公开(公告)号：US1625427A

公开(公告)日：1927-04-19

申请号：US60164922

申请日：1922-11-17

Applicant: WESTINGHOUSE LAMP CO

Inventor： CLAYTON RENTSCHLER HARVEY ,  WESLEY MARDEN JOHN

IPC: H01J35/08

CPC classification number: H01J35/08

公开(公告)号：US20240136142A1

公开(公告)日：2024-04-25

申请号：US18070197

申请日：2022-11-28

Applicant: AweXome Ray, Inc.

Inventor： Hong Soo CHOI ,  Young Bae KIM ,  Hyeongu CHO ,  Namkyu LEE ,  Keunsoo JEONG ,  Se Hoon GIHM ,  Jiwon CHOI

IPC: H01J35/06 ,  H01J1/304 ,  H01J35/08 ,  H01J35/14

CPC classification number: H01J35/065 ,  H01J1/304 ,  H01J35/08 ,  H01J35/14 ,  H01J2201/30469 ,  H01J2235/06

Abstract: An emitter, a field emission assembly, and an electromagnetic wave generator are provided, and the emitter is an emitter for emitting electrons in an electromagnetic wave generator and is in the form of a sheet in which a plurality of yarns including carbon nanotube (CNT) fibers are weaved.

公开(公告)号：US20190189385A1

公开(公告)日：2019-06-20

申请号：US16282143

申请日：2019-02-21

Applicant: General Electric Company

Inventor： Yong Liang ,  Vance Scott Robinson

IPC: H01J35/08

CPC classification number: H01J35/08 ,  H01J2235/084 ,  H01J2235/088 ,  H01J2235/1291

Abstract: The present disclosure relates to multi-layer X-ray sources having decreased hydrogen within the layer stack and/or tungsten carbide inter-layers between the primary layers of X-ray generating and thermally-conductive materials. The resulting multi-layer target structures allow increased X-ray production, which may facilitate faster scan times for inspection or examination procedures.

公开(公告)号：US20190030363A1

公开(公告)日：2019-01-31

申请号：US16133423

申请日：2018-09-17

Applicant: Imagine Scientific, Inc.

Inventor： Eric H. Silver

IPC: A61N5/10 ,  H05G2/00 ,  A61B6/00

CPC classification number: A61N5/1007 ,  A61B6/025 ,  A61B6/405 ,  A61B6/4241 ,  A61B6/482 ,  A61B6/502 ,  A61B6/542 ,  A61B6/583 ,  A61N5/10 ,  A61N2005/1087 ,  H01J35/08 ,  H01J35/186 ,  H01J2235/086 ,  H01J2235/16 ,  H05G2/00

Abstract: According to some aspects, a carrier configured for use with a broadband x-ray source comprising an electron source and a primary target arranged to receive electrons from the electron source to produce broadband x-ray radiation in response to electrons impinging on the primary target is provided. The carrier comprising a housing configured to be removeably coupled to the broadband x-ray source and configured to accommodate a secondary target capable of producing monochromatic x-ray radiation in response to incident broadband x-ray radiation, the housing comprising a transmissive portion configured to allow broadband x-ray radiation to be transmitted to the secondary target when present, and a blocking portion configured to absorb broadband x-ray radiation.

公开(公告)号：US20190017942A1

公开(公告)日：2019-01-17

申请号：US16032889

申请日：2018-07-11

Applicant: FEI Company

Inventor： Jorge Filevich

IPC: G01N23/046 ,  H01J35/08

CPC classification number: G01N23/046 ,  G01N2223/401 ,  G01N2223/419 ,  G21K7/00 ,  H01J35/08 ,  H01J2235/081 ,  H01J2235/086

Abstract: A method and system are disclosed for producing an x-ray image of a sample using a lamella-shaped target to improve the usual tradeoff between imaging resolution and image acquisition time. A beam of electrons impacts the lamella-shaped target normal to the narrower dimension of the lamella which then determines the virtual source size along that axis. For low-energy x-ray generation, the small electron penetration depth parallel to the wider dimension of the lamella determines the virtual source size along that axis. Conductive cooling of the target is improved over post targets with the same imaging resolution. The lamella-shaped target is long enough to ensure that the electron beam does not impact the support structure which would degrade the imaging resolution. Target materials may be selected from the same metals used for bulk or post targets, including tungsten, molybdenum, titanium, scandium, vanadium, silver, or a refractory metal.

公开(公告)号：US10070836B2

公开(公告)日：2018-09-11

申请号：US15022860

申请日：2014-09-10

Applicant: CANON KABUSHIKI KAISHA

Inventor： Takeo Tsukamoto

IPC: A61B6/00 ,  H01J35/08 ,  H05G1/00

CPC classification number: A61B6/502 ,  A61B6/4021 ,  H01J35/08 ,  H01J35/116 ,  H05G1/00

Abstract: An X-ray mammography system including an X-ray detecting unit and an X-ray generating unit. The X-ray detecting unit includes a detecting portion that detects X-rays that have passed through a breast. The X-ray generating unit includes a transmission type target and an electron emitting source and is configured to radiate X-rays toward the detecting portion when irradiated with electrons. The transmission type target has a target layer having an electron incidence surface. The distance between a normal to the target layer and a distal end, which is an end of an X-ray irradiated region of the detecting portion closer to the chest of the testee, is larger than the distance between the normal and a proximal end, which is an end of the X-ray irradiated region far away from the chest.

公开(公告)号：US20180090293A1

公开(公告)日：2018-03-29

申请号：US15280701

申请日：2016-09-29

Applicant: General Electric Company

Inventor： Yong Liang ,  Vance Scott Robinson

IPC: H01J35/12 ,  H01J35/06 ,  H01J35/10

CPC classification number: H01J35/08 ,  H01J2235/084 ,  H01J2235/088 ,  H01J2235/1291

Abstract: The present disclosure relates to multi-layer X-ray sources having decreased hydrogen within the layer stack and/or tungsten carbide inter-layers between the primary layers of X-ray generating and thermally-conductive materials. The resulting multi-layer target structures allow increased X-ray production, which may facilitate faster scan times for inspection or examination procedures.

公开(公告)号：US20180068823A1

公开(公告)日：2018-03-08

申请号：US15258631

申请日：2016-09-07

Applicant: General Electric Company

Inventor： Michael John Utschig ,  Uwe Wiedmann ,  Bruno Kristiaan Bernard De Man ,  Sergio Lemaitre ,  Mark Alan Frontera ,  Antonio Caiafa ,  Jiahua Fan ,  Adam Budde

IPC: H01J35/14 ,  H01J35/06 ,  H01J35/08 ,  H05G1/10

CPC classification number: H01J35/14 ,  H01J35/06 ,  H01J35/08 ,  H05G1/085 ,  H05G1/10 ,  H05G1/58

Abstract: An X-ray tube is provided. The X-ray tube includes an electron beam source including a cathode configured to emit an electron beam. The X-ray tube also includes an anode assembly including an anode configured to receive the electron beam and to emit X-rays when impacted by the electron beam. The X-ray tube further includes a gridding electrode disposed about a path of the electron beam between the electron beam source and the anode assembly. The gridding electrode, when powered at a specific level, is configured to grid the electron beam in synchronization with planned transitions during a dynamic focal spot mode.

公开(公告)号：US20180053624A1

公开(公告)日：2018-02-22

申请号：US15782186

申请日：2017-10-12

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yoichi Ikarashi

IPC: H01J35/16 ,  H01J35/08

CPC classification number: H01J35/16 ,  H01J35/08 ,  H01J35/116

Abstract: An X-ray generating tube includes: an anode including a target and an anode member electrically connected to the target; a cathode including an electron emitting source and a cathode member electrically connected to the electron emitting source; and an insulating tube joined at one end to the anode member and joined at the other end to the cathode member so that the target and the electron emitting portion face each other, in which an inner circumferential conductive film is formed on an inner surface of the insulating tube; an end surface conductive film extends from one edge of the inner circumferential conductive film on the one end side onto a surface of the one end of the insulating tube; and the end surface conductive film is sandwiched between the end surface and the anode member to be electrically connected to the anode member.

公开(公告)号：US09874531B2

公开(公告)日：2018-01-23

申请号：US14712917

申请日：2015-05-15

Applicant: Sigray, Inc.

Inventor： Wenbing Yun ,  Sylvia Jia Yun Lewis ,  Janos Kirz

IPC: G01N23/20 ,  G01N23/201 ,  A61B6/00 ,  G21K1/02 ,  H01J35/08

CPC classification number: G01N23/20075 ,  A61B6/4007 ,  A61B6/4291 ,  A61B6/484 ,  A61B6/508 ,  G01N23/201 ,  G21K1/02 ,  G21K2207/005 ,  H01J35/08 ,  H01J2235/086

Abstract: Periodic spatial patterns of x-ray illumination are used to gather information about periodic objects. The structured illumination may be created using the interaction of a coherent or partially coherent x-ray source with a beam splitting grating to create a Talbot interference pattern with periodic structure. The object having periodic structures to be measured is then placed into the structured illumination, and the ensemble of signals from the multiple illumination spots is analyzed to determine various properties of the object and its structures. Applications to x-ray absorption/transmission, small angle x-ray scattering, x-ray fluorescence, x-ray reflectance, and x-ray diffraction are all possible using the method of the invention.