A neutron source device based on deuterium-tritium mixed beam

Abstract

The invention provides a neutron source facility based on a deuterium-tritium mixed beam. The neutron source facility comprises an ion implantation system, a target system and a sputtering source, wherein the ion implantation system is used for generating a deuterium-tritium mixed ion beam which is used for bombarding the target system, the target system comprises a target disk and a target base, a surface, facing to the ion implantation system, of the target disk comprises a hydrogen storage film, and the sputtering source is used for supplementing a hydrogen storage film feedstock to the target disk. In a process of bombarding the target system by the deuterium-tritium mixed ion beam, part of deuterium or tritium is continuously stored in the hydrogen storage film of the target system, and a subsequent deuterium-tritium mixed ion beam acts with the deuterium or tritium stored in the hydrogen storage film to generate neutrons when the subsequent deuterium-tritium mixed ion beam bombards a target; the condition in an experiment process of the traditional method that the yield of the neutrons is lowered continuously due to the fact that the content of tritium in a tritium target gradually decreases is avoided, and the self-sustaining of tritium is achieved; and meanwhile, a target material element is continuously supplemented to the target system by using the sputtering source, and the quality of the hydrogen storage film of the target disk is improved, so that the hydrogen storage capacity of the target disk is improved, then, the life of the target system is prolonged, and sustained high-flux neutrons can be obtained.

Description

technical field [0001] The invention belongs to the field of nuclear technology and application, in particular to a neutron source device based on a deuterium-tritium mixed beam. Background technique [0002] The devices that generate neutrons by means of nuclear reactions and provide them are called neutron sources, including isotope neutron sources, accelerator neutron sources and reactor neutron sources. Among them, the accelerator neutron source is to use the ions of a certain energy generated by the accelerator to interact with the target, and generate neutrons through D-D or D-T fusion reactions. Accelerator neutron sources are widely used in physics, engineering, medicine, nuclear weapons, oil exploration, biology, chemistry, nuclear power and other industries. For example, it can be applied to basic research such as neutron radiation shielding and protection, material activation and radiation damage, and component neutronics performance, as well as nuclear medicine ...

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Problems solved by technology

[0004] In view of this, the present invention provides a neutron source device based on a deuterium-tritium mixed beam to solve the problem that the neutron source in the prior art has a low neutron current intensity, a short lifespan, and cannot obtain continuous high flux neutron problem

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