22-27 September 2019
Hyatt Regency Hotel Vancouver
Canada/Pacific timezone

Tue-Af-Po2.15-04 [15]: Redesign and Strength Check of 40T Hybrid Magnet Thermal Shield

24 Sep 2019, 14:00
2h
Level 2 Posters 1

Level 2 Posters 1

Speaker

Dr Zhen Fang (Chinese High Magnetic Field Laboratory ,Chinese Academy of Science)

Description

The 40T hybrid magnet in Hefei consisting of a 10 T superconducting outsert and a 30 T resistive insert magnet has passed the national evaluation in 2017 and has been running steadily up to now. The thermal shield cooled by liquid nitrogen sandwiched by the superconducting magnet and the water-cooled resistive magnet is the important component of the hybrid magnet. During the debugging phase of the hybrid magnet in 2016, a trip of the water-cooled resistive magnet triggered the quench protection of the superconducting magnet, resulting in expansion and rupture of the oxygen-free copper thermal shield. In this paper, we will reveal the reason of damage of the oxygen-free copper thermal shield via the finite element simulation analysis. We also introduce a new design scheme of the thermal shield adopted by the 40 T hybrid magnet which is currently operating steadily.

Primary author

Dr Zhen Fang (Chinese High Magnetic Field Laboratory ,Chinese Academy of Science)

Co-authors

Prof. Guangli Kuang (Chinese High Magnetic Field Laboratory ,Chinese Academy of Science) Dr Pengcheng Huang (Chinese High Magnetic Field Laboratory ,Chinese Academy of Science) Prof. Wenge Chen (Chinese High Magnetic Field Laboratory ,Chinese Academy of Science)

Presentation Materials