Journal
PHYSICAL REVIEW E
Volume 104, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.104.065202
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Funding
- Weizmann Institute of Science
- US National Science Foundation [PHY-1565546, PHY-2111185]
- Institute for Cyber-Enabled Research at Michigan State University
- ISRAEL SCIENCE FOUNDATION [1214/17]
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The simulation technique developed to study space charge interaction in EIBT reveals the significance of space charge in both dispersive and self-bunching regime, affecting trapping efficiency and mass spectrometer performance. The numerical results reproduce experimental data and emphasize the critical importance of considering space charge effects in ion trap dynamics even at low ion density.
We developed a simulation technique to study the effect of space charge interaction between trapped ions in the electrostatic ion beam trap (EIBT). The importance of space charge is demonstrated in both the dispersive and the self-bunching regime of the ion trap. The simulation results provide an estimate for the space charge effect on the trapping efficiency. They also allow for a better understanding of the enhanced diffusion and the self-bunching effect and provide a better characterization of the EIBT as a mass spectrometer, where peak coalescence is important. The numerical results reproduce all experimental data, demonstrating the critical importance of including space charge effects, even at low ion density, to understand the ion trap dynamics.
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