An ion detection device and a method of controlling an ion detection device
Intermittent gating in ion detection devices addresses detector degradation and calibration issues, enhancing dynamic range, stability, and reducing costs by controlling electron exposure, thus improving ion current measurements in ICP-MS.
Patent Information
- Authority / Receiving Office
- AU · AU
- Patent Type
- Applications
- Current Assignee / Owner
- THERMO FISHER SCI BREMEN
- Filing Date
- 2023-10-25
- Publication Date
- 2026-07-23
AI Technical Summary
Existing ion detection devices face challenges in achieving a wide dynamic range, stability, and longevity due to issues such as detector degradation, drift, and the need for frequent cross-calibration between analogue and counting modes, particularly in inductively coupled plasma mass spectrometry (ICP-MS).
Implementing intermittent gating in ion detection devices to control the number of multiplied electrons reaching the detector based on ion intensity, using repeating gating cycles with 'on' and 'off' periods, thereby reducing detector exposure and eliminating the need for analogue modes.
This approach enhances the dynamic range, improves stability and reproducibility, extends detector lifetime, and reduces the complexity and cost of the detection device by eliminating the need for analogue sections and calibration, while maintaining accurate ion current measurements across varying intensities.
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