INTEGRAL LOGO Key performance parameters of the IBIS Imager


Parameter   Value 
Energy range  15 keV - 10 MeV
Detector area 2600 cm² (CdTe - Cadmium Telluride)
3000 cm² (CsI - Caesium Iodide)
Spectral resolution    8% @ 100 keV
10% @ 1 MeV
Field of view  8.3 x 8.0 deg Fully Coded (FCFOV)
Angular resolution 12 arcmin FWHM
Line sensitivity 
(3 sigma in 10**6 s, @ 100 keV)
1.8e-5 ph/(s cm²)
Continuum sensitivity 
(3 sigma in 10**5 s, @ 100 keV, Delta E = E/2)
2.3e-6 ph/(s cm² keV)
Timing accuracy 61 microsec - 1 hr
Typical source location 30" @ 100 keV (50 sigma source)
3' @ 100 keV (5 sigma source)
Resources (following EID-A allocation):
Mass 677 kg  (+ 96 kg for tube inside PLM)
Power (sun/eclipse) 240/0 W
Data rate (solar maximum) 59.8 kbps
Date rate (solar minimum) 56.8 kbps