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    Method and apparatus for terahertz or microwave imaging
    1.
    发明授权
    Method and apparatus for terahertz or microwave imaging 有权

    公开(公告)号：US11874227B2

    公开(公告)日：2024-01-16

    申请号：US17281798

    申请日：2019-09-23

    Applicant: The University of Durham

    Inventor： Kevin Weatherill ,  Charles Adams

    IPC: G01N21/64 ,  G01N22/00

    CPC classification number: G01N21/6458 ,  G01N22/00

    Abstract: An apparatus and method for imaging using microwave or terahertz radiation are described. The apparatus comprises: a cell comprising a vapour of atoms; one or more laser beams propagating through said cell, said one or more laser beams defining a sensing region in said cell; an imaging beam for illuminating an object receiving area for receiving an object to be imaged, said imaging beam comprising microwave or terahertz radiation; an imaging system for focusing the imaging beam to form, in use, an image of said object at said sensing region in said cell; wherein respective frequencies of said one or more laser beams and said imaging beam are such that at least some of said atoms, when subjected to radiation of both said one or more laser beams and said imaging beam, are excited to a final excited state which decays to a lower energy state by emission of optical fluorescence.

    Superconducting magnet
    2.
    发明授权
    Superconducting magnet 有权

    公开(公告)号：US11646138B2

    公开(公告)日：2023-05-09

    申请号：US16611840

    申请日：2018-05-09

    Applicant: UNIVERSITY OF DURHAM

    Inventor： Damian Hampshire

    IPC: H01F6/06 ,  G21B1/05 ,  G21B1/11 ,  H01F6/00

    CPC classification number: G21B1/057 ,  G21B1/11 ,  H01F6/00 ,  H01F6/06

    Abstract: A superconducting magnet for producing part of a substantially toroidal field in a device is described. The magnet comprises: a set of conductors comprising one or more first conductors (31f) and one or more second conductors (32f), and a set of joints (33). Each of the joints (33) connects a region of a first conductor (31f) with a region of a second conductor (32f) to form a series of alternating first and second conductors corresponding to at least part of a winding of the magnet. Each of the joints (33) is positioned away from a midplane of the toroidal field. The joints (33) are positioned on alternating sides of the midplane. Each first conductor (3 If) passes through the midplane at a smaller distance from an axis of rotation of the toroidal field than does each second conductor (32f). Each of the regions is elongate and extends in a direction at least partly away from the midplane.

    Method and Apparatus for Terahertz or Microwave Imaging
    4.
    发明申请
    Method and Apparatus for Terahertz or Microwave Imaging 有权

    公开(公告)号：US20210389248A1

    公开(公告)日：2021-12-16

    申请号：US17281798

    申请日：2019-09-23

    Applicant: The University of Durham

    Inventor： Kevin Wetherill ,  Charles Adams

    IPC: G01N21/64 ,  G01N22/00

    Abstract: An apparatus and method for imaging using microwave or terahertz radiation are described. The apparatus (10) comprises: a cell (12) comprising a vapour of atoms; one or more laser beams (14) propagating through said cell (12), said one or more laser beams (14) defining a sensing region (15) in said cell (12); an imaging beam (16) for illuminating an object receiving area for receiving an object (18) to be imaged, said imaging beam (16) comprising microwave or terahertz radiation; an imaging system (20, 22) for focussing the imaging beam (16) to form, in use, an image of said object (18) at said sensing region (15) in said cell (12); wherein respective frequencies of said one or more laser beams (14) and said imaging beam (16) are such that at least some of said atoms, when subjected to radiation of both said one or more laser beams (14) and said imaging beam (16), are excited to a final excited state which decays to a lower energy state by emission of optical fluorescence (24).

    Method and apparatus for electrochemical etching
    8.
    发明授权
    Method and apparatus for electrochemical etching 有权

    公开(公告)号：US10465310B2

    公开(公告)日：2019-11-05

    申请号：US15309022

    申请日：2015-04-28

    Applicant: THE UNIVERSITY OF DURHAM

    Inventor： Richard Stone ,  Dagou Zeze

    IPC: C25F3/02 ,  C25F7/00 ,  C25F3/00 ,  C25D5/00

    Abstract: A method and apparatus for electrochemical etching are disclosed. The method comprises immersing parts of objects (2) to be etched in an electrolyte (4), applying a voltage between the objects (2) and at least one electrode (6) to cause an electrochemical reaction between the objects (2) and the electrolyte (4), and positioning the objects (2) and electrodes (6) relative to each other such that a reaction product accumulates on the objects (2) during the reaction to reduce the rate of the reaction.

    TISSUE STRUCTURE SCAFFOLDS
    10.
    发明申请
    TISSUE STRUCTURE SCAFFOLDS 审中-公开

    公开(公告)号：US20190134264A1

    公开(公告)日：2019-05-09

    申请号：US16095420

    申请日：2017-05-12

    Applicant: UNIVERSITY OF DURHAM

    Inventor： Junjie WU ,  Ross CARNACHAN ,  Stefan PRZYBORSKI

    IPC: A61L27/26 ,  A61L27/56

    Abstract: A method of forming a scaffold comprises the steps of: preparing a high internal phase emulsion (HIPE) comprising an aqueous solution of: proteins selected from the group consisting of collagen and mixtures of collagen and chitosan; and a cross-linking agent; by addition of an immiscible solvent to the solution to form the HIPE; reducing the temperature of the HIPE to solidify the HIPE; removing water and solvent by vaporisation at a temperature above the melting point of the solvent to form a porous structure; and before or after removal of solvent, causing cross-linking of the protein with the cross-linking agent to form a crosslinked scaffold structure.

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