公开(公告)号：US20180033583A1

公开(公告)日：2018-02-01

申请号：US15220158

申请日：2016-07-26

Applicant: Neil Dee Olsen

Inventor： Neil Dee Olsen

IPC: H01J35/08

CPC classification number: H01J35/08 ,  H01J35/10 ,  H01J2235/081

Abstract: An anode for an X-ray tube can include a ceramic body, e.g., material that includes yttrium-oxide derivatives. Upon collision with an anode, the kinetic energy of an electron beam in an X-ray tube is converted to high frequency electromagnetic waves, i.e., X-rays. An anode with a ceramic body can reduce costs and/or weight, extend the life of the anode or associated components (e.g., bearings) and simultaneously provide a high heat storage capacity.

公开(公告)号：US09761405B2

公开(公告)日：2017-09-12

申请号：US14407654

申请日：2012-06-14

Applicant: Oliver Heid ,  Timothy Hughes ,  Jennifer Sirtl

Inventor： Oliver Heid ,  Timothy Hughes ,  Jennifer Sirtl

IPC: H01J35/10 ,  H01J35/08 ,  H01J35/24 ,  H01J35/06 ,  H01J35/22

CPC classification number: H01J35/10 ,  H01J35/06 ,  H01J35/08 ,  H01J35/22 ,  H01J35/24 ,  H01J2235/066 ,  H01J2235/087

Abstract: An x-ray source in which monochromatic x-rays can be produced is provided. A method for producing X-rays and to the use of the x-ray source for x-raying bodies is also provided. A metallic film is arranged in a housing as a target which is bombarded with the electron beam. As a result, the metallic film is excited for emitting monochromatic x-rays, the relatively thin-walled target being modified such that the intended use for producing monochromatic x-rays is no longer possible. Therefore, advantageously, the production device can be pivoted for producing the electron beam as well as being able to wind the target on rollers.

公开(公告)号：US09748070B1

公开(公告)日：2017-08-29

申请号：US14849647

申请日：2015-09-10

Applicant: Jordan Valley Semiconductors Ltd.

Inventor： John Leonard Wall

IPC: H01J35/10 ,  H01J35/08 ,  H01J35/18

CPC classification number: H01J35/106 ,  H01J35/08 ,  H01J35/14 ,  H01J35/18 ,  H01J2235/086 ,  H01J2235/088 ,  H01J2235/1204 ,  H01J2235/1262 ,  H01J2235/186

Abstract: An X-ray tube includes a cathode and an anode. The cathode is configured to generate an electron beam. The anode has at least one hole that faces the electron beam, the hole having sidewalls and a floor. The electron beam impinges on one or more of the sidewalls of the at least one hole so as to emit a first X-ray beam at angles that are not orthogonal to a surface of the anode. The electron beam also impinges on the floor of the at least one hole so as to emit a second X-ray beam, at least some of which is emitted at an angle that is orthogonal to the surface of the anode.

公开(公告)号：US20170231582A1

公开(公告)日：2017-08-17

申请号：US15519144

申请日：2015-10-13

Applicant: VATECH Co., Ltd. ,  VATECH EWOO Holdings Co., Ltd.

Inventor： Chang-Joon RO

IPC: A61B6/14 ,  H01J35/08 ,  H01J35/06 ,  A61B6/00

CPC classification number: A61B6/14 ,  A61B6/027 ,  A61B6/40 ,  A61B6/4007 ,  A61B6/4021 ,  A61B6/4435 ,  A61B6/4476 ,  H01J35/065 ,  H01J35/08 ,  H01J2235/068

Abstract: The present invention relates to a panoramic X-ray imaging apparatus capable of obtaining more accurate panoramic X-ray images while minimizing the rotation of a rotation arm, the panoramic X-ray imaging apparatus includes at least one X-ray source configured to irradiate X-rays and an X-ray sensor configured to receive the X-rays, a rotating arm configured to position the X-ray sensor and the X-ray source to face each other, a driver configured to rotate the rotating arm about a rotating shaft, a guide configured to provide directions for moving the X-ray sensor or the X-ray source, and wherein the at least one X-ray source is of an electric field emission type adopting an emitter of a nanostructure material and the X-ray source or the X-ray sensor is relatively movable along the guide in conjunction with a movement of the rotating arm.

公开(公告)号：US20170221670A1

公开(公告)日：2017-08-03

申请号：US15326162

申请日：2014-07-17

Applicant: Siemens Aktiengesellschaft

Inventor： Taras BONDARENKO ,  Alexandra BOTYACHKOVA ,  Gennadiy KARPINSKIY ,  Stepan POLIKHOV

IPC: H01J35/08 ,  B05B17/00 ,  B05B1/08 ,  B05B17/06

CPC classification number: H01J35/08 ,  B05B1/086 ,  B05B17/0646 ,  B05B17/0669 ,  H01J2235/082

Abstract: A fluid injector for x-ray tubes and a method to provide a liquid anode by liquid metal injection, wherein the fluid injector includes a device to inject fluid from an opening in a chamber of the device as a fluid jet generated by an arrangement to change the volume within the chamber, and includes a reservoir to store the anode material, which is fluidically connected by a pipe with the chamber of the device, where the pipe has a part formed in the fluid flow direction that is shaped to block fluid flow from the chamber to the reservoir during injection, and where the includes injecting fluid in a direction towards an electron beam and refilling the chamber with liquid metal from the reservoir.

公开(公告)号：US09721749B2

公开(公告)日：2017-08-01

申请号：US14837745

申请日：2015-08-27

Applicant: HITACHI HIGH-TECH SCIENCE CORPORATION

Inventor： Ryusuke Hirose ,  Haruo Takahashi

IPC: G01N23/223 ,  H01J35/06 ,  H01J35/08 ,  H05G1/02 ,  H01J35/16

CPC classification number: H01J35/16 ,  G01N23/223 ,  H01J35/06 ,  H01J35/08 ,  H05G1/02

Abstract: The present invention provides an X-ray generator including an X-ray tube 2 radiating primary X-rays X1 to a specimen S, a housing 3 accommodating the X-ray tube 2, an X-ray radiation area controller 4 limiting the radiation area of the primary X-rays X1 from the X-ray tube 2 to the specimen S, and a device holder 5 holding the X-ray radiation area controller 4 with respect to the housing 3. The X-ray tube includes a case 6, an electron ray source 7 generating electron rays, and a target unit 8 having a base fixed to the case and receiving electron rays through a protruding free end. The device holder has a fixed-base 5a fixed to the housing, directly under the base of the target unit, and a supporting extension 5b extending from the fixed-base in the protrusion direction of the target unit and supporting the X-ray radiation area controller.

公开(公告)号：US09719947B2

公开(公告)日：2017-08-01

申请号：US14700137

申请日：2015-04-29

Applicant: Sigray, Inc.

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

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

CPC classification number: G01N23/20075 ,  A61B6/4007 ,  A61B6/4291 ,  A61B6/484 ,  A61B6/508 ,  G21K1/02 ,  G21K2207/005 ,  H01J35/08 ,  H01J2235/086 ,  H01J2235/087

Abstract: An x-ray interferometric imaging system in which the x-ray source comprises a target having a plurality of structured coherent sub-sources of x-rays embedded in a thermally conducting substrate. The system additionally comprises a beam-splitting grating G1 that establishes a Talbot interference pattern, which may be a π phase-shifting grating, and an x-ray detector to convert two-dimensional x-ray intensities into electronic signals. The system may also comprise a second analyzer grating G2 that may be placed in front of the detector to form additional interference fringes, a means to translate the second grating G2 relative to the detector. The system may additionally comprise an antiscattering grid to reduce signals from scattered x-rays. Various configurations of dark-field and bright-field detectors are also disclosed.

公开(公告)号：US20170200580A1

公开(公告)日：2017-07-13

申请号：US15342575

申请日：2016-11-03

Applicant: Moxtek, Inc.

Inventor： Eric Miller ,  Bill Hansen

IPC: H01J35/06 ,  H01J35/08 ,  H05F3/06 ,  H01J35/18

CPC classification number: H01J35/065 ,  A61B6/40 ,  H01J35/186 ,  H01J35/32

Abstract: An x-ray tube can include an electron-emitter, which can include a tube-shape with a minimum inside diameter of at least 0.5 millimeters. The electron-emitter can provide field-emission of electrons, and thus can avoid the electrical power required for heating, and can avoid degradation due to high temperature of, a thermionic-emission electron-emitter. This type of electron-emitter, with a tube-shape, can have a relatively large electron-emission region, allowing high electrical current without excessive current density.

公开(公告)号：US20170135189A1

公开(公告)日：2017-05-11

申请号：US15273486

申请日：2016-09-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jin-Woo JEONG ,  Yoon-Ho SONG

IPC: H05G1/30 ,  H05G1/10 ,  H01J35/14 ,  H01J35/06 ,  H01J35/08

CPC classification number: H05G1/30 ,  A61B6/00 ,  A61B6/032 ,  A61B6/4007 ,  H01J35/06 ,  H01J35/065 ,  H01J35/08 ,  H01J35/14 ,  H05G1/10 ,  H05G1/56 ,  H05G1/62

Abstract: Provided herein is a radiography apparatus including an X-ray source configured to irradiate a subject radiation, and a sensing module configured to sense the radiation having passed through the subject, wherein the X-ray source includes a cathode electrode comprising an electric field emitting source configured to emit electrons, an anode electrode disposed opposite to the cathode electrode and configured to use the electrons to generate the radiation, and a current control unit connected to the cathode electrode to control an amount of the electrons.

公开(公告)号：US20170133192A1

公开(公告)日：2017-05-11

申请号：US15411867

申请日：2017-01-20

Applicant: CANON KABUSHIKI KAISHA

Inventor： Takao Ogura ,  Yoshihiro Yanagisawa ,  Miki Tamura ,  Ichiro Nomura ,  Tamayo Hiroki ,  Shigeki Matsutani ,  Kazuyuki Ueda

IPC: H01J35/08 ,  H01J35/18 ,  G01N23/04

CPC classification number: H01J35/08 ,  G01N23/04 ,  G01N23/043 ,  H01J35/116 ,  H01J35/16 ,  H01J35/18 ,  H01J35/186 ,  H01J2235/168

Abstract: Provided is an X-ray generator including an electron passage in an electron-passage forming member; and a target on an insulative substrate. The transmission X-ray generator irradiates the target with electrons that have passed through the electron passage to generate X-rays. The target is provided at a central region of the substrate; the electron passage accommodates a secondary-X-ray generating section that generates X-rays by irradiation with electrons reflected from the target; the secondary-X-ray generating section and the target are disposed so that both of X-rays generated by direct irradiation of the target with the electrons and X-rays generated by irradiation of the secondary-X-ray generating section with the electrons reflected from the target are radiated to the outside; and at least part of the peripheral region of the substrate has higher transmittance for the X-rays generated at the secondary-X-ray generating section than the central region of the substrate.