Skobeltsyn Institute of Nuclear Physics
Lomonosov Moscow State University

Possibility of atomic nucleus structure diagnostics in mutter using bremsstrahlung
radiation (BR) by relativistic electrons in real condition of nucleus electric field
screening by medium electrons is discussed. An alternative method of BR spectrum
calculation is stated that allows to establish original connection of frequency -
angular BR properties and the relativistic factor of radiating electron for light and
heavy elements. It is shown that despite of sharp falling of BR intensity in comparison
with radiation on a "naked" nucleus medium electrons suppress not completely BR that
keeps an opportunity of its use for media structural diagnostics.