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US 8,946,624 B2Granted
Mass spectrometer having an external detector
Assignee1st Detect Corporation
InventorsDavid Rafferty, Michael Spencer
Life of this patent
Estimating the term…
Abstract
A mass spectrometer system is disclosed. The mass spectrometer includes a vacuum chamber defining an enclosed evacuated space and an ion trap disposed in the enclosed space. The ion trap is configured to trap an ionized sample. The mass spectrometer further includes an ion detector coupled to the chamber at a location external to the chamber such that sample ions may exit the evacuated space and into the externally-coupled detector without loss of vacuum pressure.
Claims20
A mass spectrometer system, comprising:
- a vacuum chamber defining an enclosed evacuated space;
- an ion trap disposed in the enclosed space, the ion trap being configured to trap an ionized sample;
- and
- an ion detector coupled to the chamber at a location external to the chamber, such that sample ions may exit the evacuated space and into the externally-coupled detector without loss of vacuum pressure.
1 more element
A mass spectrometer system, comprising:
- a chamber configured to be maintained under vacuum, the chamber including:
- an ion trap configured to capture ions generated when a sample is ionized by electrons emitted from an electron source;
- and
- an ion detector configured to detect ions ejected from the ion trap, the ion detector including a tube configured to be maintained under vacuum, the tube being coupled to a wall of the chamber at a location external to the chamber.
1 more element
A mass spectrometer system, comprising:
- a chamber defining an enclosed space configured to be maintained under vacuum, the chamber including:
- an electron source configured to emit ions;
- an ion trap including:
- a ring electrode;
- and
- first and second end cap electrodes which are arranged on opposite sides of the ring electrode, wherein the first end cap electrode includes a first aperture through which electrons emitted by an electron source enter the ion trap, and the second end cap electrode includes a second aperture through which ions are discharged from the ion trap;
- and
- an ion detector configured to detect an amount of ions ejected from the ion trap, the ion detector being coupled to the chamber at a location external to the chamber.
5 more elements
Dependencies are inferred from the claim text.