Stray magnetic field produced by ITER tokamak complex

Abstract

The stray magnetic field produced by the ITER tokamak complex, including the effect of ferromagnetic materials in building structures, has been studied. The results obtained show that the magnetic fields produced by the tokamak can be significantly modified by the ferromagnetic structures of the building in areas distant from the tokamak. It is shown that stray fields produced by the ITER tokamak complex can exceed 100 Gs in areas where service staff are possibly located. Such a level of stray fields should be in agreement with the medical and safety engineering limits as well as to ensure the normal operations of equipment sensitive to magnetic fields. The results are presented in the form of a set of field maps, which can be widely used for practical applications.