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Proceedings Paper

The ECLAIRs telescope onboard the SVOM mission for gamma-ray burst studies
Author(s): Henri Triou; Bertrand Cordier; Diego Gotz; Stéphane Schanne; Thierry Tourrette; Pierre Mandrou; Roger Pons; Olivier Godet; Nadège Remoué; Didier Barret; Jean-Luc Atteia; Martine Jouret
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Paper Abstract

The X- and gamma-ray telescope ECLAIRs onboard the future mission for gamma-ray burst studies SVOM (Space-based multi-band astronomical Variable Objects Monitor) is foreseen to operate in orbit from 2014 on. ECLAIRs will provide fast and accurate GRB triggers to other onboard telescopes, as well as to the whole GRB community, in particular ground-based follow-up telescopes. With its very low energy threshold ECLAIRs is particularly well suited for the detection of highly redshifted GRB. ECLAIRs consists of a X- and gamma-ray imaging camera (CXG) observing in a field of view of 2 sr. The CXG is a 2D-coded mask imager with a 1024 cm2 detection plane made of 80 x 80 CdTe pixels, sensitive from 4 keV to 250 keV, with imaging capabilities up to about 50 keV and a localization accuracy better than 10 arcmin. ECLAIRs includes also a triggering electronics which uses the CXG data and detects GRB as countrate increases or the appearance of a new source in cyclic sky images. GRB alerts are transmitted to observers within tens of seconds via a VHF network and all detected photons are available hours later. In this talk we present the lastest ECLAIRs concepts, with emphasis on the expected performances.

Paper Details

Date Published: 11 September 2009
PDF: 9 pages
Proc. SPIE 7449, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XI, 74490X (11 September 2009); doi: 10.1117/12.827245
Show Author Affiliations
Henri Triou, CEA, Saclay (France)
Bertrand Cordier, CEA, Saclay (France)
Diego Gotz, CEA, Saclay (France)
Stéphane Schanne, CEA, Saclay (France)
Thierry Tourrette, CEA, Saclay (France)
Pierre Mandrou, Ctr. d'Etude Spatiale des Rayonnements, CNRS, UPS (France)
Roger Pons, Ctr. d'Etude Spatiale des Rayonnements, CNRS, UPS (France)
Olivier Godet, Ctr. d'Etude Spatiale des Rayonnements, CNRS, UPS (France)
Nadège Remoué, Ctr. d'Etude Spatiale des Rayonnements, CNRS, UPS (France)
Didier Barret, Ctr. d'Etude Spatiale des Rayonnements, CNRS, UPS (France)
Jean-Luc Atteia, LATT (France)
Martine Jouret, Ctr. National d'Études Spatiales, CST (France)


Published in SPIE Proceedings Vol. 7449:
Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XI
Ralph B. James; Larry A. Franks; Arnold Burger, Editor(s)

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