MT29 Abstracts and Technical Program

Sun-Mo-Spe1-02: [Invited] Developing hybrid magnets at CHMFL

6 Jul 2025, 08:20

25m

Momentum D

Invited Oral Sun-Mo-Spe1 - [Special Session] Towards Exceptionally High Magnetic Fields

Speaker

Dr Zhen Fang (High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences)

Description

The High Magnetic Field Laboratory of Chinese Academy of Sciences (CHMFL) aims to develop steady high magnetic field magnets and promote fundamental sciences on the magnets. To develop hybrid magnets is one of its main goals. A hybrid magnet is usually composed of a superconducting magnet and a resistive magnet. The first hybrid magnet in CHMFL was established in 2017, with a resistive magnet insert (Bitter type, bore diameter of 32mm) nested in superconducting coils made of superconducting cable in conduit conductors (CICC). In August of 2022, the hybrid magnet successfully created 45.22T. Since then, many experiments on various research topics have been conducted on the magnet.
A new hybrid magnet is just under design and preliminary technological tests have been undertaken at CHMFL. The magnet is designed to consist of a resistive magnet (28T/Φ32), a high temperature (HT) superconducting CICC coil (14T/Φ800), and a Nb3Sn superconducting CICC coil (13T/Φ1600).
The technology of the 45T hybrid magnet and the preliminary design of the 55T hybrid magnet will be introduced.