August 27, 2017 to September 1, 2017
RAI Congress Center, Amsterdam, The Netherlands
Europe/Amsterdam timezone

Construction and test of the NHMFL 32 T superconducting magnet

Aug 29, 2017, 1:15 PM
1h 45m
Posters Area

Posters Area

Poster Presentation of 1h45m C1 - Superconducting and Hybrid High-Field Magnets Tue-Af-Po2.04


Dr H.W. Weijers (NHMFL/FSU)


The 32 T project aims to combine a 15 T LTS magnet with two REBCO double pancake coils generating 17 T to create a 32 T user magnet for the MilliKelvin facility at the NHMFL. Both coil sets operate at 4.2 K using two separate power supplies. First, the construction of the REBCO coils and integration with the LTS magnet and cryostat is briefly described. Then, the cool down and performance characteristics of the complete magnet are presented. The effect of screening currents at 77 K and 4.2 K in the REBCO coils is described. Operating modes at 4.2 K include ramping the REBCO and LTS coils separately and synchronized one-hour ramps to full field. A deliberate quench of the REBCO coils using the embedded quench heaters is included in the test protocol. Data from voltage taps, Hall effect and temperature sensors are presented to quantify the performance of the magnet and the magnetic field it generates.
Acknowledgement: This work was supported in part by the U.S. National Science Foundation under Grants No. DMR-0654118, DMR-1157490, DMR-0923070 and the State of Florida.

Submitters Country USA

Primary author

Dr H.W. Weijers (NHMFL/FSU)


Dr D.V. Abraimov (NHMFL/FSU) S.R. Gundlach (NHMFL/FSU) A.V. Gavrilin (NHMFL/FSU) A.J. Voran (NHMFL/FSU) W.R. Sheppard (NHMFL/FSU) Dr D.K. Hilton (NHMFL/FSU) T.A. Painter (NHMFL/FSU) T.P. Murphy (NHMFL/FSU) P.D. Noyes (NHMFL/FSU) Y.L. Viouchkov (NHMFL/FSU) B. Jarvis (NHMFL/FSU) Mr W.D. Markiewicz (NHMFL/FSU)

Presentation materials