METHOD OF CONTROLLING ELECTRON FLOWS IN TRIODE Russian patent published in 2025 - IPC H01J17/54 

FIELD: plasma power engineering.

SUBSTANCE: in the method of controlling electron flows in a triode filled with helium, a discharge is created directly between the cathode and the control electrode through a hole in the anode. Between cathode and anode low-voltage beam discharge is ignited at zero current to control electrode, wherein a potential difference between them is not less than the helium ionisation potential of 24.7 V by the stabilized voltage source, due to this, potential distribution is formed with sharp jumps near the cathode and the anode and the quasi-neutrality region in the main part of the cathode-anode gap. Next, varying the anode potential U_a from 5 to 20 V and the control electrode potential U_ce from 35 to 40 V by external voltage sources, concentration of electrons is controlled by varying helium pressure from 1 to 5 Torr by the system of pressure control valves and needle inlet. Current increases from 1.3 to 4 times, voltage from 2 to 5 times, and electric power from 1.3 to 20 times.

EFFECT: increase of current force, voltage and electric power in power circuits.

1 cl, 4 dwg, 3 tbl