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    Systems, methods, and devices for generating predominantly radially expanded plasma flow
    1.
    发明授权
    Systems, methods, and devices for generating predominantly radially expanded plasma flow 有权

    公开(公告)号：US12058801B2

    公开(公告)日：2024-08-06

    申请号：US18538270

    申请日：2023-12-13

    申请人： PLASMA SURGICAL, INC.

    发明人： Nikolay Suslov

    IPC分类号： H05H1/46 ,  H05H1/02 ,  H05H1/54

    CPC分类号： H05H1/46 ,  H05H1/02 ,  H05H1/54 ,  H05H2242/22

    摘要： Systems, devices, and methods generating a plasma flow are disclosed. A method may include applying energy that alternates between being at a base level for a first duration and at a pulse level for a second duration according to a controlled pattern, generating a plasma flow having a directional axis, and discharging the plasma flow alternating between a base configuration and a pulse configuration according to the controlled pattern. The plasma flow in the base configuration may have (1) a first temperature at the outlet and (2) a first flow front that advances along the directional axis. The plasma flow in the pulse configuration may have (1) a second temperature at the outlet that is greater than the first temperature and (2) a second flow front that advances along the directional axis at a speed greater than the first flow front.

    Microwave plasma source
    8.
    发明授权
    Microwave plasma source 有权

    公开(公告)号：US11259397B2

    公开(公告)日：2022-02-22

    申请号：US16652434

    申请日：2018-11-22

    申请人： Japan Aerospace Exploration Agency

    发明人： Hitoshi Kuninaka

    IPC分类号： H05H1/46 ,  H05H1/02

    摘要： In a microwave plasma source, a tubular magnet portion has a first opening end and a second opening end. The first opening end has a first polarity, and the second opening end has a second polarity. The tubular body is surrounded by the tubular magnet portion. A first magnetic circuit portion closes the first opening end. A second magnetic circuit portion is disposed opposite to the first magnetic circuit portion. The second magnetic circuit portion has a first opening part. An antenna penetrates the first magnetic circuit portion, is introduced to a space, and supplies microwave power to the space. The nozzle portion has a second opening part that has a smaller opening area than the first opening part and communicates with the first opening part. When an inner diameter of the tubular body is represented by a (mm), and a microwave cutoff wavelength of the microwave power being supplied to the space is represented by λ (mm), the microwave plasma source is configured to satisfy a relational expression λ>3.41×(a/2).