BREMSSTRAHLUNG CALCULATION IN THE 'STRIP' APPROXIMATION.

A.V.Korol\dag, A.G.Lyalin\ddag and A.V.Solov'yov\S

\dag Russian Maritime Technical University, St Petersburg, Russia 198262
\ddag Institute of Physics, St Petersburg State University, St Petersburg, Petrodvorez, Russia 198904
\S A.F.Ioffe Physical-Technical Institute, St Petersburg, Russia 194021

A simple method is described for the approximate calculation of the total bremsstrahlung (BrS)
cross section of the a non-relativistic electron. The approximation is based on the
so called 'stripping' effect$^{1,2}$ and it is very useful for the calculation of BrS
spectra in the photon energy range above the ionization thresholds of the inner atomic shells.