A method and apparatus for damage monitoring positioning of a tokamak fusion reactor

Abstract

The application discloses a damage monitoring positioning method and device for a tokamak fusion reactor, and relates to the technical field of damage monitoring. The method comprises the following steps: winding at least one optical fiber sensitive to ionizing radiation on a surface to be monitored of a tokamak torus, so that the optical fiber is arranged along the toroidal direction to form a toroidal optical fiber path and is arranged along the poloidal direction to form a poloidal optical fiber path; injecting a probe light signal into an input end of the optical fiber; collecting a transmitted light signal of an output end of the optical fiber, and monitoring the light intensity attenuation of the transmitted light signal in real time; judging whether the surface to be monitored is damaged by escaping electron bombardment according to whether the light intensity attenuation exceeds a preset threshold; and when it is judged that the damage occurs, determining the damage position according to the toroidal position information corresponding to the toroidal optical fiber path where the light intensity attenuation occurs and the poloidal position information corresponding to the poloidal optical fiber path. The above scheme greatly reduces the system cost and the laying difficulty.

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