公开(公告)号：US12005274B2

公开(公告)日：2024-06-11

申请号：US17697430

申请日：2022-03-17

Applicant: Varian Medical Systems, Inc.

Inventor： James Clayton

IPC: A61N5/10 ,  G21K1/093 ,  G21K1/10 ,  H01J35/08 ,  H01J35/10 ,  H01J35/14 ,  H01J35/22 ,  H01J35/30 ,  H05G2/00 ,  H05H9/00 ,  H05H9/04

CPC classification number: A61N5/1077 ,  A61N5/1043 ,  A61N5/1045 ,  A61N5/1047 ,  A61N5/1081 ,  G21K1/093 ,  G21K1/10 ,  H01J35/10 ,  H01J35/116 ,  H01J35/153 ,  H01J35/22 ,  H01J35/30 ,  H05G2/00 ,  H05H9/048 ,  A61N2005/1089

Abstract: A radiotherapy system includes an X-ray target configured to convert an incident electron beam into a therapeutic X-ray beam, a purging magnet configured to redirect unwanted particles emitted from the X-ray target away from the therapeutic X-ray beam, and a particle collector configured to absorb the unwanted particles subsequent to redirection by the purging magnet. The particle collector may be configured to dissipate at least 50% of the energy of the incident electron beam.

公开(公告)号：US11898971B2

公开(公告)日：2024-02-13

申请号：US17622535

申请日：2020-06-24

Applicant: SMS group GmbH ,  IMS Messsysteme GmbH

Inventor： Christian Klinkenberg ,  Ulrich Sommers ,  Helmut Klein ,  Alexandre Lhoest ,  Olivier Pensis ,  Horst Krauthäuser

IPC: G01N23/20008 ,  G01N23/205 ,  G01N23/207 ,  G01N23/20091 ,  H01J35/08 ,  H01J35/10

CPC classification number: G01N23/20008 ,  G01N23/205 ,  G01N23/207 ,  G01N23/20091 ,  H01J35/08 ,  H01J35/10 ,  H01J35/112 ,  H01J35/116 ,  G01N2223/056 ,  G01N2223/1016 ,  G01N2223/20 ,  G01N2223/315 ,  G01N2223/316 ,  G01N2223/606 ,  G01N2223/624

Abstract: A method and a device for determining the material properties of a polycrystalline, in particular metallic, product during production or quality control of the polycrystalline, in particular metallic, product by means of X-ray diffraction using at least one X-ray source and at least one X-ray detector. In this case, an X-ray generated by the X-ray source is directed onto a surface of the polycrystalline product and the resulting diffraction image of the X-ray is recorded by the X-ray detector. After exiting the X-ray source, the X-ray is passed through an X-ray mirror, wherein the X-ray is both monochromatized and focused, by the X-ray mirror, in the direction of the polycrystalline product and/or the X-ray detector, and then reaches a surface of the metallic product.

公开(公告)号：US20240021400A1

公开(公告)日：2024-01-18

申请号：US18333112

申请日：2023-06-12

Applicant: Moxtek, Inc.

Inventor： Kasey Otho GREENLAND ,  Todd S. PARKER

IPC: H01J35/06 ,  H01J35/08

CPC classification number: H01J35/064 ,  H01J35/116

Abstract: A planar filament for an x-ray tube can have a different cross-sectional area at different locations. In regions of smaller cross-sectional area, there can be higher current density, and thus increased heating and higher temperature of the wire. In regions of larger cross-sectional area, there can be lower current density, and thus decreased heating of the wire. Regions of larger cross-sectional area can also be stronger, thus reducing early filament failures. Wider regions can have increased area for electron emission. By adjusting the cross-sectional area and width of the wire at different locations, electron emission can be largely confined to a center of the filament, and filament life can increase.

公开(公告)号：US11857805B2

公开(公告)日：2024-01-02

申请号：US17227156

申请日：2021-04-09

Applicant: Varian Medical Systems, Inc.

Inventor： Anuj Purwar ,  Dragos Constantin ,  James Clayton

IPC: A61N5/10 ,  H01J35/08 ,  H01J35/14

CPC classification number: A61N5/1044 ,  A61N5/10 ,  A61N5/103 ,  A61N5/1042 ,  A61N5/1043 ,  A61N5/1045 ,  A61N5/1047 ,  A61N5/1064 ,  A61N5/1065 ,  A61N5/1067 ,  A61N5/1077 ,  A61N5/1078 ,  A61N5/1081 ,  A61N5/1082 ,  H01J35/116 ,  H01J35/14 ,  A61N2005/1074 ,  A61N2005/1089 ,  A61N2005/1092 ,  A61N2005/1095

Abstract: Systems and methods provide a radiotherapy treatment by focusing an electron beam on an x-ray target (e.g., a tungsten plate) to produce a high-yield x-ray output with improved field shaping. A modified electron beam spatial distribution is employed to scan the x-ray target, such as a 2D periodic beam path, which advantageously lowers the temperature of the x-ray target compared to typical compact beam spatial distribution. As a result, the x-ray target can produce a high yield x-ray output without sacrificing the life span of the x-ray target. The use of a 2D periodic beam path allows a much colder x-ray target functioning regime such that more dosage can be applied in a short period of time compared to existing techniques.

公开(公告)号：US10014147B2

公开(公告)日：2018-07-03

申请号：US14469724

申请日：2014-08-27

Applicant: Futaba Corporation ,  Hamamatsu Photonics Kabushiki Kaisha

Inventor： Akira Matsumoto ,  Kiyoyuki Deguchi ,  Yuuichi Kogure ,  Kazuhito Nakamura ,  Tomoyuki Okada ,  Toru Fujita ,  Tatsuya Nakamura

IPC: H01J35/04 ,  H01J35/06 ,  H01J35/18 ,  H01J35/16

CPC classification number: H01J35/045 ,  H01J35/04 ,  H01J35/06 ,  H01J35/116 ,  H01J35/16 ,  H01J35/18 ,  H01J35/186

Abstract: Provided is an X-ray tube which can perform stable X-ray radiation under a desired condition in a radiation region extending in a predetermined direction. Included are a base plate having an opening portion and made of alloy 426, an X-ray transmission window made of titanium foil and arranged to close the opening portion of the base plate, a flat box-like vessel portion attached to the base plate and inside of which is in a vacuum state, an X-ray target provided at the opening portion in the vessel portion, and an electron source injecting electrons to the X-ray target in the vessel portion. The electron source includes a liner cathode, a first control electrode pulling out electrons from the cathode and a second control electrode restricting radiation range of the pulled-out electrons. At this time, X-rays emitted from the X-ray window spreads radially from opening shape of the opening portion.

公开(公告)号：US20180047540A1

公开(公告)日：2018-02-15

申请号：US15709426

申请日：2017-10-23

Applicant: Rad Source Technologies, Inc.

Inventor： Phillip Kent AUSBURN

IPC: H01J35/06 ,  H01J35/10

CPC classification number: H01J35/06 ,  A61B6/40 ,  A61B6/4488 ,  A61B6/482 ,  H01J1/16 ,  H01J1/40 ,  H01J1/94 ,  H01J19/32 ,  H01J19/48 ,  H01J19/57 ,  H01J19/82 ,  H01J35/08 ,  H01J35/105 ,  H01J35/116 ,  H01J35/186 ,  H01J35/32 ,  H01J2235/085 ,  H01J2235/16 ,  H01J2893/0006 ,  H01J2893/0012

Abstract: A high dose output, through transmission and reflective target x-ray tube and methods of use includes, in general an x-ray tube for accelerating electrons under a high voltage potential having an evacuated high voltage housing, a hemispherical shaped through and reflective transmission target anode disposed in said housing, a cathode structure to deflect the electrons toward the hemispherical anode disposed in said housing, a filament located in the geometric center of the anode hemisphere disposed in said housing, a power supply connected to said cathode to provide accelerating voltage to the electrons.

公开(公告)号：US20170213686A1

公开(公告)日：2017-07-27

申请号：US15312948

申请日：2015-07-13

Applicant: CANON KABUSHIKI KAISHA

Inventor： YASUO OHASHI ,  KAZUYUKI UEDA

IPC: H01J35/08 ,  G01N23/04

CPC classification number: H01J35/08 ,  G01N23/04 ,  H01J35/116 ,  H01J35/186 ,  H01J2235/083

Abstract: A thickness of a bonding material (8) is varied in a radial direction orthogonal to a central axis (P) of the tubular anode member (6), the bonding material (8) being used for bonding a transmitting substrate (7) for supporting a target layer (9) and a tubular anode member (6) in a direction along the central axis (P). Thus, a region in which a circumferential tensile stress of the bonding material (8) is alleviated is formed in the direction along the central axis (P) to prevent a crack from developing in the bonding material (8).

公开(公告)号：US20170013702A1

公开(公告)日：2017-01-12

申请号：US15138794

申请日：2016-04-26

Applicant: Moxtek, Inc.

Inventor： Gordon Ernest Smith ,  Tyler Dean Washburn

IPC: H05G1/10 ,  H05G1/32 ,  H01J35/06 ,  H02M5/293 ,  H01J35/08

CPC classification number: H05G1/10 ,  H01J35/116 ,  H02M5/293 ,  H05G1/14 ,  H05G1/32

Abstract: The invention includes a power supply 17 for an x-ray tube 49. The power supply 17 can comprise a control box 48 and a remote box 47. An electron-emitter transformer 14 can be located in the remote box 47. A box-connector cable 41 between the control box 48 and the remote box 47 can be relatively long and an x-ray tube cable 21 between the remote box 47 and an electron emitter 19 can be relatively short. This design can provide improved electrical power transfer from the power supply 17 to the x-ray tube 49. Also, electrical cable size and cost can be reduced if a high voltage source 15 is located in the remote box 47.

Abstract translation: 本发明包括用于X射线管49的电源17.电源17可以包括控制箱48和遥控盒47.电子发射变压器14可以位于遥控盒47中。盒连接器 控制箱48和遥控盒47之间的电缆41可以相当长，并且在遥控盒47和电子发射器19之间的X射线管电缆21可以相对较短。 该设计可以提供从电源17到X射线管49的改进的电力传输。而且，如果高压源15位于远程盒47中，则电缆尺寸和成本可以降低。

公开(公告)号：US20150003587A1

公开(公告)日：2015-01-01

申请号：US14315733

申请日：2014-06-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jong-pil KIM ,  Woo-sup HAN

IPC: A61B6/00

CPC classification number: A61B6/032 ,  A61B6/0435 ,  A61B6/08 ,  A61B6/4014 ,  A61B6/4071 ,  H01J1/304 ,  H01J3/021 ,  H01J35/08 ,  H01J35/116 ,  H01J35/14 ,  H01J2235/081 ,  H01J2235/086

Abstract: An apparatus for X-ray imaging includes a cylindrical X-ray generator assembly including linear X-ray generators arranged along a circumference of a cylinder and having a linear shape, a linear X-ray detector disposed inside the cylindrical X-ray generator assembly, and a rotation driver rotating the linear X-ray detector along an inner circumference of the cylindrical X-ray generator assembly.

Abstract translation: 一种用于X射线成像的装置包括：圆柱形X射线发生器组件，包括沿圆柱体的圆周布置并具有线性形状的线性X射线发生器组件，设置在圆柱形X射线发生器组件内部的线性X射线检测器， 以及沿着圆筒形X射线发生器组件的内周旋转线性X射线检测器的旋转驱动器。

公开(公告)号：US20140362972A1

公开(公告)日：2014-12-11

申请号：US14241384

申请日：2012-08-08

Applicant: Takao Ogura ,  Miki Tamura ,  Tamayo Hiroki

Inventor： Takao Ogura ,  Miki Tamura ,  Tamayo Hiroki

IPC: H01J35/08 ,  H05G1/32 ,  G01N23/04

CPC classification number: H01J35/08 ,  G01N23/04 ,  H01J35/116 ,  H01J35/14 ,  H01J35/16 ,  H01J2235/168 ,  H05G1/32

Abstract: Provided is an X-ray generator (10) which causes electrons having passed through an electron path (4), formed by an electron path formation member (3) surrounding the periphery of the electron path (4), to be emitted against a target to generate an X-ray, in which: an X-ray generated when the sub X-ray generating portion (5) provided in the electron path (4) is irradiated with the electrons backscatterred off the target is capable of being taken out; a material which constitutes the target and a material which constitutes at least the sub X-ray generating portion (5) of the electron path formation member (3) are the same material of which atomic number is 40 or greater. X-ray generation efficiency can be improved by effectively using the electrons backscatterred off the transmission target.

Abstract translation: 提供一种X射线发生器（10），其使通过电子通路（4）的电子由围绕电子路径（4）周围的电子通路形成部件（3）形成，以抵抗靶 以产生X射线，其中：当设置在电子路径（4）中的副X射线产生部分（5）被从靶上反向散射的电子照射时产生的X射线能够被取出; 构成靶的材料和构成电子通路形成部件（3）的至少子X射线产生部（5）的材料是原子序数为40以上的材料。 通过有效地使用从传输目标反向散射的电子可以提高X射线产生效率。