Particle detector having improved performance and service life

    公开(公告)号:US12224167B2

    公开(公告)日:2025-02-11

    申请号:US18497323

    申请日:2023-10-30

    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.

    ELECTRON TUBE
    115.
    发明公开
    ELECTRON TUBE 审中-公开

    公开(公告)号:US20240274421A1

    公开(公告)日:2024-08-15

    申请号:US18109388

    申请日:2023-02-14

    CPC classification number: H01J43/28 H01J43/08

    Abstract: An electron tube includes a photoelectric conversion unit, an electron detection unit configured to receive a photoelectrons from the photoelectric conversion unit, a gate electrode disposed between the photoelectric conversion unit and the electron detection unit, and a housing configured to accommodate the photoelectric conversion unit, the electron detection unit, and the gate electrode. The housing has a lid portion to which the photoelectric conversion unit is fixed and which constitutes one end side of the housing. The gate electrode includes a main body portion that control passage of the photoelectrons by applying a voltage, and a power supply part that supports the main body portion so as to be spaced apart from the photoelectric conversion unit and applies a voltage to the main body portion. The power supply part is held by the lid portion.

    Detector having improved construction

    公开(公告)号:US11978616B2

    公开(公告)日:2024-05-07

    申请号:US17053192

    申请日:2019-05-06

    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.

    ELECTRON TUBE
    118.
    发明申请

    公开(公告)号:US20220415638A1

    公开(公告)日:2022-12-29

    申请号:US17621322

    申请日:2020-06-11

    Abstract: An electron tube includes a housing having a window having an electromagnetic wave transmitting property, an electron emission plate disposed inside the housing, the electron emission plate emitting electrons, and a holding member disposed inside the housing and configured to hold the electron emission plate and to apply a voltage to the electron emission plate. The electron emission plate has a first main surface and a second main surface facing each other. The holding member has a base portion being in contact with the first main surface, and a plurality of electron emission plate biasing portions which are in contact with an edge of the second main surface and are configured to elastically bias the electron emission plate to the base portion. The holding member is electrically connected to the second main surface through the plurality of electron emission plate biasing portions.

    Light sensor assembly in a vacuum environment

    公开(公告)号:US11536604B1

    公开(公告)日:2022-12-27

    申请号:US16888856

    申请日:2020-06-01

    Abstract: An in-vacuum light sensor system, including a light sensor assembly comprising a photocathode configured for converting an impinging photon to a photoelectron, a semiconductor diode configured for multiplying the photoelectron impinging thereon, and a housing including vacuum-compatible materials configured for being placed in a vacuum chamber. The housing is configured for housing the photocathode and the semiconductor diode and for propagation of the photoelectron from the photocathode to the semiconductor diode. An electrical biasing subassembly is configured for electrically biasing at least the photocathode and the semiconductor diode, and the vacuum chamber is configured for positioning the light sensor apparatus therein.

    Detector Having Improved Construction

    公开(公告)号:US20210142992A1

    公开(公告)日:2021-05-13

    申请号:US17053192

    申请日:2019-05-06

    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.

Patent Agency Ranking