量研学術機関リポジトリ「QST-Repository」は、国立研究開発法人 量子科学技術研究開発機構に所属する職員等が生み出した学術成果（学会誌発表論文、学会発表、研究開発報告書、特許等）を集積しインターネット上で広く公開するサービスです。 Welcome to QST-Repository where we accumulates and discloses the academic research results(Journal Publications, Conference presentation, Research and Development Report, Patent, etc.) of the members of National Institutes for Quantum Science and Technology.
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High-density ion beams obtained by electron cooling will be used for medical and other applications at HIMAC. Cool-stacking injection was carried out with Ar18+ ions at 6MeV/u to increase the intensity to a limit, which was determined by instabilities and by the ion lifetime. The maximum ion stackintensity was 2emA, above which fast-ion losses occurred simultaneously with vertical coherent oscillations. The instability depends on the working point, the ion stackdensity and secondary ions trapped in the cooler. The instability was damped by reducing the stacked ion density with transverse RF-excitation, and/or by clearing the secondary particles.
雑誌名
Nuclear Instruments & Methods in Physics Research Section A
Cool-stacking injection and damping of a transverse ion-beam instability at the HIMAC synchrotron
