DE2960432D1 - Hot cathode - Google Patents

Hot cathode

Info

Publication number
DE2960432D1
DE2960432D1 DE7979200056T DE2960432T DE2960432D1 DE 2960432 D1 DE2960432 D1 DE 2960432D1 DE 7979200056 T DE7979200056 T DE 7979200056T DE 2960432 T DE2960432 T DE 2960432T DE 2960432 D1 DE2960432 D1 DE 2960432D1
Authority
DE
Germany
Prior art keywords
hot cathode
cathode
hot
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
DE7979200056T
Other languages
English (en)
Inventor
Charley Dipl Ing 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 DE2960432D1 publication Critical patent/DE2960432D1/de
Expired legal-status Critical Current

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
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • 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
DE7979200056T 1978-05-05 1979-02-02 Hot cathode Expired DE2960432D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH489078A CH629033A5 (de) 1978-05-05 1978-05-05 Gluehkathode.

Publications (1)

Publication Number Publication Date
DE2960432D1 true DE2960432D1 (en) 1981-10-08

Family

ID=4284318

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19782822614 Withdrawn DE2822614A1 (de) 1978-05-05 1978-05-24 Gluehkathode
DE7979200056T Expired DE2960432D1 (en) 1978-05-05 1979-02-02 Hot cathode

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19782822614 Withdrawn DE2822614A1 (de) 1978-05-05 1978-05-24 Gluehkathode

Country Status (6)

Country Link
US (1) US4274030A (de)
EP (1) EP0005279B1 (de)
JP (1) JPS54146951A (de)
AT (1) AT367567B (de)
CH (1) CH629033A5 (de)
DE (2) DE2822614A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2822665A1 (de) * 1978-05-05 1979-11-08 Bbc Brown Boveri & Cie Gluehkathodenmaterial
FR2445605A1 (fr) * 1978-12-27 1980-07-25 Thomson Csf Cathode a chauffage direct et tube electronique haute frequence comportant une telle cathode
GB2050045A (en) * 1979-05-29 1980-12-31 Emi Varian Ltd Thermionic cathode
DE3467467D1 (en) * 1983-09-30 1987-12-17 Bbc Brown Boveri & Cie Thermionic cathode capable of high emission for an electron tube, and method of manufacture
KR950012511A (ko) * 1993-10-05 1995-05-16 이헌조 음극선관용 함침형 음극
EP0651419B1 (de) * 1993-10-28 1998-06-24 Koninklijke Philips Electronics N.V. Vorratskathode und Herstellungsverfahren
JPH0850849A (ja) * 1994-05-31 1996-02-20 Nec Kansai Ltd 陰極部材およびそれを用いた電子管
DE4421810C2 (de) * 1994-06-22 1996-08-29 Siemens Ag Thermionischer Elektronenemitter und Verfahren zu dessen Herstellung
US6815876B1 (en) * 1999-06-23 2004-11-09 Agere Systems Inc. Cathode with improved work function and method for making the same
KR20020063396A (ko) * 2001-01-29 2002-08-03 삼성에스디아이 주식회사 전자관용 금속 음극
US20170330725A1 (en) * 2016-05-13 2017-11-16 Axcelis Technologies, Inc. Lanthanated tungsten ion source and beamline components

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3243637A (en) * 1962-10-31 1966-03-29 Gen Electric Dispenser cathode
FR1381553A (fr) * 1962-10-31 1964-12-14 Thomson Houston Comp Francaise Perfectionnements aux tubes électroniques
US3373307A (en) * 1963-11-21 1968-03-12 Philips Corp Dispenser cathode
GB1137124A (en) * 1964-12-23 1968-12-18 Nat Res Dev Thermionic electron emitter
DE1283403B (de) * 1966-08-05 1968-11-21 Siemens Ag Mittelbar geheizte Vorratskathode fuer elektrische Entladungsgefaesse
CH477756A (de) * 1967-02-08 1969-08-31 Philips Nv Elektrische Entladungsröhre mit einer Kathode, deren Inneres ein Aktivierungsmaterial enthält
NL154047B (nl) * 1968-01-09 1977-07-15 Philips Nv Elektrische ontladingsbuis met een kathode die in het inwendige activeringsmateriaal bevat, en kathode bestemd voor een dergelijke ontladingsbuis.
DE1614642B2 (de) * 1967-02-22 1971-10-07 Siemens AG, 1000 Berlin u 8000 München Vorratskathode insbesondere mk kathode
CH582951A5 (de) * 1973-07-09 1976-12-15 Bbc Brown Boveri & Cie
CH579824A5 (de) * 1974-10-25 1976-09-15 Bbc Brown Boveri & Cie
US4019081A (en) * 1974-10-25 1977-04-19 Bbc Brown Boveri & Company Limited Reaction cathode
US3967150A (en) * 1975-01-31 1976-06-29 Varian Associates Grid controlled electron source and method of making same
US4096406A (en) * 1976-05-10 1978-06-20 Varian Associates, Inc. Thermionic electron source with bonded control grid
US4165473A (en) * 1976-06-21 1979-08-21 Varian Associates, Inc. Electron tube with dispenser cathode

Also Published As

Publication number Publication date
US4274030A (en) 1981-06-16
JPS54146951A (en) 1979-11-16
DE2822614A1 (de) 1979-11-08
CH629033A5 (de) 1982-03-31
EP0005279A2 (de) 1979-11-14
EP0005279B1 (de) 1981-07-01
AT367567B (de) 1982-07-12
ATA82879A (de) 1981-11-15
EP0005279A3 (en) 1979-12-12

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: BBC BROWN BOVERI AG, BADEN, AARGAU, CH

8339 Ceased/non-payment of the annual fee