MANIFESTATION OF THE BETHE RIDGE IN POLARIZATIONAL BREMSSTRAHLUNG A.V. Korol\dag, A.G.Lyalin\ddag, O.I.Obolensky\S and A.V.Solov'yov\S \dag Russian Maritime Technical University, St Petersburg, Russia 198262 \ddag Institute of Physics, St Petersburg State University, Petrodvorez, Russia 198904 \S A.F.Ioffe Physical-Technical Institute, St Petersburg, Russia 194021 A novel non-trivial velocity dependence of the Bremsstrahlung spectrum is discussed. This feature has the same origin as the Bethe Ridge in differential inelastic electron--atom scattering.