CA1150763A - Method of fabricating a dispenser cathode - Google Patents

Method of fabricating a dispenser cathode

Info

Publication number
CA1150763A
CA1150763A CA000340306A CA340306A CA1150763A CA 1150763 A CA1150763 A CA 1150763A CA 000340306 A CA000340306 A CA 000340306A CA 340306 A CA340306 A CA 340306A CA 1150763 A CA1150763 A CA 1150763A
Authority
CA
Canada
Prior art keywords
foil
cathode
dispenser cathode
pellet
coating
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
CA000340306A
Other languages
English (en)
French (fr)
Inventor
Louis R. Falce
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
Priority to CA000419635A priority Critical patent/CA1159722A/en
Priority to CA000419634A priority patent/CA1164522A/en
Application granted granted Critical
Publication of CA1150763A publication Critical patent/CA1150763A/en
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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
CA000340306A 1978-11-30 1979-11-21 Method of fabricating a dispenser cathode Expired CA1150763A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA000419635A CA1159722A (en) 1978-11-30 1983-01-17 Pellet of alkaline earth metal oxide impregnated with a solid, vaporizable organic protective material
CA000419634A CA1164522A (en) 1978-11-30 1983-01-17 Method of fabricating a dispenser cathode

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US96486778A 1978-11-30 1978-11-30
US964,867 1978-11-30

Publications (1)

Publication Number Publication Date
CA1150763A true CA1150763A (en) 1983-07-26

Family

ID=25509102

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000340306A Expired CA1150763A (en) 1978-11-30 1979-11-21 Method of fabricating a dispenser cathode

Country Status (4)

Country Link
JP (1) JPS5576538A (enrdf_load_stackoverflow)
CA (1) CA1150763A (enrdf_load_stackoverflow)
DE (2) DE2954658C2 (enrdf_load_stackoverflow)
GB (2) GB2043991B (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56118242A (en) * 1980-02-23 1981-09-17 New Japan Radio Co Ltd Thermion emission cathode
JPS56130057A (en) * 1980-03-18 1981-10-12 Matsushita Electric Ind Co Ltd Hot cathode
JPS587740A (ja) * 1981-06-30 1983-01-17 インタ−ナシヨナル・ビジネス・マシ−ンズ・コ−ポレ−シヨン カソード用の電子放出層を形成する方法
DE3374738D1 (en) * 1982-10-12 1988-01-07 Hughes Aircraft Co Method for fabricating a dispenser-reservoir housing for a dispenser cathode
DE4114856A1 (de) * 1991-05-07 1992-11-12 Licentia Gmbh Vorratskathode und verfahren zu deren herstellung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2881512A (en) * 1954-06-16 1959-04-14 Cie Generale De Telegraphite S Composition for sintered barium cathodes
DE1071849B (enrdf_load_stackoverflow) * 1955-02-05 1959-12-24
BE550302A (enrdf_load_stackoverflow) * 1955-08-15
US2874077A (en) * 1957-10-23 1959-02-17 Rauland Corp Thermionic cathodes
US3159461A (en) * 1958-10-20 1964-12-01 Bell Telephone Labor Inc Thermionic cathode
NL108689C (enrdf_load_stackoverflow) * 1959-01-23 1900-01-01
US3243638A (en) * 1962-10-31 1966-03-29 Gen Electric Dispenser cathode
DE2010479C3 (de) * 1970-03-05 1973-11-22 Siemens Ag, 1000 Berlin U. 8000 Muenchen Metallkapillar Kathode mit gegen Luftfeuchtigkeit geschütztem porösem Emissionsstofftrager
US4101800A (en) * 1977-07-06 1978-07-18 The United States Of America As Represented By The Secretary Of The Navy Controlled-porosity dispenser cathode

Also Published As

Publication number Publication date
JPS5576538A (en) 1980-06-09
DE2947919C2 (enrdf_load_stackoverflow) 1991-06-20
GB2100502B (en) 1983-08-03
GB2043991A (en) 1980-10-08
DE2947919A1 (de) 1980-06-12
GB2043991B (en) 1983-05-11
JPH028413B2 (enrdf_load_stackoverflow) 1990-02-23
GB2100502A (en) 1982-12-22
DE2954658C2 (enrdf_load_stackoverflow) 1991-01-17

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Legal Events

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