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Goddard Space Flight Center

Astrophysics Science Division | Sciences and Exploration

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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

CAI home icon Go to general Coded Aperture Imaging page

These pages have been compiled by Jean in 't Zand. They are intended to provide general information for those interested in coded aperture imaging. Any citations should reference original papers as noted in the bibliography, and requests for further information about any of the papers should be directed to the authors thereof.

October 17, 1995