Study of the Problem of a High Induction Magnetic Field Influence on Equipment in the T-15MD Tokamak Hall

In this paper, it is proposed to describe the method of protection from alternating scattered fields outside the discharge chamber generated by installations for magnetic plasma confinement, which includes the T-15MD tokamak. This may damage magnetic field-sensitive diagnostic and process equipment located near the tokamak vacuum chamber. To solve this problem, it is necessary to obtain an accurate map of the magnetic fields during tokamak operation and, based on the maximum permissible values of the magnetic field for sensitive equipment, take measures to protect it - place it at a sufficient distance from the tokamak chamber or shield it from the magnetic field. For a conditional discharge scenario, calculations of the distribution of magnetic field induction in the T-15MD tokamak hall were performed in the COMSOL and DINA codes. A 3-axis sensor has been created to measure magnetic field induction. To clarify the map of magnetic fields, a system has been developed for measuring and analyzing the magnetic field at points of interest in the tokamak hall during the working discharge. Preliminary calculations of protective boxes for the first wall analysis station (WASA) of the T-15MD tokamak have been completed. © 2024 IEEE.