• A.O. Aganyants
  YerPhI, Yerevan

Experimental investigations of gamma ray emission at passage 4.3 GeV electron beam through the crystal have shown that yield of radiation grows non-linearly versus the electron beam intensity both in extremely low-energy coherent part of spectrum (coherent gamma rays) and even in more high energy range of one. It is observed a transition to saturation mode of the radiation even if to change some parameters of a crystal target. Apparently, the exciting of atomic medium of the crystal by intense electron beam results in process of self-organization or phasing of atoms that strengthens photon emission of relativistic electrons.