Development and investigation of one-layer quasi-force-free magnets

Abstract

Numerical calculation and experimental investigation of deformations in the one-layer quasi-force-free magnet placed inside the diamagnetic shield are carried out in this work. The calculations indicated a distinction of the current distribution in the conductor from one calculated without taking into account a presence of gaps and of the finite thickness of conductors. They allowed to estimate appearing additional stresses and indicated a possibility to reduce them by means of filling the slits with a material with comparatively low modulus of elasticity. Experimental study of small deformations indicated compliance of the calculated and experimental data. Possibility of correction of equilibrium state of the quasi-force-free winding with the additional axial current is shown.