DE102013110166A1 - Emissionsfläche für eine Röntgenvorrichtung - Google Patents

Emissionsfläche für eine Röntgenvorrichtung Download PDF

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Publication number
DE102013110166A1
DE102013110166A1 DE102013110166.6A DE102013110166A DE102013110166A1 DE 102013110166 A1 DE102013110166 A1 DE 102013110166A1 DE 102013110166 A DE102013110166 A DE 102013110166A DE 102013110166 A1 DE102013110166 A1 DE 102013110166A1
Authority
DE
Germany
Prior art keywords
emission region
shaped
emission
disc
electron
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.)
Withdrawn
Application number
DE102013110166.6A
Other languages
German (de)
English (en)
Inventor
Xi Zhang
Carey S. Rogers
Mark Alan Frontera
Joseph Donald Robert
Ethan James Westcot
Vance Scott Robinson
Yun Zou
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 DE102013110166A1 publication Critical patent/DE102013110166A1/de
Withdrawn legal-status Critical Current

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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
    • H01J1/13—Solid thermionic cathodes
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/16—Cathodes heated directly by an electric current characterised by the shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/06—Cathodes
    • H01J35/064—Details of the emitter, e.g. material or structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2235/00—X-ray tubes
    • H01J2235/12—Cooling
    • H01J2235/1212—Cooling of the cathode

Landscapes

  • X-Ray Techniques (AREA)
  • Solid Thermionic Cathode (AREA)
DE102013110166.6A 2012-09-14 2013-09-16 Emissionsfläche für eine Röntgenvorrichtung Withdrawn DE102013110166A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/619,587 US9251987B2 (en) 2012-09-14 2012-09-14 Emission surface for an X-ray device
US13/619,587 2012-09-14

Publications (1)

Publication Number Publication Date
DE102013110166A1 true DE102013110166A1 (de) 2014-05-22

Family

ID=50274452

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102013110166.6A Withdrawn DE102013110166A1 (de) 2012-09-14 2013-09-16 Emissionsfläche für eine Röntgenvorrichtung

Country Status (3)

Country Link
US (1) US9251987B2 (https=)
JP (1) JP6378473B2 (https=)
DE (1) DE102013110166A1 (https=)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9887061B2 (en) * 2012-09-12 2018-02-06 Shimadzu Corporation X-ray tube device and method for using X-ray tube device
US9202663B2 (en) * 2012-12-05 2015-12-01 Shimadzu Corporation Flat filament for an X-ray tube, and an X-ray tube
US9711320B2 (en) * 2014-04-29 2017-07-18 General Electric Company Emitter devices for use in X-ray tubes
US9711321B2 (en) 2014-12-30 2017-07-18 General Electric Company Low aberration, high intensity electron beam for X-ray tubes
US9953797B2 (en) * 2015-09-28 2018-04-24 General Electric Company Flexible flat emitter for X-ray tubes
US9928985B2 (en) * 2016-02-29 2018-03-27 General Electric Company Robust emitter for minimizing damage from ion bombardment
JP6744116B2 (ja) * 2016-04-01 2020-08-19 キヤノン電子管デバイス株式会社 エミッター及びｘ線管
US10636608B2 (en) 2017-06-05 2020-04-28 General Electric Company Flat emitters with stress compensation features
EP3496127A1 (en) * 2017-12-07 2019-06-12 Koninklijke Philips N.V. Cathode assembly component for x-ray imaging
USD1058525S1 (en) * 2023-04-06 2025-01-21 GE Precision Healthcare LLC Cathode shield
US20250292986A1 (en) * 2024-03-18 2025-09-18 GE Precision Healthcare LLC Flat emitter with compliant supported end
WO2026003717A1 (de) * 2024-06-28 2026-01-02 Helmut Fischer GmbH Institut für Elektronik und Messtechnik Filament und kathode für eine röntgenröhre

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB524240A (en) 1939-01-25 1940-08-01 Werner Ehrenberg Improvements in or relating to cathodes for electron discharge devices
US4795940A (en) * 1987-10-14 1989-01-03 The United States Of America As Represented By The United States Department Of Energy Large area directly heated lanthanum hexaboride cathode structure having predetermined emission profile
US5343112A (en) * 1989-01-18 1994-08-30 Balzers Aktiengesellschaft Cathode arrangement
US6115453A (en) 1997-08-20 2000-09-05 Siemens Aktiengesellschaft Direct-Heated flats emitter for emitting an electron beam
DE10016125A1 (de) 1999-04-29 2000-11-02 Siemens Ag Lebensdaueroptimierter Emitter
DE10029253C1 (de) * 2000-06-14 2001-10-25 Siemens Ag Direktgeheizter thermionischer Flachemitter
DE10135995C2 (de) * 2001-07-24 2003-10-30 Siemens Ag Direktgeheizter thermionischer Flachemitter
EP2341524B1 (en) * 2006-05-11 2014-07-02 Philips Intellectual Property & Standards GmbH Emitter design including emergency operation mode in case of emitter-damage for medical x-ray application
EP2084728A2 (en) 2006-10-17 2009-08-05 Philips Intellectual Property & Standards GmbH Emitter for x-ray tubes and heating method therefore
US20080187093A1 (en) * 2007-02-06 2008-08-07 John Scott Price X-ray generation using secondary emission electron source
WO2008146248A1 (en) * 2007-06-01 2008-12-04 Philips Intellectual Property & Standards Gmbh X-ray emitting foil with temporary fixing bars and preparing method therefore
CN101779265B (zh) 2007-07-24 2013-01-02 皇家飞利浦电子股份有限公司 热电子发射器、制备其的方法和包括其的x射线源
EP2174335B1 (en) 2007-07-24 2015-09-09 Philips Intellectual Property & Standards GmbH Thermionic electron emitter and x-ray source including same
US7801277B2 (en) 2008-03-26 2010-09-21 General Electric Company Field emitter based electron source with minimized beam emittance growth
US7924983B2 (en) * 2008-06-30 2011-04-12 Varian Medical Systems, Inc. Thermionic emitter designed to control electron beam current profile in two dimensions
JP2011040272A (ja) * 2009-08-11 2011-02-24 Shimadzu Corp 平板フィラメントおよびそれを用いたｘ線管装置
CA2755012C (en) * 2010-10-14 2017-10-31 Camfil Farr (Canada) Inc. Turbo screen

Also Published As

Publication number Publication date
US20140079187A1 (en) 2014-03-20
JP6378473B2 (ja) 2018-08-22
US9251987B2 (en) 2016-02-02
JP2014063734A (ja) 2014-04-10

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Legal Events

Date Code Title Description
R082 Change of representative

Representative=s name: RUEGER, BARTHELT & ABEL PATENTANWAELTE, DE

Representative=s name: RUEGER ] ABEL PATENT- UND RECHTSANWAELTE, DE

Representative=s name: RUEGER ABEL PATENT- UND RECHTSANWAELTE, DE

R005 Application deemed withdrawn due to failure to request examination