Influence of Coulomb effects on the resolving power of multireflection mass-spectrometer systems
| Autor: | Alexander Makarov, D E Greenfield, I. A. Kopaev, S. S. Alimpiev, M. G. Skoblin, Mikhail A. Monastyrskiy |
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| Rok vydání: | 2015 |
| Předmět: |
Coalescence (physics)
Physics Analyser Statistical and Nonlinear Physics Elementary particle Mass spectrometry Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Ion Bunches Electrode Coulomb Physics::Accelerator Physics Electrical and Electronic Engineering Atomic physics |
| Zdroj: | Quantum Electronics. 45:1171-1178 |
| ISSN: | 1468-4799 1063-7818 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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