The new installation at the Nijmegen High Field Magnet Laboratory

Abstract

For research in the highest continuous and pulsed magnetic fields large, complex and powerful installations are needed. A new 20 MW installation has been built at the University of Nijmegen. The ultra-low ripple power converter, delivering 40 kA at up to 500 V, provides the capability to perform experiments up to 33 T with resistive magnets and up to 40 T with the hybrid magnet system still under construction. The cooling installation is designed to allow uninterrupted operation at maximum power for up to 3 h. Typically during experiments, however, the magnetic field is slowly varied or held constant for a few minutes, and swept between zero and some high field strength, and then the cooling plant does not pose limits to the operation. When much higher fields are required, there is the option to go to pulsed magnetic fields with duration in the tens of milliseconds. (C) 2004 Elsevier B.V. All rights reserved.