科研之友
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摘要
Metal grids made of nickel, copper, titanium, and iron are used for production of negative hydrogen ions through the irradiation of positive ions. It is easy to determine the existing negative ions in the diffused plasma through the Langmuir probe measurement; however, the negative current, indicating the diminution of the extraction current from the grid, is found to not clearly depend on the work function and electronegativity. Published by AIP Publishing.
- 出版日期2017-2
