FR66813E - Thermionic or secondary emission cathodes - Google Patents

Thermionic or secondary emission cathodes

Info

Publication number
FR66813E
FR66813E FR66813DA FR66813E FR 66813 E FR66813 E FR 66813E FR 66813D A FR66813D A FR 66813DA FR 66813 E FR66813 E FR 66813E
Authority
FR
France
Prior art keywords
thermionic
secondary emission
emission cathodes
cathodes
emission
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
Other languages
French (fr)
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Application granted granted Critical
Publication of FR66813E publication Critical patent/FR66813E/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
    • H01J1/32—Secondary-electron-emitting electrodes
    • 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
FR66813D 1953-08-10 1954-08-05 Thermionic or secondary emission cathodes Expired FR66813E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2203753A GB741020A (en) 1953-08-10 1953-08-10 Improvements in or relating to thermionic and secondary emission cathodes

Publications (1)

Publication Number Publication Date
FR66813E true FR66813E (en) 1957-09-10

Family

ID=10172879

Family Applications (1)

Application Number Title Priority Date Filing Date
FR66813D Expired FR66813E (en) 1953-08-10 1954-08-05 Thermionic or secondary emission cathodes

Country Status (2)

Country Link
FR (1) FR66813E (en)
GB (1) GB741020A (en)

Also Published As

Publication number Publication date
GB741020A (en) 1955-11-23

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