ARC PLASMA GENERATOR Russian patent published in 2025 - IPC H05H1/34 

FIELD: plasma equipment.

SUBSTANCE: arc plasma generator (APG) comprises a cathode, a cathode diaphragm, an anode, a set of annular diaphragms and insulators, a magnetic field coil, a cathode holder flange, an anode holder flange, arc-quenching inserts, gas valves and water cooling channels. At that, cathode diaphragm made of refractory material is isolated from cathode by vacuum gap and has a protrusion in the axial region into the depth of the cathode cavity with height of about cavity radius and thin radial cuts. On the surface of the cathode flange there are arc-quenching inserts made of heat-resistant material, and diaphragms of the discharge channel are separated by annular ceramic insulators and form a coaxial tight assembly in which the outer diameters of all diaphragms are brought out of the vacuum region into the atmosphere and have water cooling.

EFFECT: reduced erosion of the cathode and near-cathode elements of the structure, as well as increased duration of working pulses to 10 s for obtaining beams of fast atoms with sufficiently long (not less than a year of operation) working life of the APG.

3 cl, 2 dwg