ISGRI: The INTEGRAL soft gamma-ray imager
ISGRI: The INTEGRAL soft gamma-ray imager
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DOI：
10.1051/0004-6361:20031367
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发表时间：
2003-10
影响因子：
6.5
通讯作者：
F. Lebrun;J. Leray;P. Lavocat;J. Cretolle;M. Arques;C. Blondel;C. Bonnin;A. Bouère;C. Cara;T. Chaleil;F. Daly;F. Desages;H. Dzitko;B. Horeau;Philippe Laurent;O. Limousin;F. Mathy;V. Mauguen;F. Meignier;F. Molinié;E. Poindron;M. Rouger;A. Sauvageon;T. Tourette
中科院分区：
文献类型：
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作者：
F. Lebrun;J. Leray;P. Lavocat;J. Cretolle;M. Arques;C. Blondel;C. Bonnin;A. Bouère;C. Cara;T. Chaleil;F. Daly;F. Desages;H. Dzitko;B. Horeau;Philippe Laurent;O. Limousin;F. Mathy;V. Mauguen;F. Meignier;F. Molinié;E. Poindron;M. Rouger;A. Sauvageon;T. Tourette
For the first time in the history of high energyastronomy, 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 itsin-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 observedbackground level confirms the expected sensitivity of 1 milliCrab for a 10$^6$s observation.
