Abstract
Sources of fusion neutrons with an energy of about 10 MeV can be a driver in hybrid fusion–fission reactor. They can be used for the disposal of radioactive wastes involved in the closure of the nuclear fuel cycle. Currently, the projects of such systems rely on the use of the D–T reaction and the production of tritium in the blanket. In terms of availability of fuel components, the D–D reaction is attractive. The energy of the neutrons produced in the D–D reaction directly is not high enough, but fast neutrons of 14 MeV are produced by the burning of the tritium produced in the D–D reactions. The possibilities of using a D–D plasma confined in a magnetic trap to generate fast neutrons are analyzed. To increase the reaction rate, a powerful heating by injection of neutral deuterium atoms is considered. Under such conditions, a significant population of fast deuterons is maintained. The requirements on the parameters of the plasma and the magnetic trap are discussed to present the possible concept of a fusion neutron source based on deuterium plasma.
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