Klynotron with using the open resonator and symmetric conical corrugated mirrors – goratron

Abstract

А further development of the radial klynoorotron idea – klynotron with symmetric conical radial corrugated resonator mirrors, is presented in the article. Strong coupling volume and surface resonance fields in the double conical mirrors in such a device is formed due to which the synchronous harmonic field is in the entire intermirror space. All saying above makes it possible to use a wide electronic flow. The conical mirror geometry provides a klynotron effect. As a result, not only the permissible device power is increased, but also its efficiency in comparison with a conventional radial klynoorotron. The article presents the calculating results of the Goratron at b0 = 0.51. The solution of the two-dimensional boundary value problem for the potential
V(r, z) = rBj(r, z), which determines Goratron resonator axisymmetric oscillation Em01, was carried out by standard packages for solving general partial differential equations using finite elements. The distribution analysis Er(r, z), Ez(r, z), Bj(r, z) shows that the field periodic component exists in the entire space between the comb mirrors. Given feature allows to use a wide (up to l/4) electron flow. Goratron electron flow model
contains 16 layers along z, the equations of motion were relativistic. The electronic efficiency averaged over all layers is more than 30 %, which is 1.5 times higher than that obtained in the radial klynotron efficiency calculations.