Formation of an electron beam in a matrix carbon field-emission cells

Results of research of an electron beam in field-emission Grigoryev-Shesterkina type cathode cells, intended for use are presented to the microwave oven devices. Possibility of development an electron optical system (EOS) with field-emission cathode matrixes for the O-type microwave devices with the beam emittance similar to an emittance in EOS with the thermo cathode is shown.