Abstract
The radiation of high energy positron channelling in diamond crystals is investigated experimentally. The spectral distributions of the radiation intensity for planar channelling (plane (01l)) at positron energies E 0=2, 4, 6, 10, 14 and 16 GeV as well as for axial channelling (axis [100]) at E 0 = 4, 6, 10 and 14 GeV are given.