发明名称 |
Method and apparatus for confinement of ions in the presence of a neutral gas |
摘要 |
The present invention is an apparatus and method for combining ions with a neutral gas and flowing the mixture with a radial flow component through a magnetic field so that the weakly ionized gas is confined by the neutral gas. When the weakly ionized gas is present in sufficient density, a weakly ionized non-neutral plasma is formed that may be trapped in accordance with the present invention. Applications for a weakly ionized non-neutral plasma exploit the trap's ability to store and manipulate ionic species in the presence of neutral gas. The trap may be connected to a mass spectrometer thereby permitting species identification after a fixed period of time. Delicate and/or heavy particles such as clusters may be held and studied in a "gentle" environment. In addition, the trap can provide a relatively intense, low-energy source of a particular ion species for surface implantation or molecular chemistry. Finally, a long trap may permit spectroscopy of unprecedented accuracy to be performed on ionic species.
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申请公布号 |
US5931986(A) |
申请公布日期 |
1999.08.03 |
申请号 |
US19960696221 |
申请日期 |
1996.08.13 |
申请人 |
BATTELLE MEMORIAL INSTITUTE |
发明人 |
PEURRUNG, ANTHONY J.;BARLOW, STEPHAN E. |
分类号 |
H01J49/42;(IPC1-7):B03C1/30 |
主分类号 |
H01J49/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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