| 摘要 |
PCT No. PCT/AU88/00498 Sec. 371 Date Jul. 19, 1990 Sec. 102(e) Date Jul. 19, 1990 PCT Filed Dec. 23, 1988 PCT Pub. No. WO89/06044 PCT Pub. Date Jun. 29, 1989.A time of flight mass spectrometer includes an ion source (10) a lens system (18, 19) to focus the ions into a beam (21), an orthogonal accelerator (22) comprising two parallel electrodes one of which is a grid through which ions are deflected into a main accelerator and into a flight tube (26). At the distal end of the flight tube (26) is located an ion detector (27) which enables the measurement of the time of flight of ions from the orthogonal accelerator (22) to the detector (27).
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