Page 49 - Fundamentals of Magnetic Thermonuclear Reactor Design
P. 49
Facilities With Magnetic Plasma Confinement Chapter | 2 31
FIGURE 2.14 The LHD hall (above) and the magnet system and the vacuum vessel (below).
(Courtesy of LHD Experimental Board).
field distortions exceeding a tolerance range, for which corrections can be made
using auxiliary and/or correction coils. In the W7-X stellarator, the ratio be-
tween the root of the sum of squares of error field main harmonic amplitudes to
−4
the nominal field must be within 2 × 10 .
