MT29 Abstracts and Technical Program

Fri-Af-Po.01-07: Investigation on the feasibility of quench detection methods with fiber bragg grating sensors in bending Bi-2223/Ag tapes

4 Jul 2025, 14:00

2h

Ensemble Ballroom, Level 2

Poster Fri-Af-Po.01 - Quench Detection and Protection II

Speaker

Mr Zhiyong Yan (Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan, China)

Description

Tokamak controlled nuclear fusion emerges as a promising solution to the current global energy predicament. The solenoid coil, a pivotal component, plays a crucial role in confining plasma within the Tokamak device. Bi-2223/Ag high temperature superconducting tapes, with a high critical temperature and excellent machinability, are favored material for fabricating solenoid coils. Nevertheless, during the coil winding process, the tape's performance is inhibited by bending and intense electromagnetic interference, which may even lead to quench damage. These factors also impede the operation of electrical sensors. Fiber Bragg Grating (FBG) sensors, featuring robust electromagnetic interference resistance and convenient multi-channel integration capabilities, present a novel option for measuring quench characteristics of Bi-2223/Ag.