Characteristic Radiation from Channeled Electrons

Abstract

Sharp lines in the bremsstrahlung spectrum have been observed for 1.5-4-MeV electrons channeled along a $〈111〉$ direction in silicon. The lines originate in transitions between bound states in the axial transverse potential and may be described as characteristic radiation from a two-dimensional atomlike system moving with relativistic velocity in the $〈111〉$ direction.