Design, Installation, Analysis and Testing of In-Vessel Magnetic Coils on J-TEXT Tokamak

Abstract:

In this paper, a set of 12 in-vessel resonant magnetic perturbation coils are designed for the J-TEXT to investigate the interactions between external resonant magnetic perturbations (RMPs) and a tokamak plasma. Since the coils will be fed with AC 10kA/10kHz and mounted inside the vacuum vessel where the pressure is E-7 Pa and the center-line field reaches 3 T, the coils design adopted and installed is a water-cooled hollow copper conductor insulated with polyamide and cured epoxy resin, and then housed inside a welded stainless steel jacket that forms a vacuum boundary. A solution of how the coils are connected to the power supply outside the vacuum in a limited space is also given in this paper. The primary challenge in the design of these coils is dressing the copper conductor with stainless steel jacket by welding without overheating the polyamide and cured epoxy resin insulator.

• Periodical: Applied Mechanics and Materials (Volume 281)
• Pages: 180-184
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.281.180
• Online since: January 2013
• Authors: Quan Lin Li, Yong Hua Ding, Bo Rao
• Keywords: Design, Installation, In-Vessel Coils

References

[1] Anderson P, Baxi C, Kellman A, et al. 2004, Fusion Science and Technology, 66～68: 791.

[2] Vierle T, Streibl B, Rott M, et al. 2009, Fusion Engineering and Design, 84: (1928).

[3] Rott M, Seidel U, Streibl B, et al. 2009, Fusion Engineering and Design, 84: 1653.

[4] Kim H K, Yang H L, Kim G H, et al. 2009, Fusion Engineering and Design, 84: 1029.

[5] University of TEXAS at Austin. 1976, Proposal for a fusion plasma research facility. Fusion Research Center, Austin.

[6] Applied Superconductivity, IEEE Transactions on, Volume: 22, Issue: 3 4201804.

[7] HAO Changduan, ZHANG Ming, DING Yonghua, et al. 2012, Plasma Science and Technology, 14: 83.

[8] Wang Jinglong. 2010, Finite element analysis and example. Machinery Industry Press, Beijing (in Chinese).