FR1286724A - Cathode thermo-émissive - Google Patents

Cathode thermo-émissive

Info

Publication number
FR1286724A
FR1286724A FR850235A FR850235A FR1286724A FR 1286724 A FR1286724 A FR 1286724A FR 850235 A FR850235 A FR 850235A FR 850235 A FR850235 A FR 850235A FR 1286724 A FR1286724 A FR 1286724A
Authority
FR
France
Prior art keywords
thermo
emissive cathode
emissive
cathode
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
FR850235A
Other languages
English (en)
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.)
GE Healthcare UK Ltd
Plessey Co Ltd
Original Assignee
GE Healthcare UK Ltd
Plessey Co 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 GE Healthcare UK Ltd, Plessey Co Ltd filed Critical GE Healthcare UK Ltd
Priority to FR850235A priority Critical patent/FR1286724A/fr
Application granted granted Critical
Publication of FR1286724A publication Critical patent/FR1286724A/fr
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
    • H01J1/24—Insulating layer or body located between heater and emissive material
    • 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
    • H01J1/22—Heaters
FR850235A 1961-01-20 1961-01-20 Cathode thermo-émissive Expired FR1286724A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR850235A FR1286724A (fr) 1961-01-20 1961-01-20 Cathode thermo-émissive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR850235A FR1286724A (fr) 1961-01-20 1961-01-20 Cathode thermo-émissive

Publications (1)

Publication Number Publication Date
FR1286724A true FR1286724A (fr) 1962-03-09

Family

ID=8747106

Family Applications (1)

Application Number Title Priority Date Filing Date
FR850235A Expired FR1286724A (fr) 1961-01-20 1961-01-20 Cathode thermo-émissive

Country Status (1)

Country Link
FR (1) FR1286724A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3351801A (en) * 1965-02-16 1967-11-07 John F Richter Cathode cylinder having a heater member supported by a plurality of flexible metal bands

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3351801A (en) * 1965-02-16 1967-11-07 John F Richter Cathode cylinder having a heater member supported by a plurality of flexible metal bands

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