Publication: Experimental ion mobility measurements in Xe-CF4 mixtures
Date
Authors
Veenhof, Robert J.
Authors
Cortez, André F.V.
Kaja, Magdalena A.
Escada, J. M.D.
Santos, M. A.G.
Neves, Pedro N.B.
Santos, Filomena P.
Borges, F. I.G.M.
Conde, Carlos A.N.
Advisor
Language
Type
Publisher:
IOP Publishing
Journal Title
Journal ISSN
Volume Title
Abstract
In this paper we present the results of the ion mobility measurements made in gaseous mixtures of xenon with carbon tetrafluoride (Xe-CF4) for pressures ranging from 6 to 10 Torr (8-10.6 mbar) and for low reduced electric fields in the 10 to 25 Td range (2.4-6.1 kV.cm(-1).bar(-1)), at room temperature. The time-of-arrival spectra revealed one or two peaks depending on the gas relative abundances, which were attributed to CF3+ and to Xe-2(+) ions. However, for Xe concentrations above 60%, only one peak remains (Xe-2(+)). The reduced mobilities obtained from the peak centroid of the time-of-arrival spectra are presented for Xe concentrations in the 5%-95% range.
Description
Source:
Keywords:
Keywords
Instruments & instrumentation, Charge transport and multiplicat ion in gas, Gaseous detectors, Ion sources (positiveions, negative ions, electron cyclotron resonance (ECR), electron beam (EBIS)), Ionization and excitation processes, CF3+, CHF3, CF4, Ionization, Cyclotrons, Electric fields, Ion sources, Ionization of gases, Mixtures, Negative ions, Positive ions, Time of arrival, Carbon tetrafluoride, Excitation process, Gaseous mixture, Ion-mobility measurements, Relative abundance, Electron cyclotron resonance
Citation
Cortez, A. F. V. vd. (2018). ''Experimental ion mobility measurements in Xe-CF4 mixtures''. Journal of Instrumentation, 13.