| 4 | Gas pressure effect on plasma transport in a magnetic-filtered radio-frequency plasma source显示文摘Volume negative ion production relies on a magnetic filter(MF),where the plasma downstream of the MF is characterized by a strip-like pattern that consists of a bright and dense plasma region.In this work,we study,in a radio-frequency plasma source,the effects of operating pressure on this strip.This investigation,conducted using a Langmuir probe,shows that the plasma uniformity might be controlled through the gas pressure.Moreover,the operating pressure determines on which hemi-cylinder(side of magnetic field lines)the strip forms.This side inversion of the high-density plasma hemi-cylinder is due to an inversion of an ambipolar electric field that changes the E?×?B drift direction. | N OUDINI M M ALIM R TADJINE A BENDIB | 2020 | Plasma Science and Technology2020，22，6： | 0 |
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