A new 1-5 mm high-resolution camera dedicated to the ESO adaptive optics system ADONIS has been developed as a collaborative project of Observatoire de Paris-Meudon and Observatoire de Grenoble, under ESO contract. Since this camera has been designed to correctly sample the diffraction, two focal plate scales are available: 36 mas pixel Ϫ1 for the 1-2.5 mm range and 100 mas pixel Ϫ1 for the 3-5 mm range, yielding fields of view of and , respectively. Several broadband and narrowband filters are available 4Љ .5 # 4Љ .512Љ .8 # 12Љ .8 as well as two circular variable filters, allowing low spectral resolution ( -120) imagery between 1.2 and R ∼ 60 4.8 mm. This camera is equipped with a HgCdTe/CCD array detector built by the CEA-LETI-LIR 128 # 128 (Grenoble, France). Among its main characteristics, this detector offers a remarkably high storage capacity (more than 10 6 electrons) with a total system readout noise of ≈1000 electrons rms, making it particularly well suited for long integration time imagery in the 3-5 mm range of the near-infrared domain. The measured dark current is 2000 electrons s Ϫ1 pixel Ϫ1 at the regular operating temperature of 77 K, allowing long exposure times at short wavelengths ( mm), where the performances are readout-noise limited. At longer wavelengths ( mm), l ! 3 l 1 3 the performances are background-noise limited. We have estimated the ADONIS ϩ COMIC imaging performances using a method specially dedicated to high angular resolution cameras.
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 µm. 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 ′′ × 0.9 ′′ central region of η Car in the 1.7 µm spectral range at the limit of spectral and angular resolutions.
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 will give researchers' access to 40 T in a 34 mm bore with the help of a resistive magnet that will give 32 T. The second version will provide 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.
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