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Spectrum of charged particle oscillations in an RF quadrupole field

  • Electron and Ion Beams, Accelerators
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Abstract

Variations in the spectral composition of ion oscillations within several stability regions of a quadrupole mass filter were studied. The frequency spectrum was shown to consist of two line systems. Side lines ωn=nω0±βω0/2 were observed in the oscillation spectrum near harmonics nω0 (n=0, 1, 2,...), where ω0 is the circular frequency of an RF field and β is the stability parameter. Near the boundaries of the stability regions, the oscillations took the form of beatings. For even values of the stability parameter, β=2k (k=1, 2,...), the beat frequency coincides with the fundamental frequency ω0 and, for β=2k−1, the main beat frequencies are ω0/2 and 3ω0/2.

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Authors and Affiliations

  1. Ryazan State Pedagogical University, Ryazan, 390000, Russia

    M. Yu. Sudakov

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  1. M. Yu. Sudakov
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Translated from Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 70, No. 3, 2000, pp. 37–43.

Original Russian Text Copyright © 2000 by Sudakov.

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Sudakov, M.Y. Spectrum of charged particle oscillations in an RF quadrupole field. Tech. Phys. 45, 322–329 (2000). https://doi.org/10.1134/1.1259625

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  • DOI: https://doi.org/10.1134/1.1259625

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