“…Various SMTs are operated worldwide, e. g. BETA at the Institute for Plasma Research in Bath, India [17], BLAA-MANN at the University of Tromsø, Norway [18], TORIX at theÉcole Polytechnique, Palaiseau, France [19], THORELLO at the University of Milano, Italy [20], and TEDDI at the University of Kiel, Germany [21]. Their purely toroidal magnetic field configuration lies between those of linear machines and the nested magnetic field lines of fusion devices.…”