Astrophysical Roentgen Telescope (ART-P) / Granat
Characteristics of each of the four ART-P modules
Detector type Multi-Wire Proportional Counter
Detector area 258 X 246 mm**2
Detector gas Xe (85%), Ar (10%), CO2 (5%)
Detector gas pressure 3 atm
Distance Aperture-Detector 1320 mm
Field of View (FWHM) 1.8 X 1.8 sq. degrees
Mask element size 2 X 2 mm**2
Mask area 344 X 328 mm**2
Mask open fraction 0.5
Angular Resolution (FWHM), on-axis 6 arcmin
Active photon energy range 4-60 keV
Photon energy resolution (FWHM) 14% at 59.6 keV
ART-P was designed and built by
the
Space Research Institute at Moscow (Russia) and is part of
the
Granat satellite payload.
For more info,
see R. Sunyaev, Advances in Space Research, Volume 10, p (2)233 (1990) or
contact R. Sunyaev at rsunyaev@hea.iki.rssi.ru.
Go to general Coded Aperture Imaging page
October 17, 1995