Bulletin of the American Physical Society
64th Annual Meeting of the APS Division of Plasma Physics
Volume 67, Number 15
Monday–Friday, October 17–21, 2022; Spokane, Washington
Session NP11: Poster Session V: In-Person, Hall A (9:30-11:00am) and Virtual Poster Presentations (11:15am-12:30pm)
MFE: Stellerators
HED: High Energy Density
BEAMS: Short Pulse Laser Plasmas
HED: Short Pulse Laser Plasma
SPACE: Space Plasmas
9:30 AM - 12:30 PM
Wednesday, October 19, 2022
Room: Exhibit Hall A and Online
Abstract: NP11.00021 : Construction of MUSE Permanent Magnet Stellarator and Error Field Measurement Using Electron Beam Mapping*
Presenter:
Xu Chu
(Princeton University)
Authors:
Xu Chu
(Princeton University)
Tony Qian
(Princeton Plasma Physics Laboratory)
Michael Zarnstroff
(Princeton Plasma Physics Laboratory)
Bruce Berlinger
(Princeton Plasma Physics Laboratory)
Christopher Pagano
(Princeton Plasma Physics Laboratory)
Djin Patch
(Princeton Plasma Physics Laboratory)
Dominic Seidita
(Purdue University)
Mohammed Haque
(City University of New York)
Arturo Dominguez
(Princeton Plasma Physics Laboratory)
MUSE is the world's first quasi-axisymmetric stellarator constructed with planar circular coils and permanent magnets. The components manufacturing, sub-systems tests, quarter assembly and vacuum vessel assembly have been completed over the past year. Detailed procedures have been developed in order to complete MUSE successfully. Final assembly is underway.
Electron beam mapping of the flux surfaces will be conducted after the assembly to study error fields and adjust the position of the permanent magnets to minimize errors. By comparing the shape of the flux surfaces with the numerical models, the permeability of the permanent magnets will be calibrated and the position of the PM(permanent magnet) holders will be adjusted to maximize the agreement. A subsequent study of the island width on 2/10, 2/11 and 2/12 island chains on configurations with lower coil current will be conducted to quantify the field errors.
*This work is supported by the U.S. Departement of Energy under contract number DE-AC02-09CH11466.
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