Abstract
The dynamic stabilization method was proposed in Part I and Part II of this paper in order to achieve high current density in large scale magnets. To demonstrate the feasibility, a model coil with a stored energy of 25MJ and a central field of 8T was designed at an overall current density of 100A/mm2: The conductor was 1mm×50mm, Cu-Nb3Sn-Cu tape and it was needed to grade the thickness of Nb3Sn to meet the requirement of dynamic stability. These procedures clarified the design criteria of dynamically stabilized magnets. The quench analysis was performed to identify problems peculiar to high current density magnets. The maximum temperature rise was found to be relatively high, 420K. The protection by external resistor is enough to suppress the temperature rise down to 100K. These results indicate that the dynamically stabilized tape conductor can attain high overall current density in large scale magnets and that the method is applicable for emerging materials.
