In this paper new techniques for the realization of a high energy gamm
a-ray telescope are presented, based on the adoption of silicon strip
detectors and lead scintillating fibers. The simulated performances of
this instrument show that the silicon strip technology adopted by GIL
DA (Gamma-ray Imaging Large Detector for Astrophysics) could improve t
he performance of EGRET, which is so far the most successful experimen
t of a high energy gamma-ray telescope, though having less volume and
weight.