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公开(公告)号：US20230298873A1
公开(公告)日：2023-09-21
申请号：US18041462
申请日：2021-08-10
Applicant: ADAPTAS SOLUTIONS PTY LTD
Inventor： Aditya Wakhle , Russell Jurek , Kevin Hunter
Abstract: The present invention relates to electron multiplier apparatus of the type used in ion detectors. In one form, the invention is an electron multiplier having two or more electron emissive surfaces, each having a different composition so as to together limit or overcome an acute gain effect on the electron multiplier due to the exposure of the two or more electron emissive surfaces to water molecules. Alternatively, the multiplier may have a single electron emissive surface of mixed composition comprising a first composition component and a second composition component so as to together limit or overcome an acute gain effect on the electron multiplier due to the exposure of the electron emissive surface to water molecules.
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公开(公告)号：US11410839B2
公开(公告)日：2022-08-09
申请号：US17282472
申请日：2019-08-26
Applicant: ADAPTAS SOLUTIONS PTY LTD
Inventor： Russell Jurek , Kevin Hunter
Abstract: An electron multiplier apparatus of the type used in ion detectors, and modifications thereto for extending the operational lifetime or otherwise improving performance. The electron multiplier includes a series of discrete electron emissive surfaces configured to provide an electron amplification chain, the electron multiplier being configured so as to inhibit or prevent a contaminant from entering into, or passing partially through, or passing completely through the electron multiplier. The electron multiplier may include one or more baffles configured so as to decrease vacuum conductance of the electron multiplier compared to the same or similar electron multiplier not having one or more baffles.
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公开(公告)号：US10916413B2
公开(公告)日：2021-02-09
申请号：US16308193
申请日：2017-06-08
Applicant: ADAPTAS SOLUTIONS PTY LTD
Inventor： Wayne Sheils , Kevin Hunter
Abstract: An apparatus for amplifying an electron signal caused by the impact of a particle with an electron emissive surface. The apparatus includes: a first electron emissive surface configured to receive an input particle and thereby emit one or more secondary electrons, a series of second and subsequent electron emissive surfaces configured to form an amplified electron signal from the one or more secondary electrons emitted by the first electron emissive surface, and one or more power supplies configured to apply bias voltage(s) to one or more of the emissive surfaces. The bias voltage(s) is sufficient to form the amplified electron signal. The apparatus is configured such that the terminal electron emissive surface(s) of the series of second and subsequent electron emissive surfaces draw a higher electrical current than that of the remainder electron emissive surface(s). The apparatus may be used as part of detector in a mass spectrometer, for example.
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Patent Agency Ranking
公开(公告)号：US12224170B2
公开(公告)日：2025-02-11
申请号：US16617963
申请日：2018-06-01
Applicant: ADAPTAS SOLUTIONS PTY LTD
Inventor： Wayne Sheils , Richard Stresau , Kevin Hunter
Abstract: Components of scientific analytical equipment and to complete items of analytic equipment. An apparatus and methods useful for detecting an ion in mass spectrometry applications are provided. The apparatus may include an electron multiplier having a high sensitivity and low sensitivity sections, or the combination of an electron multiplier with a separately powered conversion dynode (and particularly a high energy conversion dynode), or the combination of a conversion dynode that is physically incorporated within or about an electron multiplier.
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公开(公告)号：US12224167B2
公开(公告)日：2025-02-11
申请号：US18497323
申请日：2023-10-30
Applicant: ADAPTAS SOLUTIONS PTY LTD
Inventor： Russell Jurek , Kevin Hunter
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.
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公开(公告)号：US11978616B2
公开(公告)日：2024-05-07
申请号：US17053192
申请日：2019-05-06
Applicant: ADAPTAS SOLUTIONS PTY LTD
Inventor： Russell Jurek , David Dellagiacoma , Kevin Hunter
CPC classification number: H01J43/28 , H01J49/025 , H01J49/26
Abstract: Components of scientific analytical equipment, such as electron multipliers and modifications thereto, for extending the operational lifetime or otherwise improving performance by way of improved construction. A detector includes one or more electron emissive surfaces and one or more detector elements configured to define on one side an environment internal the detector and on the other side an environment external the detector. The one or more detector elements are configured to inhibit or prevent flow of a gas from the environment external the detector to the environment internal the detector. Such detectors may be used in a mass spectrometry instrument, for example.
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公开(公告)号：US11948785B2
公开(公告)日：2024-04-02
申请号：US18041462
申请日：2021-08-10
Applicant: ADAPTAS SOLUTIONS PTY LTD
Inventor： Aditya Wakhle , Russell Jurek , Kevin Hunter
Abstract: The present invention relates to electron multiplier apparatus of the type used in ion detectors. In one form, the invention is an electron multiplier having two or more electron emissive surfaces, each having a different composition so as to together limit or overcome an acute gain effect on the electron multiplier due to the exposure of the two or more electron emissive surfaces to water molecules. Alternatively, the multiplier may have a single electron emissive surface of mixed composition comprising a first composition component and a second composition component so as to together limit or overcome an acute gain effect on the electron multiplier due to the exposure of the electron emissive surface to water molecules.
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公开(公告)号：US20210142992A1
公开(公告)日：2021-05-13
申请号：US17053192
申请日：2019-05-06
Applicant: ADAPTAS SOLUTIONS PTY LTD
Inventor： Russell Jurek , David Dellagiacoma , Kevin Hunter
Abstract: Components of scientific analytical equipment, such as electron multipliers and modifications thereto, for extending the operational lifetime or otherwise improving performance by way of improved construction. A detector includes one or more electron emissive surfaces and one or more detector elements configured to define on one side an environment internal the detector and on the other side an environment external the detector. The one or more detector elements are configured to inhibit or prevent flow of a gas from the environment external the detector to the environment internal the detector. Such detectors may be used in a mass spectrometry instrument, for example.
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