TERMIUM Plus^®

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The Imaging Compton Telescope(COMPTEL) utilizes the Compton Effect and two layers of gamma-ray detectors to reconstruct an image of a gamma-ray source in the energy range 1 to 30 million electron volts(MeV). Gamma rays from active galaxies, radioactive supernova remnants, and diffuse gamma rays from giant molecular clouds can be studied with this instrument.  2, record 1, English, - imaging%20Compton%20telescope

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IBIS [Imager on Board the Integral Satellite] is an instrument for detailed gamma ray imaging on board of the INTEGRAL satellite, the International Gamma-Ray Astrophysics Laboratory. This satellite is dedicated to observe with high spectroscopic and angular resolution celestial gamma ray sources.... Two main instruments(Spectrometer SPI and Imager IBIS) and two monitors([Optical Monitoring Camera(OMC) ] and X-Ray) will observe in parallel celestial objects of all classes.  2, record 2, English, - instrument%20IBIS

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Gamma-ray imaging instrument IBIS.  3, record 2, English, - instrument%20IBIS

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L'instrument IBIS à bord d'INTEGRAL [est] chargé de fournir des images précises du ciel dans un domaine d'énergie allant de 20 keV à 10 MeV. [Cet instrument] est l'héritier direct du télescope SIGMA. Sa conception est en effet très semblable, alliant un masque codé à un ensemble détecteur à base de caméras gamma, le tout étant protégé des rayonnements parasites par des blindages actifs et passifs. L'originalité d'IBIS (Imager on Board the Integral Satellite) réside surtout dans les performances de l'ensemble détecteur qui devrait permettre d'atteindre une sensibilité dix fois meilleure que celle de SIGMA. Pour couvrir un domaine d'énergie de près de 3 ordres de grandeur, il a fallu recourir à l'utilisation de deux caméras. La première, ISGRI (Integral Soft Gamma-Ray Imager), fonctionne à basse énergie (20 keV - 1 MeV). La seconde, PICsIT (PIxellated CsI Telescope), mesure les photons de plus haute énergie (150 keV - 10 MeV).  2, record 2, French, - instrument%20IBIS

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HESSI will also obtain hard X-ray imaging of the Crab Nebula with ~2 arcsec resolution, and monitor a large fraction of the sky to provide, serendipitously, high spectral resolution observations of transient hard X-ray and gamma-ray sources, including accreting black holes, cosmic gamma-ray bursts, and terrestrial bursts from relativistic electron precipitation, aurora, and lightning.  2, record 3, English, - relativistic%20electron

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D'autres mécanismes d'émissions secondaires par collision des électrons relativistes sur des atomes d'hydrogène ou des protons semblent également constituer une autre source d'émission radio de la galaxie. [...] Dans un champ magnétique, un électron relativiste se déplace suivant un mouvement hélicoïdal en spiralant autour des lignes de force. Il en résulte un freinage provoquant le rayonnement synchrotron, qui est aussi une onde électromagnétique.  2, record 3, French, - %C3%A9lectron%20relativiste

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The scientific objective of POLO is to make a complete global survey of the Moon's physical and chemical properties using two spacecraft, one in low-altitude polar orbit about the Moon, the other in high-altitude lunar orbit. The basic payload of the Orbiter would contain X-and gamma-ray spectrometers, a multispectral stereo imaging system, a reflectance spectrometer, an altimeter, a magnetometer and an alpha-particle detector.  3, record 4, English, - polar%20orbiting%20lunar%20observatory

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The ESA scientific mission INTEGRAL(The International Gamma-Ray Astrophysics Laboratory is dedicated to the fine spectroscopy(E/E=500) and fine imaging(angular resolution : 12 arcmin FWHM) of celestial gamma-ray sources in the energy range 15 keV to 10 MeV with concurrent source monitoring in the X-ray(3-35 keV) and optical(V-band, 550 nm) energy ranges.  2, record 5, English, - International%20Gamma%20Ray%20Astrophysics%20Laboratory

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Les préparatifs de la mission INTEGRAL - observatoire international du rayonnement Gamma de l'Agence spatiale européenne (ESA) - et la participation de l'Irlande à ce projet seront présentés lors d'une conférence de presse organisée le 4 octobre prochain (à partir de 12h00) à Dublin par la Royal Irish Academy (RIA - 19 Dawson Street,Dublin 2), Enterprise Ireland et l'ESA.  2, record 5, French, - Observatoire%20international%20du%20rayonnement%20gamma

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A major goal of this research is to develop a rigorous theoretical and experimental framework for objective assessment of image quality and to apply it to the development of practical, clinically useful algorithms for a gamma-ray imaging modality called single-photon emission computed tomography(SPECT).  1, record 6, English, - gamma%2Dray%20imaging

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Much of the research imaging is done on state-of-the-art clinical equipment, including a 0-2T rampable whole-body magnetic resonance system capable of proton imaging(MRI) at 1. 5T and 2T; 31P, 1H and 2H magnetic resonance spectroscopy(MRS) at 1. 5T and 2T; and 18F MRS at 1. 59T; a spiral CT scanner capable of one image per second; a digital radiography system; a bone mineral densitometer; three single photon emission computed tomography(SPECT) nuclear medicine gamma-ray imaging systems; a NaI(Tl) radioisotope gamma-ray spectrometer(for determination of absolute tissue blood flow). ["ADVANCED IMAGING RESEARCH GROUP(AIRG) "]  2, record 7, English, - spiral%20CT%20scanner

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Elscint Announces FDA Clearance for its Spiral CT Scanner, the SeleCT/SP.  3, record 7, English, - spiral%20CT%20scanner

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Pas de grande nouveauté, deux pôles d'intérêt attendus : le scanner spiralé et la cholangio-wirsungo IRM.  1, record 7, French, - scanner%20spiral%C3%A9

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The basic payload of the [Polar Orbiting Lunar Observatory] Orbiter would contain X-and gamma-ray spectrometers, a multispectral stereo imaging system,... and an alpha-particle detector.  1, record 8, English, - stereo%20imaging%20system

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The scientific objective of POLO [Polar Orbiting Lunar Observatory] is to make a complete global survey of the Moon's physical and chemical properties using two spacecraft, one in low-altitude polar orbit about the Moon, the other in high-altitude lunar orbit. The basic payload of the Orbiter would contain X-and gamma-ray spectrometers, a multispectral stereo imaging system, a reflectance spectrometer, an altimeter, a magnetometer and an alpha-particle detector.  1, record 9, English, - reflectance%20spectrometer

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