Wire dynamics simulation of impregnated superconducting magnet

The wire dynamics simulation has been performed to evaluate the stability of the impregnated superconducting magnet. The relationship between quench current and the impregnating material failure in the magnet was studied. In the impregnated superconducting magnet it is considered that the heating is induced by the cracking of the impregnating material or by the friction between wires or wires and bobbin after the cracking. The wire dynamics simulation can clarify the behavior of a superconducting coil by solving the equation of motion for each wire. It was found that just after the impregnating material failure the heating is induced in the place where the cracking of the impregnating material was introduced and resulted in quench. The result suggests that the impregnating material failure is closely related to the stability of superconducting magnet.