Simpler optimized stellarators using permanent magnets

T. Qian; M. Zarnstorff; D. Bishop; A. Chamblis; A. Dominguez; C. Pagano; D. Patch; C. Zhu

doi:10.1088/1741-4326/ac6c99

Simpler optimized stellarators using permanent magnets

T. Qian, M. Zarnstorff, D. Bishop, A. Chamblis, A. Dominguez, C. Pagano, D. Patch, C. Zhu

PPPL Engineering

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

A first-of-a-kind optimized stellarator for confining plasma has been designed and is being constructed with planar circular coils and permanent magnets composed of identical elements. The equilibrium is optimized to be quasi-axisymmetric for good particle confinement. The combination of permanent magnets and planar coils is significantly simpler to construct than fabricating three-dimensionally shaped coils, yet they are able to produce lower helical magnetic ripple than existing devices by two orders of magnitude in µeff3/2, a characteristic neoclassical transport metric.

Original language	English (US)
Article number	084001
Journal	Nuclear Fusion
Volume	62
Issue number	8
DOIs	https://doi.org/10.1088/1741-4326/ac6c99
State	Published - Aug 2022

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

Keywords

magnetic confinement fusion
permanent magnet
quasi-symmetry
stellarator

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10.1088/1741-4326/ac6c99

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title = "Simpler optimized stellarators using permanent magnets",

abstract = "A first-of-a-kind optimized stellarator for confining plasma has been designed and is being constructed with planar circular coils and permanent magnets composed of identical elements. The equilibrium is optimized to be quasi-axisymmetric for good particle confinement. The combination of permanent magnets and planar coils is significantly simpler to construct than fabricating three-dimensionally shaped coils, yet they are able to produce lower helical magnetic ripple than existing devices by two orders of magnitude in µeff3/2, a characteristic neoclassical transport metric.",

keywords = "magnetic confinement fusion, permanent magnet, quasi-symmetry, stellarator",

author = "T. Qian and M. Zarnstorff and D. Bishop and A. Chamblis and A. Dominguez and C. Pagano and D. Patch and C. Zhu",

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doi = "10.1088/1741-4326/ac6c99",

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T1 - Simpler optimized stellarators using permanent magnets

AU - Qian, T.

AU - Zarnstorff, M.

AU - Bishop, D.

AU - Chamblis, A.

AU - Dominguez, A.

AU - Pagano, C.

AU - Patch, D.

AU - Zhu, C.

PY - 2022/8

Y1 - 2022/8

N2 - A first-of-a-kind optimized stellarator for confining plasma has been designed and is being constructed with planar circular coils and permanent magnets composed of identical elements. The equilibrium is optimized to be quasi-axisymmetric for good particle confinement. The combination of permanent magnets and planar coils is significantly simpler to construct than fabricating three-dimensionally shaped coils, yet they are able to produce lower helical magnetic ripple than existing devices by two orders of magnitude in µeff3/2, a characteristic neoclassical transport metric.

AB - A first-of-a-kind optimized stellarator for confining plasma has been designed and is being constructed with planar circular coils and permanent magnets composed of identical elements. The equilibrium is optimized to be quasi-axisymmetric for good particle confinement. The combination of permanent magnets and planar coils is significantly simpler to construct than fabricating three-dimensionally shaped coils, yet they are able to produce lower helical magnetic ripple than existing devices by two orders of magnitude in µeff3/2, a characteristic neoclassical transport metric.

KW - magnetic confinement fusion

KW - permanent magnet

KW - quasi-symmetry

KW - stellarator

UR - https://www.scopus.com/pages/publications/85130817982

UR - https://www.scopus.com/inward/citedby.url?scp=85130817982&partnerID=8YFLogxK

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AN - SCOPUS:85130817982

SN - 0029-5515

VL - 62

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 8

M1 - 084001

ER -

Simpler optimized stellarators using permanent magnets

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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