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Magnetic Configuration and Modular Coil Design for the Chinese First Quasi-Axisymmetric Stellarator
- Source :
- Plasma and Fusion Research. 13:3405067-3405067
- Publication Year :
- 2018
- Publisher :
- Japan Society of Plasma Science and Nuclear Fusion Research, 2018.
-
Abstract
- The Chinese First Quasi-axisymmetric Stellarator (CFQS) is a joint project of international collaboration. It is designed and fabricated by Southwest Jiaotong University (SWJTU) in China and National Institute for Fusion Science (NIFS) in Japan. In this work, a plasma boundary and modular-coil system for the CFQS have been designed and optimized via scan of the magnetic configurations with various aspect ratios. The present target parameters of the CFQS are as follows: toroidal periodic number, aspect ratio, magnetic field strength and major radius are 2, 4.0, 1.0 T, and 1.0 m, respectively. The VMEC and NESCOIL codes are employed to obtain the optimum coil design via minimizing the normal component of the magnetic field on the target plasma boundary surface generated by the modular coils. In order to estimate the accuracy of the filament coils, the shape of the plasma boundary, rotational transform, depth of magnetic well and main Fourier components of magnetic field strength produced by the modular-coil system are compared with the target plasma boundary, rotational transform, depth of magnetic well and main Fourier components, correspondingly. This comparison between properties of the coil induced configuration and the target configuration shows a good agreement.
- Subjects :
- plasma boundary
Physics
quasi-axisymmetric stellarator
business.industry
Configuration optimization
modular coil
configuration optimization
Rotational symmetry
Mechanics
Modular design
Condensed Matter Physics
01 natural sciences
010305 fluids & plasmas
law.invention
law
Electromagnetic coil
0103 physical sciences
010306 general physics
business
Stellarator
Subjects
Details
- ISSN :
- 18806821
- Volume :
- 13
- Database :
- OpenAIRE
- Journal :
- Plasma and Fusion Research
- Accession number :
- edsair.doi.dedup.....4189a03903b5c1a1fac26602e65a2ac0