  It is proposed to produce the highly charged ions in the local ion trap
formed by a rippling electron beam in the focusing magnetic field. The
experimental results demonstrate the presence of iridium ions with charges up
to 50+. According to estimates, the average electron current density in the
local ion trap can reach the value of the order of 10 kA/cm^2. The pilot
examples of devices of this type with the electron beam energies within the
range 3-10 keV are also presented.
