TY - JOUR
T1 - Stellarators with Permanent Magnets
AU - Helander, P.
AU - Drevlak, M.
AU - Zarnstorff, M.
AU - Cowley, S. C.
N1 - Publisher Copyright:
© 2020 authors.
PY - 2020/3/6
Y1 - 2020/3/6
N2 - It is shown that the magnetic-field coils of a stellarator can, at least in principle, be substantially simplified by the use of permanent magnets. Such magnets cannot create toroidal magnetic flux, but they can be used to shape the plasma and thus to create poloidal flux and rotational transform, thereby easing the requirements on the magnetic-field coils. As an example, a quasiaxisymmetric stellarator configuration is constructed with only 8 circular coils (all identical) and permanent magnets.
AB - It is shown that the magnetic-field coils of a stellarator can, at least in principle, be substantially simplified by the use of permanent magnets. Such magnets cannot create toroidal magnetic flux, but they can be used to shape the plasma and thus to create poloidal flux and rotational transform, thereby easing the requirements on the magnetic-field coils. As an example, a quasiaxisymmetric stellarator configuration is constructed with only 8 circular coils (all identical) and permanent magnets.
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U2 - 10.1103/PhysRevLett.124.095001
DO - 10.1103/PhysRevLett.124.095001
M3 - Article
C2 - 32202856
AN - SCOPUS:85082283666
SN - 0031-9007
VL - 124
JO - Physical review letters
JF - Physical review letters
IS - 9
M1 - 095001
ER -