ing constant electric fields of a preset form in a quasi-electrode system. We have constructed a prototype (12cm
in diameter and 30 cm in length) with 36 filamentary electrodes fed with potentials from divider systems with
azimuthal distribution laws corresponding to cos
', cos2', and cos3 ' laws with the maximal voltages up to 
2.4 kV. As a result, the electric dipole, quadrupole, and sextupole fields are formed. These fields are analyzed for a 2D cross section of the prototype by physical simulation on a specially developed device with conducting paper.
The distributions of the families of equipotential curves measured using the bridge circuit are considered and the
strengths of the three types of electric fields are calculated. The results indicate the attainment of all predicted fields
with preset parameters and a working area of the aperture of
84%. Some other favorable features are also outlined and a number of technical recommendations for producing such fields are given.