ion spectrometer

By designing an ion spectrometer that combines energy spectral screening and mass spectrometry testing, energy screening and mass resolution of low- and medium-energy ion beams are achieved. This solves the problem that existing technologies cannot meet the calibration requirements of omnidirectional low-energy ion spectrometers and mass spectrometers, and realizes efficient calibration of low- and medium-energy ion beams.

CN121709508BActive Publication Date: 2026-05-29UNIV OF SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF SCI & TECH OF CHINA
Filing Date
2026-02-14
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing low- and medium-energy ion detection payloads cannot meet the calibration requirements of space omnidirectional low-energy ion spectrometers and mass spectrometers by simply testing the beam current density of the ion beam during the calibration process. More efficient mass resolution tools are needed.

Method used

An ion spectrometer was designed, which combines an energy spectrum screening device and a mass spectrometry testing device. By applying an electric field, ion beams of different energies are screened and distinguished. The energy spectrum screening device deflects the ion beam to be tested and allows target ions within a predetermined energy range to be emitted. The mass spectrometry testing device accelerates the target ions and keeps them flying at a constant speed to separate different ions and improve mass resolution.

Benefits of technology

It achieves effective screening and quality resolution of low-energy ion beams from 0.1 eV to 5000 eV, improves the accuracy and efficiency of the calibration process, and is suitable for ground calibration of low-energy ion detection payloads in space.

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Abstract

The present application provides a kind of ion spectrometer, it is related to the technical field of low energy ion detection in space, the ion spectrometer includes: energy spectrum screening device, by applying first electric field to multiple ion beams to be measured with different energy, so that multiple ion beams to be measured are deflected and allow target ions with predetermined energy range to exit, energy spectrum screening device includes: first shell;First pole plate is configured as arc and is installed to first shell, first pole plate and first shell are grounded;Second pole plate is electrically insulated and installed in first shell, is configured as arc concentric with first pole plate, by adjusting the voltage applied to second pole plate, variable first electric field is formed between second pole plate and first pole plate;Mass spectrum testing device, second electric field is applied to target ions, so that target ions are accelerated and keep uniform speed flight, to obtain the mass-to-charge ratio of multiple different ions based on the different flight time of multiple different ions in target ions, multiple different ions are separated.
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