Abstract
The COMPASS-U tokamak (R = 0.86 m, a = 0.28 m, n ALMOST EQUAL TO (1.5-2.5) x 10^20 m^-3 , B0 = 5 T) is being designed at the Institute of Plasma Physics of Czech Academy of Sciences in Prague. A wide range of plasma shapes (elongation κ up to 1.8 and triangularity up to 0.6) will be explored.
This paper presents methods used for calculation of plasma equilibria. Furthermore, it is concerned with the design of poloidal field coils for the COMPASS-U.
It explains the reasons for moving of the poloidal field coils position inside the toroidal field coils with respect to the original COMPASS-U design, and it proposes a method to evaluate heating stress of the coils. The accessibility of the planned high-performance scenario is shown in the current design of poloidal field coils.