) the prevailing mechanism is the elastic Coulombian scattering, (b) each charged particle is screened by the surrounding particles of opposite charge at the so-called 'Debye radius', (c) Born approximation is used for estimating the collision cross-section, (d) local thermodynamic equilibrium and Maxwell-like velocity distribution do hold separately for electrons and deuterons. The rate of energy transfer is finally given as an analytical expression in terms of temperatures, particle densities and atomic constants.