Phase synchronization of an ion ensemble by frequency sweep excitation in Fourier transform ion cyclotron resonance.

abstract

• The Fourier transform ion cyclotron resonance (FT-ICR) signal is produced by the coherent motion of a population of ions. The ability to produce a well-defined ion packet by excitation of an initially random ion ensemble is a major limiting factor of high mass FT-ICR. Ions must be both resonant and in phase with the applied radio frequency excitation field to be accelerated to radii suitable for detection by FT-ICR. Synchronization of the phase angles of an ensemble of ions occurs by off-resonant acceleration during frequency swept excitation. Results from computer-simulated ion trajectories suggest that phase synchronization of the ion packet prior to resonant excitation results in better spatial definition of the ion ensemble.

authors

• Russell, David

published proceedings

• Anal Chem

author list (cited authors)

• Hanson, C. D., Castro, M. E., & Russel, D. H.

citation count

• 22

complete list of authors

• Hanson, CD||Castro, ME||Russel, DH

publication date

• October 1989

publisher

• American Chemical Society (ACS)  Publisher

published in

• Analytical Chemistry  Journal

keywords

• Computer Simulation
• Electrochemistry
• Electromagnetic Fields
• Electromagnetic Phenomena
• Ions
• Mass Spectrometry
• Monte Carlo Method

PubMed Central ID

• 2802162

Digital Object Identifier (DOI)

• 10.1021/ac00194a004

start page

• 2130

end page

• 2136

volume

• 61

issue

• 19

URL

• https://doi.org/10.1021/ac00194a004