NNBI positive and negative ion beam deflection-ion phagocytosis integrated structure

Abstract

The invention discloses an NNBI positive and negative ion beam deflection-ion phagocytosis integrated structure. The structure comprises a structural frame, a dipolar iron yoke electromagnet and magnetic circuit structure, an ion phagocytosis structure and neutral beam transmission channel, a magnetic circuit structure, a dipolar magnet excitation coil, an excitation coil non-magnetic stainless steel sealing box, an excitation coil hollow winding, an excitation coil excitation wire inlet and outlet sealing pipe, an ion phagocytic organ cooling water inlet main pipe, an ion phagocytic organ cooling water outlet main pipe, a negative ion beam phagocytic front plate, a negative ion beam phagocytic bottom plate, a negative ion beam phagocytic rear plate, a positive ion beam phagocytic front plate, a positive ion beam phagocytic top plate, a positive ion beam phagocytic rear plate, a beam transmission channel right side plate and a beam transmission channel left side plate. The integrated deflection and phagocytosis structure has the beneficial effects that the manufacturing difficulty of the beam deflection and phagocytosis structure with high particle energy is simplified, the beam interception rate of a positive and negative ion deflection magnet and an ion phagocytic organ is reduced, and particularly, the mounting difficulty of a large magnet and the deflection structure is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of high-power neutral beam injection (NNBI) heating based on negative ion sources for ignition and heating of magnetic confinement fusion reactors, and in particular relates to residual negative ion beams that have not been neutralized after the heating beam line has been neutralized, and the neutralization of negative ions Positive ion beam deflection and phagocytosis structures formed during charge exchange. Background technique [0002] Negative ion source-based neutral beam implantation (NNBI) heating and current driving are essential means of ignition and heating for future fusion experimental reactors, engineering reactors, and demonstration reactors. The remaining non-neutralized anion beam after the neutralization of the anion beam, and the positive ion beam generated by the charge exchange during the anion neutralization process must be deflected and swallowed, otherwise the ion beam will be transmi...

AI Technical Summary

Problems solved by technology

The remaining non-neutralized anion beam after the neutralization of the anion beam, and the positive ion beam generated by the charge exchange during the anion neutralization process must be deflected and swallowed, otherwise the ion beam will be transmitted to the NNBI injection drift pipeline along with the neutral beam , the deflection produces impurities under the action of the magnetic confinement magnetic field, which affects the performance of the host magnetic confinement plasma, and increases the thermal load of the injection window drift pipeline, resulting in a decrease in system safety performance

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