ISGRI: the INTEGRAL Soft Gamma-Ray Imager
Astrophysics
2009-11-10 v1
Abstract
For the first time in the history of high energy astronomy, a large CdTe gamma-ray camera is operating in space. ISGRI is the low-energy camera of the IBIS telescope on board the INTEGRAL satellite. This paper details its design and its in-flight behavior and performances. Having a sensitive area of 2621 cm with a spatial resolution of 4.6 mm, a low threshold around 12 keV and an energy resolution of 8% at 60 keV, ISGRI shows absolutely no signs of degradation after 9 months in orbit. All aspects of its in-flight behavior and scientific performance are fully nominal, and in particular the observed background level confirms the expected sensitivity of 1 milliCrab for a 10s observation.
Keywords
Cite
@article{arxiv.astro-ph/0310362,
title = {ISGRI: the INTEGRAL Soft Gamma-Ray Imager},
author = {F. Lebrun and J. -P. Leray and P. Lavocat and J. Cretolle and M. Arques and C. Blondel and C. Bonnin and A. Bouere and C. Cara and T. Chaleil and F. Daly and F. Desages and H. Dzitko and B. Horeau and P. Laurent and O. Limousin and F. Mathy and V. Mauguen and F. Meignier and F. Molinie and E. Poindron and M. Rouger and A. Sauvageon and T. Tourette},
journal= {arXiv preprint arXiv:astro-ph/0310362},
year = {2009}
}
Comments
INTEGRAL A&A special issue