PM4Stell: A prototype permanent magnet stellarator structure

Zhu, Caoxiang; Hammond, Kenneth; Rutkowski, Adam; Corrigan, Keith; Bishop, Douglas; Brooks, Arthur; Dugan, Peter; Ellis, Robert; Perkins, Luke; Zhai, Yuhu; Chambliss, Amelia; Gates, David; Steward, Dennis; Miller, Craig; Lown, Bob; Mercurio, Robert

doi:10.1063/5.0102754

Title: PM4Stell: A prototype permanent magnet stellarator structure

Journal Article · Thu Nov 03 00:00:00 EDT 2022 · Physics of Plasmas

DOI:https://doi.org/10.1063/5.0102754· OSTI ID:1899105

^[1];

^[1]; Rutkowski, Adam ^[1];

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^[1]; Brooks, Arthur ^[1]; Dugan, Peter ^[1];

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^[1]; Steward, Dennis ^[2];

^[2]; Lown, Bob ^[3];

^[3]

Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
ANSYS, Inc., Canonsburg, PA (United States)
SABR Enterprises, LLC., North Andover, MA (United States)

Permanent magnets provide a possible solution to simplify complicated stellarator coils. A prototype permanent magnet stellarator structure, PM4Stell, has been funded to demonstrate the technical feasibility of using permanent magnets to create the shaping field of a stellarator. Permanent magnets in uniform cubes with three polarization directions will be carefully placed to generate the required magnetic field for a National Compact Stellarator eXperiment-like equilibrium together with planar toroidal field coils. Discrete magnets will be glued together and inserted into a “post-office-box-like” supporting structure. Electromagnetic and structural analyses have been done to validate the design. Error field correction magnets will be used to shim possible error fields. The design efforts of the prototype permanent magnet stellarator structure are discussed.

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Research Organization:: Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-09CH11466

OSTI ID:: 1899105

Alternate ID(s):: OSTI ID: 1896912

Journal Information:: Physics of Plasmas, Vol. 29, Issue 11; Conference: 63.Annual Meeting of the APS Division of Plasma Physics, Pittsburgh, PA (United States), 8-12 Nov 2021; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Computational optimization
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Engineering science
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Title: PM4Stell: A prototype permanent magnet stellarator structure

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