高エネルギーアークのイオン温度およびイオン集団運動の測定

概要

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On an energetic arc, shapes of emitted spectral lines were investigated spectrographically, Ion temperatures from their halfwidths, velocities of collective rotational drift, of emitting ions from their spectral inclinations on transverse observation, and velocities of collective axial motion from their wavelength shifts on longitudinal observation were respectively estimated. Maximum values obtained were : (1) 20 eV of ion temperature at the center between electrodes of the arc, (2) 7×105 cm/sec of e+ rotational drift velocity, (3) 1.5×106 cm/sec of C++ axial drift velocity. They increase with the decrease of neutral gas pressure. Increase of the are current decreases the axial drift velocity, and increases the ion temperature. Increase of the axial magnetic field increases both the ion's rotational, drift velocity and on a smaller degree the ion temperature.
社団法人プラズマ・核融合学会の論文