Compact double focussing mass spectrometer

Details Compact double focussing mass spectrometer Compact double focussing mass spectrometer

1987-05-18

1989-06-27

Anderson, Bruce C.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250281, 250294, H01J 4932

Patent

active

048432393

ABSTRACT:
A compact double-focussing mass spectrometer comprises, in the order named long an ion beam path, an einzel lens for focussing ions entering through an entrance slit into an exit slit and for effecting angle focussing, further a magnetic deflection field and an electric sector field each having a deflection angle of 30 degrees and opposite directions of deflection and in combination effecting energy focussing. Since the deflection angles of the magnetic and electric fields are relatively small and have opposite directions, the net ion beam path is essentially straight, and therefore the mass spectrometer can be implemented by a compact structure.

REFERENCES:
patent: 3445650 (1969-05-01), Liebl
patent: 3517191 (1970-06-01), Liebl
patent: 4171482 (1979-10-01), Vastel

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