Evolution of an ion cloud in a Fourier transform ion cyclotron resonance mass spectrometer during signal detection: its influence on spectral line shape and position

Eugene N. Nikolaev, Nickolay V. Miluchihin, Masao Inoue

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

The factors responsible for temporal variation of the detected frequency in an FT ion cyclotron resonance (ICR) spectrometer are analysed. The time-dependent frequency behaviour is believed to be caused by a change in ion cloud configuration, the number of detected ions, and the ion cloud position in the electric field of the ICR cell. The spectral peak shape is calculated for an ensemble of non-interacting ions distributed over amplitudes of axial oscillations. The influence of the Coulomb interaction on the signal and the spectral peak shape is studied by a computer simulation using a highly parallel computer.

Original languageEnglish
Pages (from-to)145-157
Number of pages13
JournalInternational Journal of Mass Spectrometry and Ion Processes
Volume148
Issue number3
DOIs
Publication statusPublished - 20 Oct 1995
Externally publishedYes

Keywords

  • Effective frequency
  • Fourier transform mass spectrometry
  • Frequency drift
  • Inhomogeneous electric field
  • Ion cyclotron resonance

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