发明名称 |
Molecular imaging system |
摘要 |
An ion-beam based system enables quantitative analysis and visualization of a sample with atomic and molecular specificity. The system comprises a liquid metal ion source that directs a tightly focused beam of ions at the sample, the beam having an ion density that is insufficient to materially change the surface properties of the sample. A controller connected to the liquid metal ion source gates on the ion beam for a period of time that is sufficient to enable the ion source to achieve a tight focus of the beam at the sample and for further scanning the ion beam across the sample. A laser beam is positioned over the sample and has a wavelength that resonantly ionizes components of the sample that are liberated by action of the scanned ion beam. A detector measures the liberated ionized components and is connected to a display system that provides an image of the distribution of the species on surface of the sample.
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申请公布号 |
US5272338(A) |
申请公布日期 |
1993.12.21 |
申请号 |
US19920887201 |
申请日期 |
1992.05.21 |
申请人 |
THE PENNSYLVANIA RESEARCH CORPORATION |
发明人 |
WINOGRAD, NICHOLAS;BENKOVIC, STEPHEN J. |
分类号 |
G01N23/225;G01Q90/00;H01J37/256;(IPC1-7):H01J37/252 |
主分类号 |
G01N23/225 |
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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