THE IMAGER ON INTEGRAL

The EIDOS gamma-ray Imager has been proposed in response to the INTEGR AL Announcement of Opportunity issued on the 1st July 1994. Through a combination of differ ent detector technologies, it provides high-qual ity imaging of celestial gamma-ray sources in the energy range between 20 keV and 10 MeV combined with high continuum sensitivity, high sens itivity to both narrow and broadened gamma-ray lines and good spectral resolution. The instrument also offers sensitive polarimetry of gamma -ray sources. The scientific objectives of this instrument are vast an d range from studies of the most compact Galactic objects through to t he structure of the Galaxy and on to active galactic nuclei. Careful a ttention has been taken to ensure that the design of the EIDOS Imager is compatible with the mission requirement for a Galactic Plane Survey .