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Fundamental Processes of Hydrogen Negative Ion Production in Ion Source Plasma Volume

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Physics and Applications of Hydrogen Negative Ion Sources

Abstract

Negative hydrogen/deuterium ions can be formed by processes occurring in the plasma volume and on surface facing the plasma. The principal mechanism leading to the formation of these negative ions in the plasma volume is dissociative electron attachment to ro-vibrationally excited hydrogen/deuterium molecules. The existing theoretical models and reported experimental results on this mechanism are summarized. The performance of the negative hydrogen ion sources that emerged from these studies is reviewed.

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Bacal, M., Wada, M. (2023). Fundamental Processes of Hydrogen Negative Ion Production in Ion Source Plasma Volume. In: Bacal, M. (eds) Physics and Applications of Hydrogen Negative Ion Sources. Springer Series on Atomic, Optical, and Plasma Physics, vol 124. Springer, Cham. https://doi.org/10.1007/978-3-031-21476-9_1

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