Optimization of a multi-reflection time-of-flight mass spectrometer with transaxial mirrors providing spatial and energy tof focusing

Authors

DOI:

https://doi.org/10.15587/1729-4061.2025.346298

Keywords:

multi-reflector time-of-flight mass spectrometers, transaxial electrostatic mirror, analytical expressions for potential

Abstract

This study explores a multi-reflection time-of-flight mass spectrometer (TOFMS) based on transaxial electrostatic mirrors providing spatial and energy time-of-flight focusing of the ion beam. Analysis of existing solutions reveals that spatial-energy time-of-flight focusing in compact TOFMSs is achieved using additional focusing elements, which complicates the design, limits resolution, and reduces sensitivity.

This paper demonstrates that three-electrode transaxial mirrors enable simultaneous spatial and energy time-of-flight focusing of ions without the use of additional focusing elements. Monte Carlo simulation of the beam dynamics has made it possible to determine the trajectories and flight times of ions under various initial conditions.

It was found that two closely spaced vertical focusing modes provide time-of-flight focusing of ions with a relative energy spread of . A mass resolution of 10,000 at half-maximum confirms the high efficiency of the proposed structure. The spatial distributions of the ion beam demonstrate stable focusing in the detector plane when modeling particles larger than 1000.

The results are attributed to the features of transaxial geometry, which enables three-dimensional spatial and energy time-of-flight focusing. The practical significance of this work is the applicability of such multi-reflector mass analyzers in laboratory and space research where a combination of high resolution and instrument compactness is required

Author Biographies

Tilektes Shugayeva, K. Zhubanov Aktobe Regional University

PhD, Senior Lecturer

Department of Physics

Igor Spivak-Lavrov, K. Zhubanov Aktobe Regional University

Doctor of Physical and Mathematical Sciences, Professor

Department of Physics

Orda Baisanov, T. Y. Begeldinov Military Institute of Air Defense

Candidate of Physical and Mathematical Sciences, Senior Lecturer

Department of Construction and Operation Radio-Electronic Equipment

Amangul Amantayeva, K. Zhubanov Aktobe Regional University

Doctoral Student

Department of Physics

References

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Optimization of a multi-reflection time-of-flight mass spectrometer with transaxial mirrors providing spatial and energy tof focusing

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Published

2025-12-23

How to Cite

Shugayeva, T., Spivak-Lavrov, I., Baisanov, O., & Amantayeva, A. (2025). Optimization of a multi-reflection time-of-flight mass spectrometer with transaxial mirrors providing spatial and energy tof focusing. Eastern-European Journal of Enterprise Technologies, 6(5 (138), 34–42. https://doi.org/10.15587/1729-4061.2025.346298

Issue

Vol. 6 No. 5 (138) (2025): Applied physics

Section

Applied physics

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Copyright (c) 2025 Tilektes Shugayeva, Igor Spivak-Lavrov, Orda Baisanov, Amangul Amantayeva

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