Title :
Improvement of Inertial Electrostatic Confinement Device by Magnetron-Discharge-Based Built-in Ion Source
Author :
Takamatsu, T. ; Masuda, K. ; Ogawa, S. ; Toku, H. ; Yoshikawa, K.
Author_Institution :
Kyoto Univ.
Abstract :
An inertial electrostatic confinement (IEC) fusion device is studied for a compact fusion neutron/proton source using a magnetron discharge as an external ion source. The addition of ion sources to the IEC device is to enhance the efficiency of fusion reactions by lowering the operating gas pressure and by providing beam-like ion energy distribution. At lower gas pressures, charge exchange collisions are reduced, resulting in longer ion lifetime and enhanced ion re-circulation. An improvement in normalized neutron yield about a factor of ten has been observed with respect to grid current and the operating gas pressure at greatly reduced operation gas pressure of 0.1 Pa
Keywords :
charge exchange; fusion reactor design; fusion reactor reaction chamber; glow discharges; heavy ion fusion reactions; ion sources; plasma inertial confinement; plasma sources; 0.1 Pa; beam-like ion energy distribution; charge exchange collisions; compact fusion neutron-proton source; external ion source; fusion reactions; glow discharge; grid current; inertial electrostatic confinement fusion device; ion recirculation; magnetron discharge; normalized neutron; operating gas pressure; Cathodes; Electrostatics; Glow discharges; IEC; Inertial confinement; Ion sources; Landmine detection; Magnetic confinement; Magnetic devices; Neutrons; component; inertial electrostatic confinement; ion source; neutron generator;
Conference_Titel :
Fusion Engineering 2005, Twenty-First IEEE/NPS Symposium on
Conference_Location :
Knoxville, TN
Print_ISBN :
0-4244-0150-X
Electronic_ISBN :
0-4244-0150-X
DOI :
10.1109/FUSION.2005.252871
