公开(公告)号：US3812366A

公开(公告)日：1974-05-21

申请号：US12204071

申请日：1971-03-08

Applicant: WATKINS JOHNSON CO

Inventor： GRALENSKI N

IPC: H01J35/02 ,  H05G1/06

CPC classification number: H01J35/025 ,  H05G1/06

Abstract: An elongated X-ray generating tube including a high voltage terminal is disposed in tandem with a high voltage transformer located proximate to the tube and axially aligned therewith. The high voltage terminal is interconnected with the transformer core located centrally of the transformer. An enclosure disposed around the transformer and tube includes a window for transmitting X-rays therethrough while the transformer and tube are embedded or potted as a unit within the enclosure.

公开(公告)号：US2617046A

公开(公告)日：1952-11-04

申请号：US18492250

申请日：1950-09-15

Applicant: HARTFORD NAT BANK & TRUST CO

Inventor： TJISKE DOUMA ,  ADRIANUS VERHOEFF

IPC: H01J35/02 ,  H05G1/20

CPC classification number: H01J35/025 ,  H05G1/20

公开(公告)号：US2428554A

公开(公告)日：1947-10-07

申请号：US46777342

申请日：1942-12-03

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： BENEDICT CASSEN

IPC: H01J25/02 ,  H01J25/74 ,  H01J35/02

CPC classification number: H01J35/025 ,  H01J25/02 ,  H01J25/74

公开(公告)号：US2392380A

公开(公告)日：1946-01-08

申请号：US46830642

申请日：1942-12-07

Applicant: SPERRY GYROSCOPE CO INC

Inventor： VARIAN RUSSELL H

IPC: H01J35/02

CPC classification number: H01J35/025

公开(公告)号：US1822919A

公开(公告)日：1931-09-15

申请号：US40945829

申请日：1929-11-25

Applicant: BRAESTRUP CARL B

Inventor： BRAESTRUP CARL B

IPC: H01J35/02 ,  H05G1/54

CPC classification number: H01J35/025 ,  H05G1/54

公开(公告)号：US11798772B2

公开(公告)日：2023-10-24

申请号：US17292695

申请日：2019-11-07

Applicant: PEKING UNIVERSITY

Inventor： Xianlong Wei

IPC: H01J35/02 ,  H01J35/14 ,  H01J9/18 ,  H01J35/12 ,  H01J35/16 ,  H01J35/18 ,  H01J35/06

CPC classification number: H01J35/025 ,  H01J35/064 ,  H01J35/16 ,  H01J35/186 ,  H01J9/18 ,  H01J35/12 ,  H01J35/147 ,  H01J2235/068

Abstract: Provided are an on-chip miniature X-ray source and a method for manufacturing the same. The on-chip miniature X-ray source includes: an on-chip miniature electron source; a first insulating spacer provided on an electron-emitting side of the on-chip miniature electron source, where the first insulating spacer has a cavity structure; and an anode provided on the first insulating spacer, where a closed vacuum cavity is formed between the on-chip miniature electron source and the anode. The on-chip miniature X-ray source has the advantages of stable X-ray dose, low working requirements for vacuum, fast switch response, capability of integration and batch fabrication, and can be used in various types of small and portable X-ray detection, analysis and treatment devices.

公开(公告)号：US20230307203A1

公开(公告)日：2023-09-28

申请号：US18064704

申请日：2022-12-12

Applicant: NANOVISION TECHNOLOGY (BEIJING) CO., LTD

Inventor： Zhili Cui ,  Liang CUI ,  Zhichao XUE

IPC: H01J35/16 ,  H05G1/04 ,  H05G1/10 ,  H01J35/02

CPC classification number: H01J35/165 ,  H01J35/025 ,  H05G1/04 ,  H05G1/10

Abstract: The present invention relates to a connection device of a high-voltage power supply and an X-ray tube, and a corresponding X-ray source. The connection device comprises a first connecting unit a second connecting unit, the first connecting unit is mounted on a high-voltage power supply and connects a high-voltage power output terminal of the high-voltage power supply, and the second connecting unit is mounted on an X-ray tube and connects a cathode of the X-ray tube. By mounting the first connecting unit and the second connecting unit on the high-voltage power supply and the X-ray tube, and detachably plugging said units together, the high-voltage power supply and the X-ray tube can be connected together. Moreover, the high-voltage power supply and the X-ray tube can be separated so that disassembly for repair can be carried out when any one of the high-voltage power supply and the X-ray tube is faulty.

公开(公告)号：US20230232521A1

公开(公告)日：2023-07-20

申请号：US18082922

申请日：2022-12-16

Applicant: Moxtek, Inc.

Inventor： David Hoffman

IPC: H05G1/10 ,  H01J35/02 ,  H01F27/28 ,  H05K1/16 ,  H05K1/03

CPC classification number: H05G1/10 ,  H01F27/2804 ,  H01J35/025 ,  H05K1/032 ,  H05K1/165 ,  H01J2235/02 ,  H05K2201/0154

Abstract: In an x-ray source, an isolation circuit can isolate bias voltage at a cathode from a bias voltage at an alternating current source (AC source). The isolation circuit can transfer alternating current from the AC source to the cathode. The isolation circuit can be made repeatedly with minimal variation or failed parts, can be light, and can be small. The isolation circuit can include planar transformer(s). Each planar transformer can include a primary trace on a primary circuit board and a secondary trace on a secondary circuit board. The primary trace and the secondary trace can each include a spiral shape. The primary trace can be located in close proximity to the secondary trace such that alternating electrical current through the primary trace will induce alternating electrical current through the secondary trace.

公开(公告)号：US20190242239A1

公开(公告)日：2019-08-08

申请号：US16386023

申请日：2019-04-16

Applicant: Philip Teague ,  Melissa Spannuth

Inventor： Philip Teague ,  Melissa Spannuth

IPC: E21B47/00 ,  G01N23/203 ,  H01J35/32 ,  G01V5/12 ,  H01J35/02

CPC classification number: E21B47/0002 ,  G01N23/203 ,  G01V5/12 ,  H01J35/02 ,  H01J35/025 ,  H01J35/32

Abstract: An x-ray-based cased wellbore environment imaging tool is provided, the tool including at least an x-ray source; a radiation shield to define the output form of the produced x-rays; a direction controllable two-dimensional per-pixel collimated imaging detector array; sonde-dependent electronics; and a plurality of tool logic electronics and PSUs. A method of using an x-ray-based cased wellbore environment imaging tool to monitor and determine the integrity of materials within wellbore environments is also provided, the method including at least: producing x-rays in a shaped output; measuring the intensity of backscatter x-rays returning from materials surrounding the wellbore; controlling two-dimensional per-pixel collimated imaging detector arrays; and converting image data from said detectors into consolidated images of the wellbore materials.

公开(公告)号：US10020157B2

公开(公告)日：2018-07-10

申请号：US15717364

申请日：2017-09-27

Applicant: NIKON METROLOGY NV

Inventor： Roger Hadland

IPC: H01J35/10 ,  H01J35/02 ,  H01J29/48 ,  F16C33/76 ,  H02M1/32 ,  H05G1/12 ,  H02M7/10 ,  H01J35/04 ,  F16J15/16 ,  H01J35/16 ,  F16C35/04

CPC classification number: H01J35/025 ,  F16C33/768 ,  F16C35/042 ,  F16J15/16 ,  H01J29/48 ,  H01J35/04 ,  H01J35/06 ,  H01J35/101 ,  H01J35/106 ,  H01J35/108 ,  H01J35/116 ,  H01J35/16 ,  H01J37/065 ,  H01J2235/0236 ,  H01J2235/083 ,  H01J2235/086 ,  H01J2235/1046 ,  H01J2235/1204 ,  H01J2235/1262 ,  H01J2235/20 ,  H01J2237/2482 ,  H02M1/32 ,  H02M7/106 ,  H05G1/12

Abstract: Disclosed herein are a high-voltage generator for an x-ray source, an x-ray gun, an electron beam apparatus, a rotary vacuum seal, a target assembly for an x-ray source, a rotary x-ray emission target, and an x-ray source. These various aspects may separately and/or together enable the construction of an x-ray source which can operate at energies of up to 500 kV and beyond, which is suitable for use in commercial and research x-ray applications such as computerized tomography. In particular, the high-voltage generator includes a shield electrode electrically connected intermediate of a first voltage multiplier and a second voltage multiplier. The electron beam apparatus includes control photodetectors and photo emitters having a transparent conductive shield arranged therebetween. The rotary vacuum seal includes a pumpable chamber at a position intermediate between high-pressure and low-pressure ends of a bore for a rotating shaft. The rotary target assembly is configured such that when a torque between a bearing housing and a vacuum housing exceeds a predetermined torque, the bearing housing rotates relative to the vacuum housing. The rotary x-ray emission target has a plurality of target plates supported on a hub, the plates being arranged on the hub to provide an annular target region about an axis rotation of the hub. The x-ray gun is provided with a shield electrode maintained at a potential difference relative to the x-ray target different to the electron beam emission cathode.