发明名称 |
Time of flight analysis device |
摘要 |
A time of flight (TOF) analysis device such as a TOF spectrometer is disclosed which includes a torch and sample introduction system for supplying a beam of ions to an orthogonal accelerator. The orthogonal accelerator deflects ions in the beam sideways to an ion reflector and then to a detector. The spectrometer includes a time to digital conversion circuit and an integrated transient recorder. The detector can include a series of dynodes and the voltage between dynodes can be varied in order to maintain a constant voltage between an ion sensitive surface and the last of the dynodes. A second ion mirror may be used for reflecting some of the ions towards the detector. The orthogonal accelerator is configured and powered to provide spatial focussing according to a predetermined condition. The spectrometer may also include vertical focussing for focussing the beam back to a size commensurate with the size of the detector after the beam has been focussed by beam forming optics. The spectrometer is configured with three differentially pumped vacuum chambers.
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申请公布号 |
US6627877(B1) |
申请公布日期 |
2003.09.30 |
申请号 |
US19990380736 |
申请日期 |
1999.09.13 |
申请人 |
GBC SCIENTIFIC EQUIPMENT PTY LTD. |
发明人 |
DAVIS STEPHEN C;BANDURA DMYTRO;HOFFMAN ANDY D;MAKAROV ALEXANDER A |
分类号 |
H01J49/10;H01J49/40;(IPC1-7):H01J49/40 |
主分类号 |
H01J49/10 |
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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