INFLUENCE OF MULTIPLE SCATTERING ON BREMSSTRAHLUNG BY RELATIVISTIC ELECTRONS IN A THIN ORIENTED CRYSTAL

The effect of multiple scattering on the bremsstrahlung of ultra relativistic electrons on the lattice atoms of a oriented crystal is investigated. It is shown that when the condition of dipole mode of radiation is violated, a radiation suppression effect should take place. This effect is similar to the Ternovskii-Shul’ga-Fomin effect of radiation suppression in a thin amorphous target, but in the case of a thin oriented crystal the coherent bremsstrahlung is suppressed. The conditions for experimental observation of this effect at the DESY accelerator is discussed.