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Plasma Diffusion Associated with Drift-Wave Instabilities Due to Local Production of Massive Negative Ions

W. Oohara, R. Hatakeyama

Fusion Science and Technology / Volume 43 / Number 1T / January 2003 / Pages 216-218

Stability /

Published:February 8, 2018

When fullerene negative ions are locally produced in a magnetized plasma consisting of electrons and potassium positive ions, a negative-ion-driven drift wave (NDDW) is destabilized by the density gradient and strong radially outward diffusion of negative ions is observed nearby the local production region. The correlation between the diffusion coefficient and the NDDW amplitude gives support to an interpretation that NDDW is responsible for the enhanced diffusion.

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