FR2926668B1 - Source d'electrons a base d'emetteurs de champs pour radiographie multipoint. - Google Patents

Source d'electrons a base d'emetteurs de champs pour radiographie multipoint. Download PDF

Info

Publication number
FR2926668B1
FR2926668B1 FR0950364A FR0950364A FR2926668B1 FR 2926668 B1 FR2926668 B1 FR 2926668B1 FR 0950364 A FR0950364 A FR 0950364A FR 0950364 A FR0950364 A FR 0950364A FR 2926668 B1 FR2926668 B1 FR 2926668B1
Authority
FR
France
Prior art keywords
radiography
multipoint
electron source
source based
field transmitters
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
FR0950364A
Other languages
English (en)
Other versions
FR2926668A1 (fr
Inventor
Yun Zou
Mark E Vermilyea
Louis Paul Inzinna
Vasile Bogdan Neculaes
John Scott Price
Yang Cao
Antonio Caiafa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of FR2926668A1 publication Critical patent/FR2926668A1/fr
Application granted granted Critical
Publication of FR2926668B1 publication Critical patent/FR2926668B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/30—Cold cathodes, e.g. field-emissive cathode
    • H01J1/304—Field-emissive cathodes
    • H01J1/3048—Distributed particle emitters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/06—Cathode assembly
    • H01J2235/062—Cold cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/06—Cathode assembly
    • H01J2235/068—Multi-cathode assembly
FR0950364A 2008-01-21 2009-01-21 Source d'electrons a base d'emetteurs de champs pour radiographie multipoint. Active FR2926668B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12017098 2008-01-21
US12/017,098 US7809114B2 (en) 2008-01-21 2008-01-21 Field emitter based electron source for multiple spot X-ray

Publications (2)

Publication Number Publication Date
FR2926668A1 FR2926668A1 (fr) 2009-07-24
FR2926668B1 true FR2926668B1 (fr) 2018-02-09

Family

ID=40863215

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0950364A Active FR2926668B1 (fr) 2008-01-21 2009-01-21 Source d'electrons a base d'emetteurs de champs pour radiographie multipoint.

Country Status (3)

Country Link
US (1) US7809114B2 (fr)
CN (1) CN101494149B (fr)
FR (1) FR2926668B1 (fr)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8094784B2 (en) 2003-04-25 2012-01-10 Rapiscan Systems, Inc. X-ray sources
US9208988B2 (en) 2005-10-25 2015-12-08 Rapiscan Systems, Inc. Graphite backscattered electron shield for use in an X-ray tube
US8331535B2 (en) * 2003-04-25 2012-12-11 Rapiscan Systems, Inc. Graphite backscattered electron shield for use in an X-ray tube
US8243876B2 (en) 2003-04-25 2012-08-14 Rapiscan Systems, Inc. X-ray scanners
GB0525593D0 (en) 2005-12-16 2006-01-25 Cxr Ltd X-ray tomography inspection systems
GB0812864D0 (en) 2008-07-15 2008-08-20 Cxr Ltd Coolign anode
US10483077B2 (en) 2003-04-25 2019-11-19 Rapiscan Systems, Inc. X-ray sources having reduced electron scattering
US9046465B2 (en) 2011-02-24 2015-06-02 Rapiscan Systems, Inc. Optimization of the source firing pattern for X-ray scanning systems
JP4878311B2 (ja) * 2006-03-03 2012-02-15 キヤノン株式会社 マルチｘ線発生装置
JP4886713B2 (ja) * 2008-02-13 2012-02-29 キヤノン株式会社 Ｘ線撮影装置及びその制御方法
US7771117B2 (en) * 2008-06-13 2010-08-10 Korea Electrotechnology Research Institute X-ray system for dental diagnosis and oral cancer therapy based on nano-material and method thereof
GB0816823D0 (en) 2008-09-13 2008-10-22 Cxr Ltd X-ray tubes
JP4693884B2 (ja) * 2008-09-18 2011-06-01 キヤノン株式会社 マルチｘ線撮影装置及びその制御方法
GB0901338D0 (en) 2009-01-28 2009-03-11 Cxr Ltd X-Ray tube electron sources
CN102422364B (zh) * 2009-05-12 2015-08-05 皇家飞利浦电子股份有限公司 具有多个电子发射器的x射线源
ES2625620T3 (es) * 2009-06-03 2017-07-20 Rapiscan Systems, Inc. Tubo de rayos X con un ánodo apantallado de electrones retrodispersados
US8204174B2 (en) * 2009-06-04 2012-06-19 Nextray, Inc. Systems and methods for detecting an image of an object by use of X-ray beams generated by multiple small area sources and by use of facing sides of adjacent monochromator crystals
JP5641916B2 (ja) 2010-02-23 2014-12-17 キヤノン株式会社 放射線発生装置および放射線撮像システム
US8915833B1 (en) 2011-02-15 2014-12-23 Velayudhan Sahadevan Image guided intraoperative simultaneous several ports microbeam radiation therapy with microfocus X-ray tubes
US9636525B1 (en) 2011-02-15 2017-05-02 Velayudhan Sahadevan Method of image guided intraoperative simultaneous several ports microbeam radiation therapy with microfocus X-ray tubes
KR20120114585A (ko) * 2011-04-07 2012-10-17 삼성전자주식회사 전자빔 발생 장치 및 이를 포함하는 Ｘ-ｒａｙ 발생 장치
US8625743B1 (en) 2011-04-28 2014-01-07 General Electric Company Inverse pulse control for eddy current abatement
KR101245524B1 (ko) 2011-05-24 2013-03-21 한국전기연구원 멀티―빔 ｘ―선관
DE102011076912B4 (de) * 2011-06-03 2015-08-20 Siemens Aktiengesellschaft Röntgengerät umfassend eine Multi-Fokus-Röntgenröhre
KR101773960B1 (ko) * 2011-06-30 2017-09-12 한국전자통신연구원 단층합성영상 시스템
KR101823876B1 (ko) * 2011-07-22 2018-01-31 한국전자통신연구원 스페이서를 이용한 적층형 엑스선관 장치
KR101818681B1 (ko) * 2011-07-25 2018-01-16 한국전자통신연구원 게터 내장형 전계방출 엑스선관 장치
JP2015515091A (ja) * 2012-03-16 2015-05-21 ナノックス イメージング ピーエルシー 電子放出構造を有する装置
JP6139655B2 (ja) * 2012-03-19 2017-05-31 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 平面観測と立体観測との間での漸進的遷移のための漸進的ｘ線焦点スポット移動
US8513619B1 (en) * 2012-05-10 2013-08-20 Kla-Tencor Corporation Non-planar extractor structure for electron source
US10068740B2 (en) * 2012-05-14 2018-09-04 The General Hospital Corporation Distributed, field emission-based X-ray source for phase contrast imaging
KR101341672B1 (ko) * 2012-07-27 2013-12-16 경희대학교 산학협력단 디지털 엑스레이 소스
US9922793B2 (en) 2012-08-16 2018-03-20 Nanox Imaging Plc Image capture device
US8866068B2 (en) 2012-12-27 2014-10-21 Schlumberger Technology Corporation Ion source with cathode having an array of nano-sized projections
KR20140106291A (ko) * 2013-02-26 2014-09-03 삼성전자주식회사 평판형 엑스선 발생기를 구비한 엑스선 영상 시스템, 엑스선 발생기 및 전자 방출소자
JP6188470B2 (ja) * 2013-07-24 2017-08-30 キヤノン株式会社 放射線発生装置及びそれを用いた放射線撮影システム
CN103462630B (zh) * 2013-09-13 2015-04-08 深圳先进技术研究院 Ct系统及ct扫描方法
JP6202995B2 (ja) * 2013-11-05 2017-09-27 東芝電子管デバイス株式会社 回転陽極型ｘ線管装置
CN105793952B (zh) * 2013-11-27 2018-12-11 纳欧克斯影像有限公司 以耐离子轰击配置的电子发射结构
WO2015092676A1 (fr) * 2013-12-18 2015-06-25 Koninklijke Philips N.V. Détecteur de comptage de photons
US11051771B2 (en) 2014-06-17 2021-07-06 Xintek, Inc. Stationary intraoral tomosynthesis imaging systems, methods, and computer readable media for three dimensional dental imaging
JP6441015B2 (ja) * 2014-10-06 2018-12-19 キヤノンメディカルシステムズ株式会社 Ｘ線診断装置及びｘ線管制御方法
EP3210538B1 (fr) * 2014-10-24 2020-10-14 Vatech Co., Ltd. Appareil de génération de rayons x pour imagerie intra-orale à rayons x
KR102368907B1 (ko) * 2015-01-30 2022-03-03 주식회사 바텍 구강 내 x선 촬영용 x선 발생장치 및 이를 포함하는 구강 내 x선 촬영 시스템
CN104411081A (zh) * 2014-11-13 2015-03-11 重庆大学 用于微纳ct系统的线阵列微纳焦点x射线源
FR3042307B1 (fr) * 2015-10-07 2017-11-03 Thales Sa Equilibrage d'un tube a sortie inductive multifaisceau
EP3171163B1 (fr) * 2015-11-18 2022-05-04 FEI Company Technique d'imagerie par rayons x
US10991539B2 (en) * 2016-03-31 2021-04-27 Nano-X Imaging Ltd. X-ray tube and a conditioning method thereof
US11282668B2 (en) * 2016-03-31 2022-03-22 Nano-X Imaging Ltd. X-ray tube and a controller thereof
CN106409639B (zh) * 2016-12-15 2019-03-01 清华大学 薄膜光阴极分布式x射线发生装置及具有该装置的ct设备
CN106783484B (zh) * 2016-12-15 2018-10-16 清华大学 光阴极分布式x射线发生装置及具有该装置的ct设备
CN106531592B (zh) 2016-12-29 2018-12-28 清华大学 电子枪以及具有该电子枪的x射线光源与ct设备
AU2018273789B2 (en) * 2017-05-25 2022-07-21 Micro-X Limited Device for producing radio frequency modulated X-ray radiation
EP3658033A4 (fr) * 2017-07-26 2021-02-24 Shenzhen Xpectvision Technology Co., Ltd. Système doté d'une source de rayons x à expansion spatiale pour imagerie par rayons x
US10585206B2 (en) 2017-09-06 2020-03-10 Rapiscan Systems, Inc. Method and system for a multi-view scanner
EP3734637A4 (fr) 2018-01-31 2021-10-13 Nano-X Imaging Ltd Tube à rayons x à cathode froide et son procédé de commande
AU2018425050B2 (en) * 2018-05-25 2024-01-11 Micro-X Limited A device for applying beamforming signal processing to RF modulated X-rays
EP3748667A1 (fr) * 2019-06-05 2020-12-09 Siemens Healthcare GmbH Émetteur en silicium à effet de champ
US20240047167A1 (en) * 2019-10-03 2024-02-08 Nano-X Imaging Ltd. Systems and methods for improving x-ray sources with switchable electron emitters
CN110988043B (zh) * 2019-11-09 2022-05-13 天津大学 基于多频加权频差的多介质分离成像方法
US11719652B2 (en) 2020-02-04 2023-08-08 Kla Corporation Semiconductor metrology and inspection based on an x-ray source with an electron emitter array
US11404235B2 (en) 2020-02-05 2022-08-02 John Thomas Canazon X-ray tube with distributed filaments
US11212902B2 (en) 2020-02-25 2021-12-28 Rapiscan Systems, Inc. Multiplexed drive systems and methods for a multi-emitter X-ray source
EP3933881A1 (fr) 2020-06-30 2022-01-05 VEC Imaging GmbH & Co. KG Source de rayons x à plusieurs réseaux
US20240055215A1 (en) * 2022-08-10 2024-02-15 X-Sight Incorporated Design for field emitter x-ray source reliability

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521901A (en) 1983-03-01 1985-06-04 Imatron Associates Scanning electron beam computed tomography scanner with ion aided focusing
DE19639920C2 (de) * 1996-09-27 1999-08-26 Siemens Ag Röntgenröhre mit variablem Fokus
JP3745844B2 (ja) * 1996-10-14 2006-02-15 浜松ホトニクス株式会社 電子管
FR2764731A1 (fr) * 1997-06-13 1998-12-18 Commissariat Energie Atomique Tube a rayons x comportant une source d'electrons a micropointes et des moyens de focalisations magnetique
US6115452A (en) * 1998-01-08 2000-09-05 The Regents Of The University Of California X-ray radiography with highly charged ions
SE9902118D0 (sv) * 1999-06-04 1999-06-04 Radi Medical Systems Miniature X-ray source
US6749337B1 (en) * 2000-01-26 2004-06-15 Varian Medical Systems, Inc. X-ray tube and method of manufacture
US6456691B2 (en) * 2000-03-06 2002-09-24 Rigaku Corporation 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
US7082182B2 (en) * 2000-10-06 2006-07-25 The University Of North Carolina At Chapel Hill Computed tomography system for imaging of human and small animal
US7085351B2 (en) * 2000-10-06 2006-08-01 University Of North Carolina At Chapel Hill Method and apparatus for controlling electron beam current
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
US6553096B1 (en) 2000-10-06 2003-04-22 The University Of North Carolina Chapel Hill X-ray generating mechanism using electron field emission cathode
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
US6760407B2 (en) * 2002-04-17 2004-07-06 Ge Medical Global Technology Company, Llc X-ray source and method having cathode with curved emission surface
DE60330457D1 (de) * 2003-10-03 2010-01-21 Nucletron Bv Festkörper-Applikator zur Brachytherapie
US7192031B2 (en) 2004-02-05 2007-03-20 General Electric Company Emitter array configurations for a stationary CT system
US20080187093A1 (en) * 2007-02-06 2008-08-07 John Scott Price X-ray generation using secondary emission electron source
US7627087B2 (en) * 2007-06-28 2009-12-01 General Electric Company One-dimensional grid mesh for a high-compression electron gun

Also Published As

Publication number Publication date
US7809114B2 (en) 2010-10-05
CN101494149A (zh) 2009-07-29
CN101494149B (zh) 2013-10-30
FR2926668A1 (fr) 2009-07-24
US20090185660A1 (en) 2009-07-23

Similar Documents

Publication Publication Date Title
FR2926668B1 (fr) Source d'electrons a base d'emetteurs de champs pour radiographie multipoint.
EP2068339A4 (fr) Source d'électrons
GB2444624B (en) x-ray source
SG171584A1 (en) Nanoparticulate metal boride composition and its use for identification- marking plastic parts
WO2009088882A3 (fr) Transistor à nanotube de carbone vertical à contact de bord
NL1033936A1 (nl) Röntgen-CT-apparatuur.
MX2009013035A (es) Dispensador de fluidos.
NL1033652A1 (nl) Röntgen-CT-apparatuur.
UA97382C2 (ru) Таннат разагилина
CL2007002182S1 (es) Terminal.
NL1036209A1 (nl) Filament assembly having reduced electron beam time constant.
ATE493122T1 (de) Casein-komplexe
EP2006860A4 (fr) Appareil de production de faisceau d'électrons
UY31688A1 (es) Plaguicidas
PT2124419E (pt) Um dispositivo de gestão orientado a objetos para mensagem asn.1
EP2141073A4 (fr) Stérilisateur à faisceau électronique
EP2175472A4 (fr) Source d'électrons
EP2148354A4 (fr) Source d'électrons
EP2061064A4 (fr) Source d'électrons
SI2012701T1 (sl) Odstranljiva embalaža za sterilizacijo
MX2009006811A (es) Materiales polimericos.
ITTO20080131U1 (it) An iron.
EP2197015A4 (fr) Source d'électrons et appareil à faisceau d'électrons
TW200638564A (en) Photonic device
DE502007002542D1 (de) Drehbare, wassergekühlte Röntgenquelle

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 8

PLSC Publication of the preliminary search report

Effective date: 20160729

PLFP Fee payment

Year of fee payment: 9

PLFP Fee payment

Year of fee payment: 10

PLFP Fee payment

Year of fee payment: 12

PLFP Fee payment

Year of fee payment: 13

PLFP Fee payment

Year of fee payment: 14

PLFP Fee payment

Year of fee payment: 15

PLFP Fee payment

Year of fee payment: 16