Hybrid and Giga-NMR Projects at the Grenoble High Magnetic Field Laboratory

Abstract

The Grenoble High Magnetic Field Laboratory, (GHMFL) is a French German Research Institute funded by the CNRS (Centre National de la Recherche Scientifique, France) and the MPG (Max-Planck Gesellschaft, Germany) which provides high magnetic fields and scientific support to the scientific and technologic international community. It is now setting into operation a large superconducting magnet which delivers 8 T in a 800 mm warm bore diameter. This magnet has been constructed and the first tests were performed in August 2002. Two projects are based on the use of this superconducting magnetic field. The first one give researchers' access to 40 T in a 34 mm bore with the help of a resistive magnet that gives 32 T. The second version provides 23.5 T in a 160 mm room temperature bore with a homogeneity of 1 part per million on a sphere of 1 cubic centimeter. These fields should be available at the laboratory during the year 2004. This paper presents key points of the technical development that were achieved at the laboratory in order to fulfill the high level of specifications of these two projects.