Mass spectrometer

Details Mass spectrometer Mass spectrometer

1985-10-03

1987-09-15

Church, Craig E.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250298, 250292, 250396R, 250281, H01J 4930, H01J 4932

Patent

active

046941690

ABSTRACT:
When AC voltages in-phase to each other are superposed on the DC voltages applied to a pair of opposing electrodes of a quadrupole lens, the waveform of the intensity of the ion beam is disturbed only if the central orbit of ions is deviated from the center of the quadrupole lens. In view of this, adjustment of the central orbit of ions is facilitated with the help of variations in the waveform of the intensity of the ion beam while superposing the AC voltages in-phase to each other on the DC voltages applied thereto.

REFERENCES:
patent: 4107527 (1978-08-01), Cherepin et al.
Vogt et al., Journal of Physics E: Scientific Instruments, vol. 9, 1976, pp. 38-40.
Blauth, Dynamic Mass Spectrometers, 1966, pp. 140-141.

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