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Performance Characteristics of an Inertial Electrostatic Confinement Fusion Device with a Triple-Grid System

Kai Masuda, Kenji Taruya, Takahiro Koyama, Hirofumi Hashimoto, Kiyoshi Yoshikawa, Hisayuki Toku, Yasushi Yamamoto, Masami Ohnishi, Hiroshi Horiike, Nobuyuki Inoue

Fusion Science and Technology / Volume 39 / Number 3 / Pages 1202-1210

May 2001

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Performance characteristics of an inertial electrostatic confinement fusion triple-grid system are experimentally studied to provide an ample fusion reaction rate under a lower-gas-pressure region to make the operation free from glow discharge restrictions between the discharge voltage, current, and gas pressure. With a filament to provide sufficient electrons, the operating gas pressure is found to reduce down to 1/5 for the same discharge current and voltage. Although the gas pressure region that was achieved still remains the region where the fusion reaction between the ion beam and background gas is dominant, the neutron yield normalized by the gas pressure in the triple-grid system shows higher value than the conventional single-grid system.

 
 
 
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