Mass spectrometer electron ionization bombardment technique having adjustable electric field using parallel electrode sets with heated filament producing ion beam sweep following complete space.

摘要

The electronic ionization bombardment has a magnetic induction field (B) created outside the unit. There is an electric field (E) adjustable uniformly perpendicular to the magnetic field and parallel to the electrodes (S1-Sn) , connected to a resistance bridge producing the voltage adjustment. A heated filament (f) produces ions between the first two electrodes. The ionizing beam sweeps all the space within the ionization volume.