title: Note: Optimized circuit for excitation and detection with one pair of electrodes for improved Fourier transform ion cyclotron resonance mass spectrometry.
abstract: A conventional Fourier transform-Ion Cyclotron Resonance (ICR) detection cell is azimuthally divided into four equal sections. One pair of opposed electrodes is used for ion cyclotron excitation, and the other pair for ion image charge detection. In this work, we demonstrate that an appropriate electrical circuit facilitates excitation and detection on one pair of opposed electrodes. The new scheme can be used to minimize the number of electrically independent ICR cell electrodes and/or improve the electrode geometry for simultaneously increased ICR signal magnitude and optimal post-excitation radius, which results in higher signal-to-noise ratio and decreased space-charge effects.
authors.affiliation: Institute of Molecular Biophysics, Florida State University, Tallahassee, Florida 32306, USA.
authors.forename: T
authors.initials: T
authors.lastname: Chen
authors.affiliation: S. C. Beu Consulting, 12449 Los Indios Trail, Austin, Texas 78729, USA.
authors.forename: S C
authors.initials: SC
authors.lastname: Beu
authors.affiliation: Ion Cyclotron Resonance Program, National High Magnetic Field Laboratory, Florida State University, 1800 East Paul Dirac Dr., Tallahassee, Florida 32310, USA.
authors.forename: N K
authors.initials: NK
authors.lastname: Kaiser
authors.affiliation: Ion Cyclotron Resonance Program, National High Magnetic Field Laboratory, Florida State University, 1800 East Paul Dirac Dr., Tallahassee, Florida 32310, USA.
authors.forename: C L
authors.initials: CL
authors.lastname: Hendrickson
mesh_terms: D017357:Cyclotrons; D004566:Electrodes; D005583:Fourier Analysis; D013058:Mass Spectrometry / Q000295:instrumentation / Q000379:methods