resonance ion ejection

https://doi.org/10.1351/goldbook.12556
Mode of ion ejection in an ion trap that relies on an auxiliary radio frequency potential that is applied to the end-cap or trapping electrodes. The potential is tuned to the classical oscillation frequency of a particular ion to eject it.
Source:
PAC, 2013, 85, 1515. (Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)) on page 1586 [Terms] [Paper]