CA922878A - Method for fabricating a dimpled concave dispenser cathode incorporating a grid - Google Patents

Method for fabricating a dimpled concave dispenser cathode incorporating a grid

Info

Publication number
CA922878A
CA922878A CA085480A CA85480A CA922878A CA 922878 A CA922878 A CA 922878A CA 085480 A CA085480 A CA 085480A CA 85480 A CA85480 A CA 85480A CA 922878 A CA922878 A CA 922878A
Authority
CA
Canada
Prior art keywords
fabricating
grid
dispenser cathode
dimpled
concave
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
CA085480A
Inventor
V. Miram George
B. Kuehne Gerhard
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates Inc
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 Varian Associates Inc filed Critical Varian Associates Inc
Application granted granted Critical
Publication of CA922878A publication Critical patent/CA922878A/en
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
    • H01J9/047—Cathodes having impregnated bodies
CA085480A 1969-06-16 1970-06-15 Method for fabricating a dimpled concave dispenser cathode incorporating a grid Expired CA922878A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83345869A 1969-06-16 1969-06-16

Publications (1)

Publication Number Publication Date
CA922878A true CA922878A (en) 1973-03-20

Family

ID=25264477

Family Applications (1)

Application Number Title Priority Date Filing Date
CA085480A Expired CA922878A (en) 1969-06-16 1970-06-15 Method for fabricating a dimpled concave dispenser cathode incorporating a grid

Country Status (6)

Country Link
US (1) US3594885A (en)
JP (1) JPS5220817B1 (en)
CA (1) CA922878A (en)
DE (1) DE2029675A1 (en)
FR (1) FR2052633A5 (en)
GB (1) GB1264765A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3843902A (en) * 1972-08-24 1974-10-22 Varian Associates Gridded convergent flow electron gun
US3967150A (en) * 1975-01-31 1976-06-29 Varian Associates Grid controlled electron source and method of making same
DE2535467C2 (en) * 1975-08-08 1985-06-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Method of making a cathode of a grid controlled power tube
US4583021A (en) * 1983-04-18 1986-04-15 Litton Systems, Inc. Electron gun with improved cathode and shadow grid configuration
JPS6273362U (en) * 1985-10-24 1987-05-11
US4734073A (en) * 1986-10-10 1988-03-29 The United States Of America As Represented By The Secretary Of The Army Method of making a thermionic field emitter cathode
FR2723502B1 (en) * 1994-08-04 1997-01-10 Valeo Electronique COLLECTOR TERMINAL FOR THE CONTACT OF A BATTERY FOR THE SUPPLY OF AN ELECTRONIC CIRCUIT, ELECTRONIC CIRCUIT AND REMOTE TRANSMITTER INCORPORATING THE SAME
KR100782370B1 (en) * 2006-08-04 2007-12-07 삼성전자주식회사 Ion analysis system based on analyzers of ion energy distribution using retarded electric fields
US7723699B2 (en) * 2007-06-26 2010-05-25 Varian Semiconductor Equipment Associates, Inc. Cathode having electron production and focusing grooves, ion source and related method
US7978804B2 (en) * 2007-12-10 2011-07-12 Schlumberger Technology Corporation Low power neutron generators
CN105874554B (en) * 2013-12-30 2018-05-08 迈普尔平版印刷Ip有限公司 Cathode arrangement, electron gun and the etching system including this electron gun

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE550302A (en) * 1955-08-15
US3067486A (en) * 1957-06-20 1962-12-11 Itt Target electrode for barrier grid storage tube and method of making same
US2977496A (en) * 1958-12-04 1961-03-28 Machlett Lab Inc Electrode structure for electron tubes
US3139552A (en) * 1960-03-07 1964-06-30 Hughes Aircraft Co Charged particle gun with nonspherical emissive surface
NL135267C (en) * 1961-10-04

Also Published As

Publication number Publication date
JPS5220817B1 (en) 1977-06-06
FR2052633A5 (en) 1971-04-09
US3594885A (en) 1971-07-27
GB1264765A (en) 1972-02-23
DE2029675A1 (en) 1971-01-21

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