Reduction of the impurity concentration of an intense hydrogen ion beam
- 1 January 1983
- journal article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 54 (1) , 50-55
- https://doi.org/10.1063/1.1137214
Abstract
An effort was made to measure and reduce the impurity content of an intense hydrogen beam used for neutral injection heating of a stellarator plasma. Originally, the hydrogen ion beam contained 5% water and water-like ions. A simple and very useful method to reduce the contamination turned out to be evaporation of titanium on the inner surfaces of the ion source, which reduced the low-Z impurity content to 0.6%.Keywords
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