Substantial progress in experimental results was demonstrated over the last three years at the GDT facility (a hydrogen prototype of a fusion neutron source) in the Budker Institute: the electron temperature has been increased up to 0.6 keV, and the relative plasma pressure β has exceeded 0.5 in a quasi-stationary regime. These parameters are records for axisymmetric open mirror traps.

The first part of this paper presents the results of numerical simulations for a moderate fusion neutron source based on the achieved GDT experimental data. The second part of the paper is focused on the latest numerical studies of a fusion-fission hybrid system with a mirror-based neutron source.