FIELD: electricity.
SUBSTANCE: electron beam is transported along the curving evacuated channel (1) with a direct-axis (8) as smooth line and the wall (4), fabricated from the material capable to electrisation. Meanwhile the channel, used for transportation, is fitted with the conducting shell adjacent to the external surface (6) of its walls (2), or this surface has a conductive coating (7). The shell or the coating (7) is energised by the potential using the terminals (9), which induces on the internal surface (5) of the channel wall a negative charge with obtaining in the channel of the potential barrier exceeding the maximum energy of electrons of the transported beam.
EFFECT: possibility of transportation of high energy electron beams in combination with ensuring of wide freedom of selection of geometrical parameters of the channel without hitting the channel wall by electrons and elimination of necessity in use of devices of magnetic beam control.
3 cl, 3 dwg
