DE3467467D1 - Thermionic cathode capable of high emission for an electron tube, and method of manufacture - Google Patents

Thermionic cathode capable of high emission for an electron tube, and method of manufacture

Info

Publication number
DE3467467D1
DE3467467D1 DE8484110730T DE3467467T DE3467467D1 DE 3467467 D1 DE3467467 D1 DE 3467467D1 DE 8484110730 T DE8484110730 T DE 8484110730T DE 3467467 T DE3467467 T DE 3467467T DE 3467467 D1 DE3467467 D1 DE 3467467D1
Authority
DE
Germany
Prior art keywords
high emission
thermionic cathode
support
manufacture
electron tube
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.)
Expired
Application number
DE8484110730T
Other languages
English (en)
Inventor
Charley Dr Buxbaum
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Application granted granted Critical
Publication of DE3467467D1 publication Critical patent/DE3467467D1/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part
    • 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
    • H01J1/14—Solid thermionic cathodes characterised by the material
DE8484110730T 1983-09-30 1984-09-08 Thermionic cathode capable of high emission for an electron tube, and method of manufacture Expired DE3467467D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH532083 1983-09-30

Publications (1)

Publication Number Publication Date
DE3467467D1 true DE3467467D1 (en) 1987-12-17

Family

ID=4291602

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484110730T Expired DE3467467D1 (en) 1983-09-30 1984-09-08 Thermionic cathode capable of high emission for an electron tube, and method of manufacture

Country Status (4)

Country Link
US (1) US4752713A (de)
EP (1) EP0143222B1 (de)
AT (1) ATE30811T1 (de)
DE (1) DE3467467D1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8701739A (nl) * 1987-07-23 1989-02-16 Philips Nv Oxydekathode.
DE4026298A1 (de) * 1990-08-20 1992-02-27 Siemens Ag Roentgenroehre mit einem elektronenemitter
DE4026301A1 (de) * 1990-08-20 1992-02-27 Siemens Ag Elektronenemitter einer roentgenroehre
DE4026299A1 (de) * 1990-08-20 1992-02-27 Siemens Ag Roentgenanordnung mit einem roentgenstrahler
DE19521724A1 (de) * 1994-06-22 1996-01-04 Siemens Ag Verfahren zur Herstellung einer Glühkathode für eine Elektronenröhre
KR100338035B1 (ko) * 1994-12-28 2002-11-23 삼성에스디아이 주식회사 직열형음극및그제조방법
KR100442300B1 (ko) * 2002-01-04 2004-07-30 엘지.필립스디스플레이(주) 음극선관용 음극
DE102008020163A1 (de) * 2008-04-22 2009-10-29 Siemens Aktiengesellschaft Kathode
US20090284124A1 (en) * 2008-04-22 2009-11-19 Wolfgang Kutschera Cathode composed of materials with different electron works functions
US8385506B2 (en) 2010-02-02 2013-02-26 General Electric Company X-ray cathode and method of manufacture thereof
US8938050B2 (en) 2010-04-14 2015-01-20 General Electric Company Low bias mA modulation for X-ray tubes
JP5527224B2 (ja) * 2011-01-14 2014-06-18 ウシオ電機株式会社 ショートアーク型放電ランプ
US9922791B2 (en) 2016-05-05 2018-03-20 Arizona Board Of Regents On Behalf Of Arizona State University Phosphorus doped diamond electrode with tunable low work function for emitter and collector applications
US10121657B2 (en) 2016-05-10 2018-11-06 Arizona Board Of Regents On Behalf Of Arizona State University Phosphorus incorporation for n-type doping of diamond with (100) and related surface orientation
US10704160B2 (en) 2016-05-10 2020-07-07 Arizona Board Of Regents On Behalf Of Arizona State University Sample stage/holder for improved thermal and gas flow control at elevated growth temperatures
RU2627707C1 (ru) * 2016-08-02 2017-08-10 Акционерное общество "Научно-производственное предприятие "Исток" имени А.И. Шокина" (АО "НПП "Исток" им. Шокина") Способ получения прессованного металлосплавного палладий-бариевого катода
RU2627709C1 (ru) * 2016-08-02 2017-08-10 Акционерное общество "Научно-производственное предприятие "Исток" имени А.И. Шокина" (АО "НПП "Исток" им. Шокина") Способ получения катодного сплава на основе металла платиновой группы и бария
RU2647388C2 (ru) * 2016-08-02 2018-03-15 Акционерное общество "Научно-производственное предприятие "Исток" имени А.И. Шокина" (АО "НПП "Исток" им. Шокина") Прессованный металлосплавный палладий-бариевый катод и способ его получения
US10418475B2 (en) 2016-11-28 2019-09-17 Arizona Board Of Regents On Behalf Of Arizona State University Diamond based current aperture vertical transistor and methods of making and using the same

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB307099A (en) * 1927-12-01 1929-03-01 Ernest Yeoman Robinson Improvements in the manufacture of electron-emitting bodies
FR661813A (fr) * 1927-12-31 1929-07-30 Etablissements Ind De E C Gram Cathode à grand pouvoir émissif pour tube à vide à émission électronique
DE1211724B (de) * 1963-06-07 1966-03-03 Telefunken Patent Gepresste Matrixkathode fuer elektrische Entladungsroehren
US3684912A (en) * 1970-10-22 1972-08-15 Sylvania Electric Prod Tungsten-alloy electrode with brazable leads integral with emitter head
US4019081A (en) * 1974-10-25 1977-04-19 Bbc Brown Boveri & Company Limited Reaction cathode
DE2822665A1 (de) * 1978-05-05 1979-11-08 Bbc Brown Boveri & Cie Gluehkathodenmaterial
CH629033A5 (de) * 1978-05-05 1982-03-31 Bbc Brown Boveri & Cie Gluehkathode.
JPS6023454B2 (ja) * 1978-11-29 1985-06-07 株式会社日立製作所 電子管陰極
FR2445605A1 (fr) * 1978-12-27 1980-07-25 Thomson Csf Cathode a chauffage direct et tube electronique haute frequence comportant une telle cathode
JPS5596531A (en) * 1979-01-19 1980-07-22 Hitachi Ltd Directly heated cathode for electron tube
FR2462782A1 (fr) * 1979-08-03 1981-02-13 Thomson Csf Procede de realisation d'une couche contenant du silicium et dispositif de conversion photoelectrique mettant en oeuvre ce procede
FR2469792A1 (fr) * 1979-11-09 1981-05-22 Thomson Csf Cathode thermo-ionique, son procede de fabrication et tube electronique incorporant une telle cathode
DE3148441A1 (de) * 1981-12-08 1983-07-21 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren zur herstellung einer thermionischen kathode
JPS58133739A (ja) * 1982-02-03 1983-08-09 Hitachi Ltd 含浸型陰極

Also Published As

Publication number Publication date
EP0143222B1 (de) 1987-11-11
US4752713A (en) 1988-06-21
ATE30811T1 (de) 1987-11-15
EP0143222A1 (de) 1985-06-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee