TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The target is a sphere, cylinder, toroid, helix, or a predetermined complex shape which is concentrically centered in alignment and registration with the corresponding envelope shell. The target provides a location capable of permitting and surviving nuclear reactions and a location for ion impact at fusion reactive speeds. The enclosed space is defined a space between the central target and the inner surface of the enclosing envelope shell. The defined space provides a location for the generation of an alternating electric field, which provides for: the ionization of gases contained in it; and the alternately radial outward acceleration and the alternately radial inward acceleration of ionized gases contained in it. The radial inward acceleration of ionized gases provides: for ions impacting the central target, for the impact of ions with one another, and for such impacts to occur at fusion reactive velocities; and for a period of time during operation in which gas distribution allows for gas exchange. The fusion reactive gas is composed of: fusion reactive isotopes of hydrogen and/or helium; or other fusion reactive gases. The envelope shell provides a sealed space containing gas at a predetermined pressure, a surface providing a location for the stopping of the outward movement of ions, a surface providing a location for the stopping of the outward movement of electrons, a location of an equipotential of electric charge accumulation, the outward passage of particulate and waveform radiations, and the development of a concentrically symmetrical electric field. The fusion reactive gas is at a predetermined pressure of 0.00000001-760 (preferably 0.01-0.001) Torr. The insulating and cooling medium separates and distances AC ground potential from locations within the reactor chamber, along the inner surface of the reactor chamber, along the outer surface of the reactor chamber, and to places external to the thermally and electrically insulated enclosure. The separation and distancing of AC ground potential provides for a symmetrically developed field within the reactor, an electric field of evenly developed intensity radially outward from the target to the ground plane, the prevention of internal arcing, and the reduction of capacitive reactance loading of the power supply. The high voltage AC potential provided by the power supply is at a predetermined: voltage of 10-25000000 (preferably 100-250) KV AC root mean square (RMS); and frequency of 25-10000000 (preferably 20000-50000) Hertz. The thermally and electrically insulated enclosure provides for the electrical isolation of AC ground potential to a location external to the space enclosed by the thermally and electrically insulated enclosure. The thermally and electrically insulated enclosure provides for the outward passage of particulate and waveform radiations, and the restriction of the inward passage of thermal energy from the surrounding radiation absorbing and cooling medium. The absorbing and cooling medium provides for the absorption of emitted radiations released by the fusion reactor. The absorption of emitted radiations released by the reactor provides for the harnessing of the radiations to do work, the shielding of the external environment of the reactor from radiations, and the cooling of the contained reactor and its associated internal components. The envelope shell is: a cylinder, toroid, helix, or a predetermined complex shape for containing fusion reactions; and composed of an electrically insulating material. The electrically insulating envelope shell provides for the attachment of an electrically insulated support which concentrically centers the central target within the defined space enclosed by the envelope shell and the electrically insulated passage through the envelope shell of an electrical connection to the AC power supply. The central target is a cylinder, toroid, helix, or a predetermined complex shape which is concentrically centered in alignment and registration with the corresponding envelope shell. The central target is composed of a material capable of permitting and surviving nuclear reactions, preferably titanium which provides an impact surface for fusion reactions. The envelope shell is: a sphere, cylinder, toroid, helix, or a predetermined complex shape for containing fusion reactions; and composed of an electrically conductive material. The central target is a sphere, cylinder, toroid, helix, or a predetermined complex shape which is concentrically centered in alignment and registration with the corresponding envelope shell and is devoid of all structure. The central target provides a region of virtual electrical ground. The envelope shell is a complex shape consisting of a cylinder sealed on both ends with bulbar ends aligned along a centrally concentric axis. The radii of the bulbar ends define a central and concentric focal point along the central, long axis of the envelope shell. The central cylindrical section defines the location of a conductive region forming an electric focus lens element. The central target is a sphere, cylinder, toroid, helix, or a complex shape which is concentrically centered in alignment and registration along the central long axis of the corresponding envelope shell and is devoid of all structure. The focal regions of the lens and bulbar regions of the insulated envelope shell consist of a conductive material. The electric focus lens element provides for the focus of converging ion beams onto the centrally located target. The electric focus lens comprises an open cylindrical conductive region centered along the long axis of the envelope shell, a focus voltage power supply, electrical interconnections for connecting the lens and power supply, and operational controls. The light hydrogen production plant provides for the purification of inlet water, the serial concentration of light water, the electrolysis of light water into light hydrogen and oxygen, the discharge of waste water, the discharge of oxygen, the collection and storage of light hydrogen, and a means of separating and purifying light hydrogen from other hydrogen isotopes. The heavy water separation unit provides for the separation of heavy water and light water utilizing the differences in the phase change temperatures/specific gravity of heavy water with relation to that of light water.