Faraday cup of ion receiver of thermal ionization mass spectrometer
By using a non-metallic receiver holder and a Faraday cup made of graphite, the problem of electron interference from metal reflection was solved, enabling more accurate ion measurement.
CN223665408UActive Publication Date: 2025-12-12HUBEI UNIV OF TECH
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Patent Information
- Application Number
- CN202423196787.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-11-14
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Technical Problem
In existing thermal ionization mass spectrometers, the Faraday cup is made of stainless steel, which causes reflected electrons to interfere with ion measurement and affect the accuracy of the measurement results.
Method used
A non-metallic receiving bracket and non-metallic receiving electrodes are used, combined with an external fixed metal plate to form a Faraday cup. This retains the rigidity of the metal but prevents ions from rebounding inside. Graphite material is used to absorb ions and reduce interference.
Benefits of technology
It effectively reduces interference in ion measurements and improves measurement accuracy.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses a Faraday cup of an ion receiver of a thermal ionization mass spectrometer, which comprises a non-metal receiving support, a non-metal receiving electrode and a pair of external fixing metal plates, the non-metal receiving support is concaved inwards to form a notch communicated with the outside, the non-metal receiving electrode is arranged in the notch, and the external fixing metal plates are fixed on the non-metal receiving support. The pair of external fixing metal plates are oppositely fixed on the two side surfaces of the non-metal receiving bracket, and the external fixing metal plates and the non-metal receiving bracket are encircled to enable the notch to only have a state that the top is communicated with the outside, so that the whole Faraday cup retains the rigidity of metal, the outside is not easy to deform, and the service life of the Faraday cup is prolonged. The non-metallic material is adopted in the device, so that the device has the characteristic of not rebounding ions, interference on ion measurement can be effectively reduced, and the measurement accuracy is improved.
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