Performance characteristics of an inertial electrostatic confinement fusion device with a triple-grid system

Performance characteristics of an inertial electrostatic confinement fusion triple-grid system are experimentally studied to provide an ample fusion r eaction rate under a lower-gas-pressure region to make the operation free f rom glow discharge restrictions between the discharge voltage, current, and gas pressure. With a filament to provide sufficient electrons, the operati ng gas pressure is found to reduce down to 1/5 for the same discharge curre nt and voltage. Although the gas pressure region that was achieved still re mains the region where the fusion reaction between the ion beam and backgro und gas is dominant, the neutron yield normalized by the gas pressure in th e triple-grid system shows higher value than the conventional single-grid s ystem.