FR2395595B1 - - Google Patents

Info

Publication number
FR2395595B1
FR2395595B1 FR7818098A FR7818098A FR2395595B1 FR 2395595 B1 FR2395595 B1 FR 2395595B1 FR 7818098 A FR7818098 A FR 7818098A FR 7818098 A FR7818098 A FR 7818098A FR 2395595 B1 FR2395595 B1 FR 2395595B1
Authority
FR
France
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.)
Expired
Application number
FR7818098A
Other languages
French (fr)
Other versions
FR2395595A1 (fr
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of FR2395595A1 publication Critical patent/FR2395595A1/fr
Application granted granted Critical
Publication of FR2395595B1 publication Critical patent/FR2395595B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
FR7818098A 1977-06-21 1978-06-16 Cathode chaude pour tube a rayons x Granted FR2395595A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772727907 DE2727907A1 (de) 1977-06-21 1977-06-21 Roentgenroehren-gluehkathode

Publications (2)

Publication Number Publication Date
FR2395595A1 FR2395595A1 (fr) 1979-01-19
FR2395595B1 true FR2395595B1 (de) 1982-03-19

Family

ID=6011984

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7818098A Granted FR2395595A1 (fr) 1977-06-21 1978-06-16 Cathode chaude pour tube a rayons x

Country Status (2)

Country Link
DE (1) DE2727907A1 (de)
FR (1) FR2395595A1 (de)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4698835A (en) * 1984-05-31 1987-10-06 Kabushiki Kaisha Toshiba X-ray tube apparatus
EP0235619B1 (de) * 1986-02-21 1989-08-16 Siemens Aktiengesellschaft Röntgenröhren-Glühkathode
DE4026301A1 (de) * 1990-08-20 1992-02-27 Siemens Ag Elektronenemitter einer roentgenroehre
US5511105A (en) * 1993-07-12 1996-04-23 Siemens Aktiengesellschaft X-ray tube with multiple differently sized focal spots and method for operating same
DE19510048C2 (de) * 1995-03-20 1998-05-14 Siemens Ag Röntgenröhre
EP0958844A3 (de) * 1998-05-15 2000-08-09 Siemens Aktiengesellschaft Magnetstimulationsgerät
US6259193B1 (en) 1998-06-08 2001-07-10 General Electric Company Emissive filament and support structure
DE19911081A1 (de) * 1999-03-12 2000-09-21 Siemens Ag Röntgenröhre mit konzentrischem Mehrfoken-Rundstrahlemitter
DE10016125A1 (de) 1999-04-29 2000-11-02 Siemens Ag Lebensdaueroptimierter Emitter
DE10004986A1 (de) * 2000-02-04 2001-08-02 Siemens Ag Thermionischer Emitter
DE10012203C1 (de) * 2000-03-13 2001-07-26 Siemens Ag Thermionischer Flachemitter
DE10029253C1 (de) 2000-06-14 2001-10-25 Siemens Ag Direktgeheizter thermionischer Flachemitter
DE102006018633B4 (de) * 2006-04-21 2011-12-29 Siemens Ag Flächenemitter und Röntgenröhre mit Flächenemitter
WO2007132380A2 (en) * 2006-05-11 2007-11-22 Philips Intellectual Property & Standards Gmbh Emitter design including emergency operation mode in case of emitter-damage for medical x-ray application
EP2084728A2 (de) * 2006-10-17 2009-08-05 Philips Intellectual Property & Standards GmbH Emitter für röntgenröhren und erwärmungsverfahren dafür
DE102008011841B4 (de) 2008-02-29 2012-10-31 Siemens Aktiengesellschaft Kathode
DE102008020164A1 (de) 2008-04-22 2009-10-29 Siemens Aktiengesellschaft Kathode mit einem Flachemitter
DE102008020165A1 (de) 2008-04-22 2009-10-29 Siemens Aktiengesellschaft Kathode mit einem Flachemitter
DE102008020163A1 (de) 2008-04-22 2009-10-29 Siemens Aktiengesellschaft Kathode
DE102008020187A1 (de) 2008-04-22 2009-10-29 Siemens Aktiengesellschaft Kathode mit einem Flachemitter
DE102008026634B4 (de) 2008-06-04 2011-01-05 Siemens Aktiengesellschaft Feldemissionskathode sowie Röntgenröhre mit einer Feldemissionskathode
DE102008026633A1 (de) 2008-06-04 2009-12-10 Siemens Aktiengesellschaft Röntgenröhre
DE102008029355B4 (de) 2008-06-20 2011-09-22 Siemens Aktiengesellschaft Röntgenröhre
US7924983B2 (en) 2008-06-30 2011-04-12 Varian Medical Systems, Inc. Thermionic emitter designed to control electron beam current profile in two dimensions
DE102008032995A1 (de) 2008-07-14 2010-01-21 Siemens Aktiengesellschaft Röntgenröhre
DE102008046721B4 (de) 2008-09-11 2011-04-21 Siemens Aktiengesellschaft Kathode mit einem Parallel-Flachemitter
DE102010020151A1 (de) * 2010-05-11 2011-11-17 Siemens Aktiengesellschaft Thermionischer Flachemitter und zugehöriges Verfahren zum Betrieb einer Röntgenröhre
DE102010038904B4 (de) 2010-08-04 2012-09-20 Siemens Aktiengesellschaft Kathode
DE102010039765B4 (de) 2010-08-25 2015-11-19 Siemens Aktiengesellschaft Kathode
DE102011004372A1 (de) 2011-02-18 2011-11-17 Siemens Aktiengesellschaft Kathode
DE102012205715A1 (de) 2012-04-05 2013-10-10 Siemens Aktiengesellschaft Elektronenemitter für eine Röntgenröhre und Röntgenröhre mit einem solchen Elektronenemitter
DE102012209089A1 (de) * 2012-05-30 2013-12-05 Siemens Aktiengesellschaft Röntgenröhre mit einer Drehanode
JP6223973B2 (ja) * 2012-07-02 2017-11-01 東芝電子管デバイス株式会社 Ｘ線管
DE102014211688A1 (de) 2014-06-18 2015-12-24 Siemens Aktiengesellschaft Flachemitter
DE102015211235B4 (de) 2015-06-18 2023-03-23 Siemens Healthcare Gmbh Emitter
DE102015215690A1 (de) 2015-08-18 2017-03-09 Siemens Healthcare Gmbh Emitteranordnung
EP3226277A1 (de) * 2016-03-31 2017-10-04 General Electric Company Abgewinkelter flacher emitter für hochleistungskathode mit elektrostatischer emissionskontrolle
US10468222B2 (en) 2016-03-31 2019-11-05 General Electric Company Angled flat emitter for high power cathode with electrostatic emission control
DE102017202403B4 (de) 2017-02-15 2024-01-11 Siemens Healthcare Gmbh Thermionische Emissionsvorrichtung
US10636608B2 (en) * 2017-06-05 2020-04-28 General Electric Company Flat emitters with stress compensation features
DE202018001615U1 (de) 2018-03-27 2018-04-24 Siemens Healthcare Gmbh Flachemitter
DE102019203630B3 (de) 2019-03-18 2020-04-02 Siemens Healthcare Gmbh Flachemitter
CN114078674A (zh) * 2021-11-23 2022-02-22 武汉联影医疗科技有限公司 一种电子发射元件和x射线管

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1287699B (de) * 1969-01-23
DE336781C (de) * 1919-07-16 1921-05-18 Siemens & Halske Akt Ges Gluehkathode fuer Roentgenroehren
DE566993C (de) * 1927-07-17 1932-12-24 Siemens Schuckertwerke Akt Ges Gluehkathode fuer Elektronenroehren
BE359165A (de) * 1928-04-14
US2256297A (en) * 1939-08-31 1941-09-16 Rca Corp Electron discharge device
DE744452C (de) * 1940-03-29 1944-01-19 Aeg Unmittelbar geheizte Kathode, insbesondere fuer Hochleistungsroehren
US2468736A (en) * 1946-06-13 1949-05-03 Raytheon Mfg Co Slotted cathode structure
FR943875A (fr) * 1947-03-06 1949-03-21 Radio Electr Soc Fr Cathodes pour tubes à décharge électronique
FR978627A (fr) * 1948-11-24 1951-04-16 Csf Cathodes à chauffage direct pour tubes électroniques spéciaux de grande puissance
FR58949E (fr) * 1948-12-30 1954-04-22 Csf Cathodes à chauffage direct pour tubes électroniques spéciaux de grande puissance
GB1011398A (en) * 1963-01-22 1965-11-24 M O Valve Co Ltd Improvements in or relating to thermionic cathodes
DE2135326A1 (de) * 1971-07-15 1973-01-25 Philips Patentverwaltung Roentgenroehre

Also Published As

Publication number Publication date
DE2727907C2 (de) 1987-11-05
FR2395595A1 (fr) 1979-01-19
DE2727907A1 (de) 1979-01-18

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Legal Events

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