Spherical Torus: An Approach to Compact Fusion at Low Field - Initial Ignition Assessments

Abstract

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Features of spherical torus plasmas

“…Assuming these advanced current drive schemes, ignition spherical tori are estimated to be compact (R = 1.0 m to 1.6 m) and to operate at low fields (/fo = 3 T to 2 T). 18 In the case of small, low-field, short-pulse experiments using pulsed high-current-density coils, full inductive current startup should remain feasible.…”