Radiant energy – Ionic separation or analysis – Ion beam pulsing means with detector synchronizing means
Patent
1997-08-29
1999-04-27
Nguyen, Kiet T.
Radiant energy
Ionic separation or analysis
Ion beam pulsing means with detector synchronizing means
H01J 4940
Patent
active
058981730
ABSTRACT:
A high resolution linear tine-of-flight mass spectrometer consists of clearing the analyte ions to be detected of neutral and charged fragments by applying of an electrical deflection perpendicular to the flight direction in conjunction with a direction-filtering diaphragm, in order to avoid smearing of the signal by their deviations in velocity. The mass spectrometer simultaneously allows the ions to be post-accelerated to very high energies before detection without a grid. In this way it is possible to reduce the acceleration energy of the ions before the flight path so that the high resolution is also measurable in practice due to increased flight times.
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David E. Schilke and Robert J. Levis, A Laser Vaporization, Laser Ionization Time-Of-Flight Mass Spectrometer For The Probing Of Fragile Biomolecules, Rev.Sci.Instrum. 65(6), Jun. 1994, American Institute of Physics, pp. 1903-1911.
Bruker Daltonik GmbH
Nguyen Kiet T.
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