ion trap mass spectrometer
An arrangement in which ions with a desired range of quotients mass/charge are first made to describe @S05900@ paths under the effect of a high-frequency electric quadrupole field, and are then separated and presented to a detector by adjusting the field so as to @S05563@ induce path instability according to their respective mass/charge ratios.
PAC, 1991, 63, 1541. (Recommendations for nomenclature and symbolism for mass spectroscopy (including an appendix of terms used in vacuum technology). (Recommendations 1991)) on page 1545 [Terms] [Paper]