Nonlinear field effects in quadrupole mass filters

Schulte, J; Schevschenko, P; Radchik, A

Nonlinear field effects in quadrupole mass filters

Schulte, J

Schevschenko, P Radchik, A

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Publisher:: The American Institute of Physics
Publication Type:: Journal Article
Citation:: Review of Scientific Instrument, 1999, 70 (9), pp. 1 - 6
Issue Date:: 1999-01

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Field	Value	Language
dc.contributor.author	Schulte, J https://orcid.org/0000-0001-8845-8099	en_US
dc.contributor.author	Schevschenko, P	en_US
dc.contributor.author	Radchik, A	en_US
dc.date.issued	1999-01	en_US
dc.identifier.citation	Review of Scientific Instrument, 1999, 70 (9), pp. 1 - 6	en_US
dc.identifier.issn	0034-6748	en_US
dc.identifier.uri	http://hdl.handle.net/10453/8364
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.	en_US
dc.publisher	The American Institute of Physics	en_US
dc.relation.ispartof	Review of Scientific Instrument	en_US
dc.relation.isbasedon	https://aip.scitation.org/doi/10.1063/1.1149960	en_US
dc.rights	The following article has been submitted to/accepted by Review of Scientific Instrument. After it is published, it will be found at https://aip.scitation.org/doi/10.1063/1.1149960 .	en_US
dc.subject.classification	Applied Physics	en_US
dc.title	Nonlinear field effects in quadrupole mass filters	en_US
dc.type	Journal Article
utslib.citation.volume	9	en_US
utslib.citation.volume	70	en_US
utslib.for	020403 Condensed Matter Modelling and Density Functional Theory	en_US
utslib.for	02 Physical Sciences	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	09 Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	open_access
pubs.consider-herdc	false	en_US
pubs.issue	9	en_US
pubs.volume	70	en_US

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.

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http://hdl.handle.net/10453/8364