WO2004110111A3 - Devices and methods for producing multiple x-ray beams from multiple locations - Google Patents

Devices and methods for producing multiple x-ray beams from multiple locations Download PDF

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Publication number
WO2004110111A3
WO2004110111A3 PCT/US2004/016434 US2004016434W WO2004110111A3 WO 2004110111 A3 WO2004110111 A3 WO 2004110111A3 US 2004016434 W US2004016434 W US 2004016434W WO 2004110111 A3 WO2004110111 A3 WO 2004110111A3
Authority
WO
WIPO (PCT)
Prior art keywords
cathode
anode
disposed
gate electrode
predetermined pattern
Prior art date
Application number
PCT/US2004/016434
Other languages
French (fr)
Other versions
WO2004110111B1 (en
WO2004110111A2 (en
Inventor
Qi Qiu
Jianping Lu
Otto Z Zhou
Original Assignee
Xintek Inc
Qi Qiu
Jianping Lu
Otto Z Zhou
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xintek Inc, Qi Qiu, Jianping Lu, Otto Z Zhou filed Critical Xintek Inc
Priority to CN2004800224505A priority Critical patent/CN1833299B/en
Priority to JP2006533406A priority patent/JP2007504636A/en
Priority to EP04753290A priority patent/EP1636817A2/en
Publication of WO2004110111A2 publication Critical patent/WO2004110111A2/en
Publication of WO2004110111A3 publication Critical patent/WO2004110111A3/en
Publication of WO2004110111B1 publication Critical patent/WO2004110111B1/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00X-ray tubes
    • H01J35/02Details
    • H01J35/04Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/06Cathodes
    • H01J35/065Field emission, photo emission or secondary emission cathodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00X-ray tubes
    • H01J2235/06Cathode assembly
    • H01J2235/068Multi-cathode assembly

Abstract

A multi-beam x-ray generating device includes a stationary field-emission cathode having a plurality of stationary and individually controllable electron-emitting pixels disposed in a predetermined pattern on the cathode, an anode opposing the cathode comprising a plurality of focal spots disposed in a predetermined pattern that corresponds to the predetermined pattern of the pixels, and a vacuum chamber enveloping the anode and cathode. An additional construction is in the form of an a x-ray generating device including a stationary field-emission cathode, the cathode having a planar surface with an electron-emissive material disposed on at least a portion thereof, a gate electrode disposed in parallel spaced relationship relative to the planar surface of the cathode, the gate electrode having a plurality of openings having different sizes, an anode opposing the cathode and spaced therefrom, the anode having a plurality of focal spots aligned with the electron-emissive material, and a vacuum chamber enveloping the anode and cathode, wherein the gate electrode is operable such that the openings can be manipulated to bring at least one beam of electrons emitted from the cathode into and out of registry with at least one of the focal spots. Associated methods are also described.
PCT/US2004/016434 2003-05-30 2004-05-25 Devices and methods for producing multiple x-ray beams from multiple locations WO2004110111A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2004800224505A CN1833299B (en) 2003-05-30 2004-05-25 Devices and methods for producing multiple x-ray beams from multiple locations
JP2006533406A JP2007504636A (en) 2003-05-30 2004-05-25 Apparatus and method for generating multiple x-ray beams from multiple locations
EP04753290A EP1636817A2 (en) 2003-05-30 2004-05-25 Devices and methods for producing multiple x-ray beams from multiple locations

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/448,144 2003-05-30
US10/448,144 US20040240616A1 (en) 2003-05-30 2003-05-30 Devices and methods for producing multiple X-ray beams from multiple locations

Publications (3)

Publication Number Publication Date
WO2004110111A2 WO2004110111A2 (en) 2004-12-16
WO2004110111A3 true WO2004110111A3 (en) 2005-06-09
WO2004110111B1 WO2004110111B1 (en) 2005-10-06

Family

ID=33451418

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/016434 WO2004110111A2 (en) 2003-05-30 2004-05-25 Devices and methods for producing multiple x-ray beams from multiple locations

Country Status (6)

Country Link
US (1) US20040240616A1 (en)
EP (1) EP1636817A2 (en)
JP (1) JP2007504636A (en)
CN (1) CN1833299B (en)
TW (1) TW200518155A (en)
WO (1) WO2004110111A2 (en)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6876724B2 (en) * 2000-10-06 2005-04-05 The University Of North Carolina - Chapel Hill Large-area individually addressable multi-beam x-ray system and method of forming same
US7227924B2 (en) * 2000-10-06 2007-06-05 The University Of North Carolina At Chapel Hill Computed tomography scanning system and method using a field emission x-ray source
US6980627B2 (en) 2000-10-06 2005-12-27 Xintek, Inc. Devices and methods for producing multiple x-ray beams from multiple locations
US7153455B2 (en) * 2001-05-21 2006-12-26 Sabel Plastechs Inc. Method of making a stretch/blow molded article (bottle) with an integral projection such as a handle
US7252749B2 (en) * 2001-11-30 2007-08-07 The University Of North Carolina At Chapel Hill Deposition method for nanostructure materials
US7455757B2 (en) * 2001-11-30 2008-11-25 The University Of North Carolina At Chapel Hill Deposition method for nanostructure materials
US7280636B2 (en) * 2003-10-03 2007-10-09 Illinois Institute Of Technology Device and method for producing a spatially uniformly intense source of x-rays
US20070014148A1 (en) * 2004-05-10 2007-01-18 The University Of North Carolina At Chapel Hill Methods and systems for attaching a magnetic nanowire to an object and apparatuses formed therefrom
US8155262B2 (en) 2005-04-25 2012-04-10 The University Of North Carolina At Chapel Hill Methods, systems, and computer program products for multiplexing computed tomography
CN101296658B (en) * 2005-04-25 2011-01-12 北卡罗来纳大学查珀尔希尔分校 X-ray imaging system using temporal digital signal processing
US20070009088A1 (en) * 2005-07-06 2007-01-11 Edic Peter M System and method for imaging using distributed X-ray sources
WO2007038306A2 (en) * 2005-09-23 2007-04-05 The University Of North Carolina At Chapel Hill Methods, systems, and computer program products for multiplexing computed tomography
US20070133747A1 (en) * 2005-12-08 2007-06-14 General Electric Company System and method for imaging using distributed X-ray sources
EP1801842A1 (en) * 2005-12-23 2007-06-27 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO Device for generating X-rays and use of such a device
EP1982164B1 (en) * 2006-02-02 2014-08-06 Philips Intellectual Property & Standards GmbH Imaging apparatus using distributed x-ray sources and method thereof
US8189893B2 (en) 2006-05-19 2012-05-29 The University Of North Carolina At Chapel Hill Methods, systems, and computer program products for binary multiplexing x-ray radiography
JP4884902B2 (en) * 2006-09-21 2012-02-29 浜松ホトニクス株式会社 Ionizer, mass analyzer, ion mobility meter, electron capture detector, and charged particle measuring device for chromatograph
SE532723C2 (en) * 2007-05-03 2010-03-23 Lars Lantto Device for generating X-rays with great real focus and needs-adapted virtual focus
CN101346034B (en) * 2007-07-09 2011-11-23 清华大学 Dual-energy or multi-energy electrostatic field electronic accelerator and method thereof
US7751528B2 (en) * 2007-07-19 2010-07-06 The University Of North Carolina Stationary x-ray digital breast tomosynthesis systems and related methods
DE102007034222A1 (en) * 2007-07-23 2009-01-29 Siemens Ag X-ray tube i.e. field emitter-x-ray tube, has dielectric layer attached on conductive layer, and gate electrode layer arranged on dielectric layer, emitter layer attached on electrically conductive layer in region of recesses
JP4886713B2 (en) * 2008-02-13 2012-02-29 キヤノン株式会社 X-ray imaging apparatus and control method thereof
JP5294653B2 (en) * 2008-02-28 2013-09-18 キヤノン株式会社 Multi X-ray generator and X-ray imaging apparatus
DE102008050353B3 (en) * 2008-10-02 2010-05-20 Siemens Aktiengesellschaft Circular multi-beam X-ray device
DE102008050352B4 (en) 2008-10-02 2012-02-16 Siemens Aktiengesellschaft Multi-beam X-ray device
US8600003B2 (en) 2009-01-16 2013-12-03 The University Of North Carolina At Chapel Hill Compact microbeam radiation therapy systems and methods for cancer treatment and research
DE102009040769A1 (en) 2009-09-09 2011-03-17 Siemens Aktiengesellschaft Apparatus and method for examining an object for material defects by means of X-rays
DE102009049182A1 (en) 2009-10-13 2011-04-21 Siemens Aktiengesellschaft Miniature x-ray tube for a catheter
US8401151B2 (en) * 2009-12-16 2013-03-19 General Electric Company X-ray tube for microsecond X-ray intensity switching
US9271689B2 (en) * 2010-01-20 2016-03-01 General Electric Company Apparatus for wide coverage computed tomography and method of constructing same
US8358739B2 (en) 2010-09-03 2013-01-22 The University Of North Carolina At Chapel Hill Systems and methods for temporal multiplexing X-ray imaging
DE102011081138A1 (en) 2011-08-17 2012-09-20 Siemens Aktiengesellschaft X-ray device used for testing non-destructive material, used in medical and industrial applications, has multi-beam X-ray tube and high voltage generator which are arranged inside housing
WO2013078344A1 (en) 2011-11-22 2013-05-30 Xinray Systems Inc High speed, small footprint x-ray tomography inspection systems, devices, and methods
JP5540033B2 (en) 2012-03-05 2014-07-02 双葉電子工業株式会社 X-ray tube
US9484179B2 (en) 2012-12-18 2016-11-01 General Electric Company X-ray tube with adjustable intensity profile
US9224572B2 (en) 2012-12-18 2015-12-29 General Electric Company X-ray tube with adjustable electron beam
KR20140106291A (en) * 2013-02-26 2014-09-03 삼성전자주식회사 X-ray imaging system having flat panel type X-ray generator, and X-ray generator, and electron emission device
JP2013154254A (en) * 2013-05-24 2013-08-15 Canon Inc X-ray tomography apparatus
MX360238B (en) 2014-02-10 2018-10-26 Luxbright Ab An electron emitter for an x-ray tube.
US9782136B2 (en) 2014-06-17 2017-10-10 The University Of North Carolina At Chapel Hill Intraoral tomosynthesis systems, methods, and computer readable media for dental imaging
US10980494B2 (en) 2014-10-20 2021-04-20 The University Of North Carolina At Chapel Hill Systems and related methods for stationary digital chest tomosynthesis (s-DCT) imaging
CN104411081A (en) * 2014-11-13 2015-03-11 重庆大学 Linear array micro-nano focus X-ray source for micro-nano CT (computer tomography) system
JP6980740B2 (en) * 2015-02-10 2021-12-15 ルクスブライト・アーベー X-ray device
JP6377572B2 (en) * 2015-05-11 2018-08-22 株式会社リガク X-ray generator and adjustment method thereof
US10835199B2 (en) 2016-02-01 2020-11-17 The University Of North Carolina At Chapel Hill Optical geometry calibration devices, systems, and related methods for three dimensional x-ray imaging
CN109804449B (en) * 2016-10-19 2022-07-01 昂达博思有限公司 X-ray source
DE102016013533A1 (en) * 2016-11-12 2018-05-17 H&P Advanced Technology GmbH CT Scanner
EP3658030A4 (en) * 2017-07-26 2021-06-30 Shenzhen Xpectvision Technology Co., Ltd. An integrated x-ray source
WO2019019040A1 (en) * 2017-07-26 2019-01-31 Shenzhen Xpectvision Technology Co., Ltd. System with a spatially expansive x-ray source for x-ray imaging
EP3531437A1 (en) * 2018-02-27 2019-08-28 Siemens Healthcare GmbH Electron-emitting device
EP3804472A4 (en) * 2018-05-25 2022-03-23 Micro-X Limited A device for applying beamforming signal processing to rf modulated x-rays
US11335038B2 (en) * 2019-11-04 2022-05-17 Uih America, Inc. System and method for computed tomographic imaging
EP3933881A1 (en) 2020-06-30 2022-01-05 VEC Imaging GmbH & Co. KG X-ray source with multiple grids

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020085674A1 (en) * 2000-12-29 2002-07-04 Price John Scott Radiography device with flat panel X-ray source
US6498349B1 (en) * 1997-02-05 2002-12-24 Ut-Battelle Electrostatically focused addressable field emission array chips (AFEA's) for high-speed massively parallel maskless digital E-beam direct write lithography and scanning electron microscopy

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4809308A (en) * 1986-02-20 1989-02-28 Irt Corporation Method and apparatus for performing automated circuit board solder quality inspections
US4926452A (en) * 1987-10-30 1990-05-15 Four Pi Systems Corporation Automated laminography system for inspection of electronics
DE4405768A1 (en) * 1994-02-23 1995-08-24 Till Keesmann Field emission cathode device and method for its manufacture
US5594770A (en) * 1994-11-18 1997-01-14 Thermospectra Corporation Method and apparatus for imaging obscured areas of a test object
JPH08264139A (en) * 1995-03-22 1996-10-11 Hamamatsu Photonics Kk X-ray generating apparatus
US6028911A (en) * 1998-08-03 2000-02-22 Rigaku Industrial Corporation X-ray analyzing apparatus with enhanced radiation intensity
US6630772B1 (en) * 1998-09-21 2003-10-07 Agere Systems Inc. Device comprising carbon nanotube field emitter structure and process for forming device
JP2001250496A (en) * 2000-03-06 2001-09-14 Rigaku Corp X-ray generator
US6333968B1 (en) * 2000-05-05 2001-12-25 The United States Of America As Represented By The Secretary Of The Navy Transmission cathode for X-ray production
US6553096B1 (en) * 2000-10-06 2003-04-22 The University Of North Carolina Chapel Hill X-ray generating mechanism using electron field emission cathode
US6876724B2 (en) * 2000-10-06 2005-04-05 The University Of North Carolina - Chapel Hill Large-area individually addressable multi-beam x-ray system and method of forming same
US20040213378A1 (en) * 2003-04-24 2004-10-28 The University Of North Carolina At Chapel Hill Computed tomography system for imaging of human and small animal
US6385292B1 (en) * 2000-12-29 2002-05-07 Ge Medical Systems Global Technology Company, Llc Solid-state CT system and method
US6674837B1 (en) * 2001-06-15 2004-01-06 Nan Crystal Imaging Corporation X-ray imaging system incorporating pixelated X-ray source and synchronized detector
US20030002628A1 (en) * 2001-06-27 2003-01-02 Wilson Colin R. Method and system for generating an electron beam in x-ray generating devices
JP2003303564A (en) * 2002-04-10 2003-10-24 Seiko Instruments Inc Automatic focusing system in scanning type charged particle microscope
CN1181519C (en) * 2002-10-15 2004-12-22 谭大刚 Grid-controlled x-ray tube with cold cathode of carbon nanotube
JP2004357724A (en) * 2003-05-30 2004-12-24 Toshiba Corp X-ray ct apparatus, x-ray generating apparatus, and data collecting method of x-ray ct apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6498349B1 (en) * 1997-02-05 2002-12-24 Ut-Battelle Electrostatically focused addressable field emission array chips (AFEA's) for high-speed massively parallel maskless digital E-beam direct write lithography and scanning electron microscopy
US20020085674A1 (en) * 2000-12-29 2002-07-04 Price John Scott Radiography device with flat panel X-ray source

Also Published As

Publication number Publication date
WO2004110111B1 (en) 2005-10-06
CN1833299B (en) 2010-06-16
JP2007504636A (en) 2007-03-01
WO2004110111A2 (en) 2004-12-16
CN1833299A (en) 2006-09-13
US20040240616A1 (en) 2004-12-02
EP1636817A2 (en) 2006-03-22
TW200518155A (en) 2005-06-01

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