Abstract
AbstractAlthough cylindrical Penning ion traps are commonly used in atomic physics and in Fourier transform ion cyclotron resonance mass spectrometry (FT‐ICRMS or FTMS), such traps offer far from ideal dipolar excitation/detection and azimuthal quadrupolar axialization performance. Here it is shown that by applying r.f. voltages of just two (± V0) or three (0, ± V0) different amplitudes to appropriately spaced electrode segments, a cylindrical trap can produce nearly linear dipolar excitation/detection and nearly azimuthal quadrupolar excitation for ion axialization. Moreover, voltages are applied directly, rather than through a complex resistive or capacitive voltage dividing network as in prior designs. Advantages of the present design are confirmed by potential simulations and signal harmonic analysis.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call