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Title: Vertically stabilized elongated cross-section tokamak

This invention provides a vertically stabilized, non-circular (minor) cross-section, toroidal plasma column characterized by an external separatrix. To this end, a specific poloidal coil means is added outside a toroidal plasma column containing an endless plasma current in a tokamak to produce a rectangular cross-section plasma column along the equilibrium axis of the plasma column. By elongating the spacing between the poloidal coil means the plasma cross-section is vertically elongated, while maintaining vertical stability, efficiently to increase the poloidal flux in linear proportion to the plasma cross-section height to achieve a much greater plasma volume than could be achieved with the heretofore known round cross-section plasma columns. Also, vertical stability is enhanced over an elliptical cross-section plasma column, and poloidal magnetic divertors are achieved.
  1. (Hopewell, NJ)
Publication Date:
OSTI Identifier:
Report Number(s):
US 4065350
DOE Contract Number:
Resource Type:
Research Org:
Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ
Country of Publication:
United States
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