of interaction of β-radioactive radiation
with biotissue of an organism is lead. It is shown, that during electrons
moderation there is a brake electromagnetic radiation usually in an X-ray
range. There are derivatives of the formulas in not relativistic and
relativistic variant for a finding of dependence of a flux brake electromagnetic
radiation from frequency, of charging number elements of a biotissue, of a parameter
of efficiency braking of electrons, of initial intensity of a flux of electrons
and initial energy of electrons, is given.