Why Compact Tori For Fusion?
Journal Of Fusion Energy
A compact torus (CT) has a toroidal magnetic and plasma geometry, but is contained within a simply-connected vacuum vessel such as a cylinder. Spheromaks and field-reversed configurations fall into this category. Compact tori are translatable and have a high engineering beta. The primary benefit of CTs for fusion is the absence of toroidal field and Ohmic Heating coils and the many problems brought on by them. Studying fusion-relevant plasma in simply-connected geometries affords the world fusion program both physics and technology opportunities not found in other configurations. This paper outlines the technology and physics opportunities of compact tori, and presents a cost model based on geometry for comparison with less compact configurations.
S. Woodruff, Michael R. Brown, E. B. Hooper, R. Milroy, and M. J. Schaffer.
"Why Compact Tori For Fusion?".
Journal Of Fusion Energy.