Quadrupole TOF mass spectrometer axial frequency question

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SUMMARY

The discussion centers on the axial motion and frequency of ions in a quadrupole Time-of-Flight (TOF) mass spectrometer. Participants explore the concept that, similar to a Penning trap, a quadrupole electric field may induce axial motion in ions. The inquiry specifically questions whether this axial motion generates a measurable frequency on the high-voltage (HV) rods of the TOF MS, suggesting a need for appropriate filter circuits to detect such frequencies. The conversation highlights the challenges in simulating these phenomena accurately.

PREREQUISITES
  • Understanding of quadrupole mass spectrometry principles
  • Knowledge of ion dynamics in electric fields
  • Familiarity with Time-of-Flight (TOF) mass spectrometry technology
  • Experience with simulation software for mass spectrometry
NEXT STEPS
  • Research the principles of axial motion in quadrupole mass spectrometers
  • Study the effects of electric fields on ion behavior in Penning traps
  • Explore high-voltage rod configurations in TOF mass spectrometers
  • Learn about filter circuits for measuring frequencies in mass spectrometry
USEFUL FOR

Researchers in mass spectrometry, physicists studying ion dynamics, and engineers developing quadrupole TOF MS systems will benefit from this discussion.

jonlg_uk
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Hi I have been searching the relevant literature but I cannot find if an ion traveling through a quadruple TOF MS will obtain an axial motion and frequency as a result? and will this axial motion induce a corresponding frequency on the HV rods that could be measured with the right filter circuit?

I thank you in advance


J
 
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I knew this question would be a long shot. But think about what happens in a penning trap, a quadrupole electric field induces an axial motion in the trapped ions. Why shouldn't this happen in a quadrupole TOF MS?


I just can get my simulation to show this :(
 

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