Abstract: In a fusion reaction system where ions from two sources travel along helical paths toward each other in opposite senses and directions at a common radius in a cylindrical reaction zone, electrically conductive coil means are formed as a helix and placed in the zone whereby coupling of spontaneous space charge waves and helical coils is damped.

Abstract: A fusion reaction system wherein a compressed spiral beam of electrons forms a cylindrical electron sheath and wherein oppositely directed cylindrical beams of fusible ions are projected through said electron sheath and are forced into a common thin cylindrical path located where the potential gradient in electron sheath is minimum.

Abstract: This invention relates to the control of ions orbiting in a cylindrical reaction space and more particularly to attenuation of instabilities in two counterflow streams of ions to focus the ions of both streams into a predetermined orbital reaction zone.

Abstract: Atomic nuclei undergo fusion reactions by forming two beams of fusible ions traveling at fusion producing velocities opposed in rotation along spiral paths having common axes (35a), common radii and occupy common space in a reaction zone (22) for fusion producing collisions of ions in one beam with ions in the other beam.Means including sources (16 and 17) produce the oppositely traveling circumferential beams.Radially directed electric fields are applied to the beams of strength increasing with increasing distance from sources (16 and 17) for beam compression into spiral paths of a common reduced diameter passing through common space in zone (22) to promote collisions between ions in the oppositely traveling beams as they travel in the common space.

Abstract: Atomic nuclei undergo fusion reactions by forming two beams of fusible ions traveling at fusion producing velocities opposed in rotation along spiral paths having common axes (35a), common radii and occupy common space in a reaction zone (22) for fusion producing collisions of ions in one beam with ions in the other beam.Means including sources (16 and 17) produce the oppositely traveling circumferential beams.Radially directed electric fields are applied to the beams of strength increasing with increasing distance from sources (16 and 17) for beam compression into spiral paths of a common reduced diameter passing through common space in zone (22) to promote collisions between ions in the oppositely traveling beams as they travel in the common space.

Abstract: A nuclear fusion system is disclosed wherein a pair of beams are to traverse common helical paths in a reaction zone. Two sources of oppositely directed gaseous ions are provided for producing the beams with means for establishing helical flow of ions in common paths whose spins are aligned in both beams.

Abstract: A fusion reaction system is provided wherein ions from two sources are forced by passage through magnetic and electric fields to travel toward each other in opposite senses and directions under confinement to common helical paths at a common radius in a cylindrical reaction zone by radial electric fields. The ions are bunched along said helical paths to establish a plurality of concentrations of the ions located at spaced points along the paths with the points being the same for ions from both sources. Structure in the reaction zone is arranged for establishing local variations in the radial electric fields to produce the localized concentrations of ions as they traverse their helical paths. Further, means may be provided to velocity modulate the ion sources for producing standing waves along the reaction paths having velocity nodes located at points in the reaction zone where the localized concentrations occur.