Observation of anomalies in the spectrum and angular distribution of the γ-ray emission by ultrarelativistic electrons in thick crystals
Antipenko A.P., Blazhevich S.V., Bochek G.L., Kulibaba V.I., .Maslov N.I, Nasonov N. N., Ovchinnik V.D., Fomin S.P., Shramenko B.I., Shul'ga H.F.
A new method has made it possible to measure the true spectrum and angular distribution of the y-ray emission by high-energy electrons in thick crystals for the first time. Anomalies have been observed in the angular distribution of the hard γ emission during passage of an electron beam along a crystallographic axis through a silicon crystal.