Improved ion guide geometry
By designing inner and outer electrode pairs in the ion guide and using the design of different electric field gradients, the problem of instability of ion guide under high RF voltage is solved, and more efficient and economical ion transmission is achieved.
JP2025510249AActive Publication Date: 2025-04-14THERMO FINNIGAN LLC
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Patent Information
- Application Number
- JP2024556733
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-03-25
- Filing Date
- 2023-03-27
- Publication Date
- 2025-04-14
- Estimated Expiration
- 2043-03-27
AI Technical Summary
Technical Problem
In the prior art, curvature ion guides tend to cause instability of the ion guide under high RF voltages, and require larger and more expensive power supplies, which affects the efficiency and stability of ion transmission.
Method used
By designing inner and outer electrode pairs in an ion guide, the inner and outer electrodes have different electric field gradients and the outer electrodes provide a higher electric field gradient to ensure stable transmission of ions in the curvature path.
Benefits of technology
Reduces the need for RF voltage, reduces the cost and complexity of the power supply, while improving the stability and transmission efficiency of the ion conductor.
✦ Generated by Eureka AI based on patent content.
Abstract
It is proposed to improve the transmission of ions along the curved path of the ion guide by varying the separation between adjacent multipole rods in the plane of the curve. As the separation increases along the length of the device, the confinement of ions in the plane of the curve decreases. At the same time, the penetration of external fields from the outer electrodes of the main ion guide increases, which can be used to create additional DC electric field gradients to enhance ion confinement and movement through the ion guide.
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