CA1028491A - Thermionic emitter of lanthanum strontium vanadates - Google Patents

Thermionic emitter of lanthanum strontium vanadates

Info

Publication number
CA1028491A
CA1028491A CA221,766A CA221766A CA1028491A CA 1028491 A CA1028491 A CA 1028491A CA 221766 A CA221766 A CA 221766A CA 1028491 A CA1028491 A CA 1028491A
Authority
CA
Canada
Prior art keywords
vanadates
lanthanum strontium
thermionic emitter
thermionic
emitter
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
CA221,766A
Other languages
French (fr)
Inventor
Michael Sayer
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.)
Canadian Patents and Development Ltd
Original Assignee
Canadian Patents and Development Ltd
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 Canadian Patents and Development Ltd filed Critical Canadian Patents and Development Ltd
Application granted granted Critical
Publication of CA1028491A publication Critical patent/CA1028491A/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
    • H01J1/14—Solid thermionic cathodes characterised by the material
    • H01J1/144—Solid thermionic cathodes characterised by the material with other metal oxides as an emissive material
CA221,766A 1974-04-08 1975-03-11 Thermionic emitter of lanthanum strontium vanadates Expired CA1028491A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/458,849 US3944866A (en) 1974-04-08 1974-04-08 Thermionic emitter of lanthanum strontium vanadates

Publications (1)

Publication Number Publication Date
CA1028491A true CA1028491A (en) 1978-03-28

Family

ID=23822334

Family Applications (1)

Application Number Title Priority Date Filing Date
CA221,766A Expired CA1028491A (en) 1974-04-08 1975-03-11 Thermionic emitter of lanthanum strontium vanadates

Country Status (5)

Country Link
US (1) US3944866A (en)
JP (1) JPS5198947A (en)
CA (1) CA1028491A (en)
DE (1) DE2511340A1 (en)
GB (1) GB1461043A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055780A (en) * 1975-04-10 1977-10-25 National Institute For Researches In Inorganic Materials Thermionic emission cathode having a tip of a single crystal of lanthanum hexaboride
US4054946A (en) * 1976-09-28 1977-10-18 Bell Telephone Laboratories, Incorporated Electron source of a single crystal of lanthanum hexaboride emitting surface of (110) crystal plane
DE3003250C2 (en) * 1980-01-30 1982-09-16 Klöckner-Humboldt-Deutz AG, 5000 Köln Process for separating solids from phosphoric acid
GB2192751B (en) * 1986-07-14 1991-02-13 Denki Kagaku Kogyo Kk Method of making a thermionic cathode structure.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE502232A (en) * 1950-03-31
US3312856A (en) * 1963-03-26 1967-04-04 Gen Electric Rhenium supported metallic boride cathode emitters
US3440475A (en) * 1967-04-11 1969-04-22 Lokomotivbau Elektrotech Lanthanum hexaboride cathode system for an electron beam generator
US3630770A (en) * 1969-04-30 1971-12-28 Gen Electric Method for fabricating lanthanum boride cathodes

Also Published As

Publication number Publication date
GB1461043A (en) 1977-01-13
DE2511340A1 (en) 1975-10-16
JPS5198947A (en) 1976-08-31
US3944866A (en) 1976-03-16

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