Nonlinear resonance effects in a linear Paul trap
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概要
- 論文の詳細を見る
The effects of nonlinear resonances in a linear Paul trap have been investigated through systematic experiments and numerical simulations. The main causes of the nonlinearity that affects the stability of the ion motion are the use of circular (rather than hyperbolic) electrodes, their misalignments, and Coulomb interactions among the ions. A particle tracking code based on a two-dimensional model is employed to study the efficiency of plasma storage and to confirm the existence of nonlinear resonance stop bands. Experiments are performed with Ar+ plasmas that are eventually detected by a Faraday cup after a short storage. The obtained data are compared with numerical simulations in which the exact three-dimensional structure of the trap system has been incorporated. Several nonlinear stop bands have been experimentally identified inside the Mathieu stability region. It is demonstrated that the location of a resonance stop band moves due to the space-charge potential depending on the number of confined ions.
- 社団法人日本物理学会の論文
- 2007-01-15
著者
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Ito Kiyokazu
Department Of Quantum Matter Graduate School Of Advanced Sciences Of Matter Hiroshima University
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Ito Kiyokazu
Department Of Fundamental Sciences Faculty Of Integrated Human Studies Kyoto University
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NAKAYAMA Kenji
Department of Neurosurgery, Oomuta Municipal Hospital
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Okamoto Hiromi
Department Of Quantum Matter Graduate School Of Advanced Sciences Of Matter Hiroshima University
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Takai Ryota
Department Of Quantum Matter Graduate School Of Advanced Sciences Of Matter Hiroshima University
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SAIKI Wataru
Department of Quantum Matter, Graduate School of Advanced Sciences of Matter, Hiroshima University
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Saiki Wataru
Department Of Quantum Matter Graduate School Of Advanced Sciences Of Matter Hiroshima University
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Nakayama Kenji
Department Of Cardiothoracic Surgery Niigata Prefectural Shibata Hospital
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Nakayama Kenji
Department Of Quantum Matter Graduate School Of Advanced Sciences Of Matter Hiroshima University
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Okamoto Hiromi
Department Of Quantum Matter Adsm Hiroshima University
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Okamoto Hiromi
Department Of Chemistry Graduate School Of Science Osaka Prefecture University
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