Radio-frequency ion source generating beams with an increased proton content |
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Authors: | A A Ivanov A A Podyminogin I V Shikhovtsev |
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Institution: | (1) Budker Institute of Nuclear Physics, Siberian Division, Russian Academy of Sciences, pr. Akademika Lavrent’eva 11, Novosibirsk, 630090, Russia |
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Abstract: | The results of experiments with an rf ion source generating a beam with an improved mass composition are reported. The proton content in the beam is increased by raising the rf power density in the discharge under the antenna and installing a magnetic filter near the plasma grid. Additional steps are taken to prevent the earlier observed degradation of the beam composition because of aluminum reduction on the inner surface of the ceramic discharge chamber and water release. Specifically, the chamber is lined with pyrolytic boron nitride sheets. |
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