학술논문
ISGRI: the INTEGRAL Soft Gamma-Ray Imager
Document Type
Working Paper
Author
Lebrun, F.; Leray, J. -P.; Lavocat, P.; Cretolle, J.; Arques, M.; Blondel, C.; Bonnin, C.; Bouere, A.; Cara, C.; Chaleil, T.; Daly, F.; Desages, F.; Dzitko, H.; Horeau, B.; Laurent, P.; Limousin, O.; Mathy, F.; Mauguen, V.; Meignier, F.; Molinie, F.; Poindron, E.; Rouger, M.; Sauvageon, A.; Tourette, T.
Source
Astron.Astrophys.411:L141-L148,2003
Subject
Language
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$^2$ with a spatial resolution of 4.6 mm, a low threshold around 12 keV and an energy resolution of $\sim$ 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 10$^6$s observation.
Comment: INTEGRAL A&A special issue
Comment: INTEGRAL A&A special issue