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Analysis of non-linear ion drift in spectrometers of ion mobility increment with
cylindrical drift chamber A.A. Elistratov,a S.V. Shibkova and E.N. Nikolaevb
aThe Institute for
Cryptosystems, Communication and Informatics, Moscow
bThe Institute for Energy Problems of Chemical Physics Russian Academy of Science, Moscow
ABSTRACT:
A
model for the drift of ions under a non-uniform, high-frequency electric field in the drift chamber of a spectrometer of ion mobility increment is developed. For the general
dependence of the ion mobility on the electric field strength and the general time-dependence of the separating voltage, we suggest a procedure for calculating of the ion peak
form. The shape of the peak for the ion focusing and defocusing conditions has been obtained.
Keywords:
ion mobility, theory, FAIMS, differential ion mobility
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