Coherent gyromagnetic emission

The properties of interference radiation in coherent gyrotron emission are examined. The idea of interference is analytically explained, and the kinematic requirements for it to occur are identified. The possibility of absorption or maser action is excluded. The dependence of the interference energy on the particle velocities is shown, and the current associated with each particle is presented. These describe the incoherent radiation of each particle. The remaining term is a cross-product between the two particles on the radiation. The results suggest that taking account of the dispersion of particles in bunches emitting coherent curvature radiation permits the expectation that the spectral properties and angular characteristics of the resulting radiation will differ from the predictions of incoherent curvature emission theory.