FIELD: physics.
SUBSTANCE: analyser has an electrode system and two electrodes which bound the electrode system on the z axis, with two holes in one of said electrodes for inlet and outlet of analysed ions. Coordinate values of the centres of the holes for inlet and outlet of ions on similar coordinate axes are equal in magnitude, but at least one pair of corresponding coordinate values has different signs.
EFFECT: high resolution and sensitivity of the mass-spectrometer.
3 dwg
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