Mass of the charged particle exiting behind the aperture of the mass spectrometer.
Charge of a particle shot into the mass spectrometer.
Radius of the semicircular orbit of the particle created behind the aperture.
Distance between the two electrodes of the capacitor.
Voltage between the capacitor plates.
External magnetic field in which the plate capacitor is placed. This magnetic field is also outside the capacitor behind the aperture. This field is responsible for the charge to perform a circular motion.