RIBBON PLASMA ION EMITTER Russian patent published in 2007 - IPC H01J27/04 

FIELD: technologies for plasma production and generation of ribbon ion beams.

SUBSTANCE: ribbon plasma ion emitter contains plasma cathode, electrode system of which includes cylindrical hollow cathode with output aperture in form of slit, axis of which is parallel to axis of cathode, ignition electrode in form of thin thread, stretched along cathode axis, small-structure anodic mesh, mounted oppositely to cathode aperture, and plasma generator, including screening mesh with apertures for extraction of ions, which is electrically connected to anodic mesh, and hollow main anode being under positive potential relatively to meshes, on external surface of which magnetic system consisting of constant magnets is mounted. Constant magnets have similar orientation of poles and are mounted along anode in one row for forming linear one-poled expanding magnetic field inside the anodic hollow, while transverse dimension of anodic mesh is determined with consideration of thickness of cathode layer of spatial charge based on given dependencies.

EFFECT: creation of extensive ribbon plasma emitter of ions based on discharge with cold cathode while maintaining high energetic efficiency and gas efficiency of source of ions.

1 dwg