[en] The deuterium cluster ions of specific sizes less than 1000 atoms/unit charge (a positive elementary charge) in a beam of an equivalent current of 1000 Asub(eq) are accelerated with the potential wells (troughs) in accelerated traveling waves on a delay line from 3.10 x 10₇ cm/s (1 keV/atom) to 3.10 x 10₈ cm/s (100 keV/atom) at an acceleration of 5 x 10₁₂ cm/s₂. The potential depth of the wells, the total length of the delay line and the net power required are found to be 26 kV, 100 m and 100 MW, respectively, by fundamental calculation. (author)

[en] Density and potential profiles of a stationary disturbance of current-carrying plasma caused by a floating metal disk in a longitudinal magnetic field were measured. Experimental results were obtained in the upstream region of electron flow, where the disturbance is characterized by a stationary accumulation of plasmas. Current distributions in the disturbance are shown. (author)

[en] We propose to use a neutral deuterium beam produced from the negative ion source using cluster ions for refueling into TCT material test reactor. After estimating necessary plasma parameters and geometry dimensions of the reactor, we discuss the feasibility of using the high energy deuterium beam produced from the negative ion source using cluster ions for refueling

[en] An accelerator for ion beams has been designed and constructed in which ions collectively undergo acceleration in the wells of a train of triangle-shaped potential waves moving with a constant acceleration. The accelerator mentioned above is planned for investigating the conditions necessary for acceleration of ions with a mass distribution, such as cluster ions, which will be available in future fusion reactors. The method and the circuits for generations of propagating accelerated waves are described and the structure of the accelerator with an acceleration space 120 cm long is mentioned. A result is reported on a preliminary experiment for acceleration of an argon ion beam, which shows that the accelerator works well

[en] For a powerful additional heating and refuelling of hot plasmas, injection of the deuterium cluster ions of 10 to 10³ atoms/cluster which are accelerated collectively as high as 100 keV/atom by accelerating potential waves is proposed. By theoretical investigations, it has been found that these cluster ions can be collectively accelerated from 3.10 x 10⁷cm/s(1 kev/atom) to 3.10 x 10⁸cm/s(100 keV/atom), if they are injected into the potential waves at a phase of 0(the minimal potential) to -30 deg. and a conceptual design of this accelerator is tried. The possibility of realization of this accelerator has been confirmed