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PM4Stell: A prototype permanent magnet stellarator structure

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 i...

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Published in:	Physics of plasmas 2022-11, Vol.29 (11)
Main Authors:	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
Format:	Article
Language:	English
Subjects:	Cubes Error correction Field coils Permanent magnets Plasma physics Prototypes Stellarators Technology assessment
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container_issue	11
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container_title	Physics of plasmas
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creator	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
description	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.
doi_str_mv	10.1063/5.0102754
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source	American Institute of Physics (AIP) Publications; American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list)
subjects	Cubes Error correction Field coils Permanent magnets Plasma physics Prototypes Stellarators Technology assessment
title	PM4Stell: A prototype permanent magnet stellarator structure
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