The GraF instrument for imaging spectroscopy with the adaptive optics

The GraF instrument using a Fabry-Perot interferometer cross-dispersed with a grating was one of the first integral-field and long-slit spectrographs built for and used with an adaptive optics system. We describe its concept, design, optimal observational procedures and the measured performances. The instrument was used in 1997-2001 at the ESO 3.6 m telescope equipped with ADONIS adaptive optics and SHARPII+ camera. The operating spectral range was 1.2 - 2.5 microns. We used the spectral resolution from 500 to 10 000 combined with the angular resolution of 0.1" - 0.2". The quality of GraF data is illustrated by the integral field spectroscopy of the complex 0.9" x 0.9" central region of Eta Car in the 1.7 microns spectral range at the limit of spectral and angular resolutions.Comment: 36 pages, 12 figures, accepted by Ex

The Grenoble high magnetic field laboratory as a user facility

The Grenoble High Magnetic Field Laboratory is one of the leading laboratories pursuing research in the highest static magnetic fields technically feasible. Located in Grenoble, it is a French-German laboratory, jointly funded by the Max Planck Institut fur Festkorperforschung, in Stuttgart and the Centre National de la Recherche Scientifique. Five years ago, the laboratory has undertaken the development of 20 MW magnets. Two of them are now in operation and yield steady magnetic fields up to 30 T. The facility delivers around 5000 h of magnet time every year. (C) 2004 Elsevier B.V. All rights reserved

The Grenoble High Magnetic Field Laboratory as a USER FACILITY

The Grenoble High Magnetic Field Laboratory (GHMFL), run jointly by the Centre National de la Recherche Scientifique (C.N.R.S, France) and the Max-Planck Gesellschaft (MPG, Germany) is a leading laboratory pursuing research in the highest static magnetic fields technically feasible. The laboratory maintains strong in-house research activities and partly operates as a user facility for qualified external researchers. It has developed highly sophisticated instrumentation for specific use under high magnetic fields, including transport, magnetization, visible and infrared optical measurements at low temperatures and/or high pressures, EPR and NMR investigations in high magnetic fields. The laboratory delivers around 5000 hours of magnet time per year. Access for users to the high magnetic field facility is supported by the European Union, in the framework of the Human Potential Program: "Transnational Access to Major Research Infrastructures." We give an overview of the technical aspects of the facility and of the laboratory activities as a facility over the last years. The general organization of the user community and repartition between countries will be also reviewed