Simpler optimized stellarators using permanent magnets

Nuclear Fushion

article

T. Qian¹  M. Zarnstorff¹  D. Bishop¹  A. Chamblis¹  A. Dominguez¹  C. Pagano¹  D. Patch¹  C. Zhu¹ 

[1] Princeton Plasma Physics Laboratory, 100 Stellarator Road, Princeton

关键词: magnetic confinement fusion;    stellarator;    permanent magnet;    quasi-symmetry;   

DOI  :  10.1088/1741-4326/ac6c99

来源: Institute of Physics Publishing Ltd.

【 摘 要 】

A first-of-a-kind optimized stellarator for confining plasma has been designed and is being constructed with planar circular coils and permanent magnets composed of identical elements. The equilibrium is optimized to be quasi-axisymmetric for good particle confinement. The combination of permanent magnets and planar coils is significantly simpler to construct than fabricating three-dimensionally shaped coils, yet they are able to produce lower helical magnetic ripple than existing devices by two orders of magnitude in {{epsilon}}_{ext{eff}}^{3/2} , a characteristic neoclassical transport metric.

【 授权许可】

Unknown