TERMIUM Plus®
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GAMMA-RAY CAMERA [3 records]
Record 1 - internal organization data 2003-08-18
Record 1, English
Record 1, Subject field(s)
- Spacecraft
Record 1, Main entry term, English
- instrument IBIS
1, record 1, English, instrument%20IBIS
correct
Record 1, Abbreviations, English
- IBIS 2, record 1, English, IBIS
correct
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
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 1, English, - instrument%20IBIS
Record number: 1, Textual support number: 1 PHR
Gamma-ray imaging instrument IBIS. 3, record 1, English, - instrument%20IBIS
Record 1, French
Record 1, Domaine(s)
- Engins spatiaux
Record 1, Main entry term, French
- instrument IBIS
1, record 1, French, instrument%20IBIS
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
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 1, French, - instrument%20IBIS
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2001-03-09
Record 2, English
Record 2, Subject field(s)
- Scientific Research Equipment
Record 2, Main entry term, English
- optical monitor camera
1, record 2, English, optical%20monitor%20camera
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
... the Optical Monitor Camera(OMC), [is an] instrument dedicated to simultaneous optical monitoring of the objects being observed by Integral' s two gamma-ray instruments and x-ray monitor. 2, record 2, English, - optical%20monitor%20camera
Record 2, French
Record 2, Domaine(s)
- Matériel et équipement (Recherche scientifique)
Record 2, Main entry term, French
- caméra OMC
1, record 2, French, cam%C3%A9ra%20OMC
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
INTA a libré à l'ESA la caméra OMC (Optical Monitor Camera) destinée au satellite Integral. 1, record 2, French, - cam%C3%A9ra%20OMC
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 1999-03-25
Record 3, English
Record 3, Subject field(s)
- Astrophysics and Cosmography
Record 3, Main entry term, English
- pin-hole camera
1, record 3, English, pin%2Dhole%20camera
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- pin hole camera 2, record 3, English, pin%20hole%20camera
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 OBS
A coded-mask telescope is basically a pin hole camera, but with a larger aperture(i. e. many pinholes) in order to cope with the low gamma-ray fluxes. 2, record 3, English, - pin%2Dhole%20camera
Record 3, French
Record 3, Domaine(s)
- Astrophysique et cosmographie
Record 3, Main entry term, French
- caméra à trou d'épingle
1, record 3, French, cam%C3%A9ra%20%C3%A0%20trou%20d%27%C3%A9pingle
feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Pour obtenir une image de bonne résolution des sources de lumière aux longueurs d'onde X et gamma, [...] on a eu l'idée de réaliser des caméras à trous d'épingle, où l'image se forme sans miroirs ni lentilles. Pour accroître la luminosité, on dispose un grand nombre de trous selon un arrangement déterminé : chaque trou forme la même image décalée sur la plaque sensible. Un traitement informatique de cette image brouillée décode l'information et reconstitue l'image de la source de lumière avec une résolution de 15' et une précision de localisation de 30" soit un progrès de deux ordres de grandeur par rapport aux moyens antérieurs. 1, record 3, French, - cam%C3%A9ra%20%C3%A0%20trou%20d%27%C3%A9pingle
Record 3, Spanish
Record 3, Textual support, Spanish
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