Influence of Coulomb effects on the resolving power of multireflection mass-spectrometer systems

General theoretical approaches to the modelling of Coulomb effects in short ion bunches, developed previously by the authors, are applied in this paper to the calculation of multireflection mass-spectrometer systems. A separate module of the MASIM 3D applied software package is designed. An adaptive...

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Published inQuantum electronics (Woodbury, N.Y.) Vol. 45; no. 12; pp. 1171 - 1177
Main Authors Skoblin, M.G., Kopaev, I.A., Greenfield, D.E., Makarov, A.A., Monastyrskiy, M.A., Alimpiev, S.S.
Format Journal Article
LanguageEnglish
Published United States Turpion Ltd and the Russian Academy of Sciences 01.01.2015
Subjects
COALESCENCE
Coalescing
COMPUTER CODES
COULOMB FIELD
Coulomb friction
Coulomb interaction
Dynamic tests
Dynamics
ELECTRODES
ELEMENTARY PARTICLES
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
IONS
MASS SPECTROMETERS
Mathematical models
multireflection mass-spectrometer system
perturbation theory
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Resolution
self-bunching and coalescence of ion bunches
SIMULATION
Three dimensional
TIME-OF-FLIGHT METHOD
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Summary:General theoretical approaches to the modelling of Coulomb effects in short ion bunches, developed previously by the authors, are applied in this paper to the calculation of multireflection mass-spectrometer systems. A separate module of the MASIM 3D applied software package is designed. An adaptive computational procedure for calculating the 'mirror potential' induced by an ion bunch on the surface of field-forming electrodes is proposed. The dynamics of ion bunches in a time-of-flight reflectron-type mass analyser is calculated and the limitations on the resolving power, caused by resonant Coulomb effects of self-bunching and coalescence in the groups of particles with close masses, are revealed on the basis of numerical experiments.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:1063-7818
1468-4799
DOI:10.1070/QE2015v045n12ABEH015847