CALCULATION OF THE BREMSSTRAHLUNG CROSS SECTION ON POSITIVE IONS A.V.Korol\dag, A.G.Lyalin\ddag and A.V.Solov'yov\S \dag Institut fur Theoretische Physik der Universitat Frankfurt am Main, 60054 Frankfurt am Main, Germany \ddag Institute of Physics, St Petersburg State University, St Petersburg, Petrodvorez, Russia 198904 \S A.F.Ioffe Physical-Technical Institute, St Petersburg, Russia 194021 Bremsstrahlung (BrS) spectra formed in the collision of 0.1 - 25 keV electrons with positive ions of Ne are calculated for the photon energies in the range from 10 eV up to tip end.