Development of a 12 T Conduction-Cooled Split-Pair Magnet With Crossing Warm Bore

A 12 T conduction-cooled split-pair magnet for material processing applications, featuring a crossing warm bore with a diameter of 101 mm in the vertical direction and 51 mm in the horizontal direction, has been designed and fabricated. The split-pair magnet has two Nb 3 Sn coils and three NbTi coil...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2025-01, Vol.35 (1), p.1-8
Main Authors: Chen, Shunzhong, Sun, Wanshuo, Xu, Ce, Wang, Hui, Sun, Jinshui, Wang, Yaohui, Dai, Yinming, Cheng, Junsheng, Wang, Qiuliang
Format: Article
Language:English
Subjects:
Boring
Coils
Conduction cooling
Conduction heating
Conduction-cooled
Cooling
crossing warm bore
Cryogenic cooling
Field strength
Horizontal orientation
Inductance
Internal energy
magnet
Magnetic circuits
Magnetic field measurement
Magnetic fields
Nb<named-content xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" content-type="math" xlink:type="simple"> <inline-formula> <tex-math notation="LaTeX"> _3</tex-math> </inline-formula> </named-content>Sn
Protection
quench protection
Quenching
split-pair
Superconducting coils
Superconducting magnets
Superconductivity
Testing
Training
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A 12 T conduction-cooled split-pair magnet for material processing applications, featuring a crossing warm bore with a diameter of 101 mm in the vertical direction and 51 mm in the horizontal direction, has been designed and fabricated. The split-pair magnet has two Nb 3 Sn coils and three NbTi coils symmetrically on each side. It operates at 89.55 A current and generates a center magnetic field strength of 8.78 T and a maximum magnetic field strength of 12 T in the central axis of the crossing warm bore. The magnet's inductance is 505.1 H and its stored energy is 2.03 MJ. A passive protection circuit composed of coil subdivision and quench initiating heater has been selected to protect the magnet from damage caused by quenching. The magnet is integrated into a conduction-cooled cryostat and directly cooled by two Gifford W E and McMahon H O (GM) cryocoolers with a 1.8 W cooling power in the second stage. The detailed electromagnetic design, quench protection design, cryostat design, fabrication, and test of this 12 T split-pair magnet will be presented in this article.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2024.3497178