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- W2892616175 abstract "In this study, we have carried out the experimental observation and modeling of negative ion, atomic and molecular ions in hydrogen sheet plasma. On the experiment, hydrogen sheet plasma was produced by a linear plasma device TPD-Sheet IV. The electron density and temperature were measured by Langmuir probe. The density profiles of hydrogen ions were measured by omegatron mass spectrometer. In the experimental result, it has been found that negative ions are produced at periphery region of sheet plasma. When the hydrogen gas pressure was 0.2-0.3Pa, negative ion density became maximum (NH− ∼1017 m−3). To model the ion density in this experiment, a zero-dimensional model is developed for solving the system of rate balance equations for ion and gas species. In evaluating the rate coefficients, the reactions involving H+, H2+, H3+, and H- are vibrationally resolved in the model. In the calculate result, it has been found that negative ions are produced at periphery region of sheet plasma. When the hydrogen gas pressure was 0.2-0.3Pa, negative ion density became maximum (NH− ∼1016 m−3). The experiments and the model calculate results indicate that production of negative ions in sheet plasma depends on the gas pressure and location from the plasma column." @default.
- W2892616175 created "2018-10-05" @default.
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- W2892616175 date "2018-01-01" @default.
- W2892616175 modified "2023-09-24" @default.
- W2892616175 title "Production of hydrogen negative ions in high density sheet plasma" @default.
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- W2892616175 doi "https://doi.org/10.1063/1.5053251" @default.
- W2892616175 hasPublicationYear "2018" @default.
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