Multiplexed orthogonal time-of-flight mass spectrometer

Details Multiplexed orthogonal time-of-flight mass spectrometer Multiplexed orthogonal time-of-flight mass spectrometer

2005-05-31

2005-05-31

Berman, Jack I. (Department: 2881)

Radiant energy

Ionic separation or analysis

Methods

C250S287000, C702S023000

Reexamination Certificate

active

06900431

ABSTRACT:
A mass spectrometer and associated methods analyze an ion beam by accumulating ions for a sequence of time periods, and driving the accumulated ions in pulses. Differing quantities of ions can be accumulated in the sequential pulses according to a psuedo-random sequence, and the slower ions are overtaken by the faster ions of a subsequent pulse. A mass spectrum may be reconstructed from an overlapping ion detector signal using an inverse of a weighted simplex matrix or inverse Hadamard transform techniques.

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Selby et al., Demonstrating the effect of the ‘polarised grid geometry’ for orthogonal acceleration time-of-flight mass spectrometers, Rapid Commun. Mass Spectrom, (2000) vol. 14, pp. 616-617.
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