Single Crystal as a High Energy Photons Detector for γ-Astronomy

AbstractOne of the important problems of modern astrophysics and gamma–astronomy is in designing detectors for high energy photons (more than 1GeV) with high angular resolution. In this energy range the dominating phenomenon in interaction of photons with matter is the e-e+ pair production. High angular resolution can be achieved using single crystals as effective converters of photons into e-e+ pairs due to coherent production of pairs in the channeling regime