Nonlinear field effects in quadrupole mass filters

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Show simple item record Schulte, J Schevschenko, P Radchik, A 2010-05-28T09:42:45Z 1999-01
dc.identifier.citation Review of Scientific Instrument, 1999, 70 (9), pp. 1 - 6
dc.identifier.issn 0034-6748
dc.identifier.other C1UNSUBMIT en_US
dc.description.abstract The performance of a quadrupole mass filter (QMF) generally degrades when using electrodes of circular cross section in place of mathematical ideal hyperbolic electrodes. The circular cross section of electrodes produces nonlinear resonances resulting in distortion and peak splitting in mass spectra. In addition, resonances reduce the actual working cross section, resulting in limited ion yield. In this article we study nonlinear resonances and intensities of resonance lines passing through the tip of the stability diagram of the QMF. We have found that balancing of multipole terms, rather than eliminating individual multipole terms, improves the sensitivity of the QMF considerably. The theory for assessing intensities of nonlinear resonances is presented in detail along with rescaling laws to adjust current QMF parameter settings. A general formula is presented from which the location and intensity of nonlinear can be derived, which then may be used for the design of special purpose QMFs.
dc.format Invalid Code
dc.publisher The American Institute of Physics
dc.title Nonlinear field effects in quadrupole mass filters
dc.type Journal Article
dc.parent Review of Scientific Instrument
dc.journal.volume 9
dc.journal.volume 70
dc.journal.number 9 en_US
dc.publocation Argonne en_US
dc.identifier.startpage 1 en_US
dc.identifier.endpage 6 en_US SCI.Physics and Advanced Materials en_US
dc.conference Verified OK en_US
dc.for 020403 Condensed Matter Modelling and Density Functional Theory
dc.personcode 912127
dc.personcode 960345
dc.percentage 100 en_US Condensed Matter Modelling and Density Functional Theory en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US
dc.location.activity en_US
dc.description.keywords mass spectrometer accessories, electrodes, resonance, nonlinear distortion
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
utslib.copyright.status Open Access 2015-04-15 12:23:47.074767+10
pubs.consider-herdc false
utslib.collection.history School of Physics and Advanced Materials (ID: 343)
utslib.collection.history General (ID: 2)

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