Time of flight mass spectrometer

Details Time of flight mass spectrometer Time of flight mass spectrometer

1987-03-27

1988-09-27

Fields, Carolyn E.

Radiant energy

Ionic separation or analysis

Ion beam pulsing means with detector synchronizing means

250294, 250298, 250396R, H01J 4940

Patent

active

047744081

ABSTRACT:
A time of flight mass spectrometer is disclosed comprised of a deflection field for ion parcels including at least one pair of inner and outer electrodes. The inner and outer electrodes present ion guiding surfaces which in planes normal to the ion flight path are convex and concave, respectively, and more closely spaced at their edges than at any mediate location.

REFERENCES:
patent: 3061720 (1962-10-01), Ewald
patent: 3863068 (1975-01-01), Poschenrieder
Poschenrieder, "Multiple-Focusing Time of Flight Mass Spectrometers Part I. TOFMS with Equal Momentum Acceleration", International Journal of Mass Spectrometry and Ion Physics, vol. 6, 1971, pp. 413-426.
Poschenrieder, "Multiple-Focusing Time of Flight Mass Spectrometers Part II. TOFMS with Equal Energy Acceleration", International Journal of Mass Spectrometry and Ion Physics, vol. 9, 1972, pp. 357-373.
Sakurai et al, "Ion Optics for Time-of-Flight Mass Spectrometers with Multiple Symmetry", International Journal of Mass Spectrometry and Ion Processes, vol. 63, 1985, pp. 273-287.
Sakurai et al, "A New Time-of-Flight Mass Spectrometer", International Journal of Mass Spectrometry and Ion Processes, vol. 66, 1985, pp. 283-290.
Sakurai et al, "Particle Flight Times in a Toroidal Condenser and an Electric Quadrupole Lens in the Third Order Approximation", International Journal of Mass Spectrometry and Ion Processes, vol. 68, 1986, pp. 127-154.

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