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Oscilloscope traces showing (a) 4 kV voltage lift over 1.5 ms, with 1000 Vp–p RF applied throughout, and (b) quench of RF and application of 500 V push/pull extraction voltages. (c) 200 Hz cycle of the high- and low-pressure regions, along with activation of the ion injecting “split lens” that admits ions from the quadrupole filter.
