Particle detector having improved performance and service life
AssigneeAdaptas Solutions Pty Ltd
InventorsRussell Jurek, Kevin Hunter
Life of this patent
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Abstract
Components of scientific analytical equipment. More particularly, ion detectors of the type which incorporate electron multipliers and modifications thereto for extending the operational lifetime or otherwise improving performance. The ion detector may be embodied in the form of a particle detector having one or more electron emissive surfaces and/or an electron collector surface therein, the particle detector being configured such that in operation the environment about the electron emissive surface(s) and/or the electron collector surface is/are different to the environment immediately external to the detector.
Claims20
An apparatus comprising:
- an electron multiplier comprising a series of electron emissive surfaces comprising a first electron emissive surface configured to receive a particle to be detected by the electron multiplier, and
- an enclosure extending about one or more of the series of electron emissive surfaces, the enclosure having an opening,
- wherein the electron multiplier has a long axis about which the series of electron emissive surfaces are disposed, and the enclosure opening is configured to allow a particle to be detected to traverse the long axis and be received by the first electron emissive surface.
An apparatus comprising:
- an electron multiplier comprising a series of electron emissive surfaces comprising a first electron emissive surface configured to receive a particle to be detected by the electron multiplier, and
- an enclosure extending about one or more of the series of electron emissive surfaces, the enclosure having an opening,
- wherein at least a portion of the first electron emissive surface extends beyond an edge of the enclosure opening.
An apparatus comprising:
- an electron multiplier comprising a series of electron emissive surfaces comprising a first electron emissive surface configured to receive a particle to be detected by the electron multiplier, and
- an enclosure extending about one or more of the series of electron emissive surfaces, the enclosure having an opening,
- wherein the enclosure has a terminal region adjacent the opening which encircles the first electron emissive surface.
Dependencies are inferred from the claim text.