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公开(公告)号：US10755827B1
公开(公告)日：2020-08-25
申请号：US16415300
申请日：2019-05-17
Applicant: Northrop Grumman Systems Corporation
Inventor： Vivian W. Ryan , Sameh S. Wanis , Carl B. Freidhoff , Clinton Ung
Abstract: An apparatus for radiation shielding is provided. The apparatus includes a first housing element and a first plurality of magnetic elements arranged in a first array on the first housing element. The first array is configured to generate a first tapered magnetic field and, using the first tapered magnetic field, deflect incoming radiation away from a protected element.
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公开(公告)号：US20200152437A1
公开(公告)日：2020-05-14
申请号：US16190651
申请日：2018-11-14
Applicant: Northrop Grumman Systems Corporation
Inventor： Vivian W. Ryan , Sameh S. Wanis , Carl B. Freidhoff , Clinton Ung
Abstract: An apparatus for particle collection is provided. The apparatus includes a magnetic element configured to generate a tapered magnetic ion transport tunnel that collects particles from a local environment, a detector configured to perform one or more measurements of the collected particles, and ion optics configured to transport the collected particles to the detector.
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Patent Agency Ranking
3.发明申请公开(公告)号：US20190096644A1
公开(公告)日：2019-03-28
申请号：US15718020
申请日：2017-09-28
Applicant: Northrop Grumman Systems Corporation
Inventor： Carl B. Freidhoff , Clinton Ung
Abstract: A space ion analyzer in a spacecraft includes an axis and an aperture to receive an ion stream. An ion focuser to focus the ion stream along the axis responsive to a focus voltage, and an ion deflector deflects ions from the axis based on energies of the ions and a deflector voltage difference applied across plates of the ion deflector. A mass spectrometer on a chip (MSOC) directs ions from the ion deflector to an ion detector array responsive to an MSOC voltage difference applied to the MSOC. A focus voltage generator generates the focus voltage as a variable voltage referenced to a spacecraft ground. A deflector voltage generator generates the deflector voltage difference with a controllable magnitude and referenced to the spacecraft ground. An MSOC voltage generator generates the MSOC voltage difference with a controllable magnitude and referenced to a breaking potential controllable relative to the spacecraft ground.
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公开(公告)号：US20230411134A1
公开(公告)日：2023-12-21
申请号：US18459749
申请日：2023-09-01
Applicant: Northrop Grumman Systems Corporation
Inventor： Vivian W. Ryan , Sameh S. Wanis , Carl B. Freidhoff , Clinton Ung
CPC classification number: H01J49/066 , H01J49/063 , H01J49/284
Abstract: An apparatus for particle collection is provided. The apparatus includes a magnetic element configured to generate a tapered magnetic ion transport tunnel that collects particles from a local environment, a detector configured to perform one or more measurements of the collected particles, and ion optics configured to transport the collected particles to the detector.
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公开(公告)号：US10319572B2
公开(公告)日：2019-06-11
申请号：US15718020
申请日：2017-09-28
Applicant: Northrop Grumman Systems Corporation
Inventor： Carl B. Freidhoff , Clinton Ung
Abstract: A space ion analyzer in a spacecraft includes an axis and an aperture to receive an ion stream. An ion focuser to focus the ion stream along the axis responsive to a focus voltage, and an ion deflector deflects ions from the axis based on energies of the ions and a deflector voltage difference applied across plates of the ion deflector. A mass spectrometer on a chip (MSOC) directs ions from the ion deflector to an ion detector array responsive to an MSOC voltage difference applied to the MSOC. A focus voltage generator generates the focus voltage as a variable voltage referenced to a spacecraft ground. A deflector voltage generator generates the deflector voltage difference with a controllable magnitude and referenced to the spacecraft ground. An MSOC voltage generator generates the MSOC voltage difference with a controllable magnitude and referenced to a breaking potential controllable relative to the spacecraft ground.
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公开(公告)号：US11749515B2
公开(公告)日：2023-09-05
申请号：US17088911
申请日：2020-11-04
Applicant: Northrop Grumman Systems Corporation
Inventor： Vivian W. Ryan , Sameh S. Wanis , Carl B. Freidhoff , Clinton Ung
CPC classification number: H01J49/066 , H01J49/063 , H01J49/284
Abstract: An apparatus for particle collection is provided. The apparatus includes a magnetic element configured to generate a tapered magnetic ion transport tunnel that collects particles from a local environment, a detector configured to perform one or more measurements of the collected particles, and ion optics configured to transport the collected particles to the detector.
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公开(公告)号：US20210050204A1
公开(公告)日：2021-02-18
申请号：US17088911
申请日：2020-11-04
Applicant: Northrop Grumman Systems Corporation
Inventor： Vivian W. Ryan , Sameh S. Wanis , Carl B. Freidhoff , Clinton Ung
Abstract: An apparatus for particle collection is provided. The apparatus includes a magnetic element configured to generate a tapered magnetic ion transport tunnel that collects particles from a local environment, a detector configured to perform one or more measurements of the collected particles, and ion optics configured to transport the collected particles to the detector.
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