GB716619A - Electron discharge device - Google Patents

Electron discharge device

Info

Publication number
GB716619A
GB716619A GB1948851A GB1948851A GB716619A GB 716619 A GB716619 A GB 716619A GB 1948851 A GB1948851 A GB 1948851A GB 1948851 A GB1948851 A GB 1948851A GB 716619 A GB716619 A GB 716619A
Authority
GB
United Kingdom
Prior art keywords
per cent
discharge device
electron discharge
oxide
caesium
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
GB1948851A
Inventor
Stanley Warren Lefco Urt
Robert Mayer
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products 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
Priority to US36326A priority Critical patent/US2698397A/en
Application filed by Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Priority to GB1948851A priority patent/GB716619A/en
Publication of GB716619A publication Critical patent/GB716619A/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
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/02—Tubes in which one or a few electrodes are secondary-electron emitting electrodes

Landscapes

  • Powder Metallurgy (AREA)

Abstract

A secondary emitting electrode is of a nickel iron chromium alloy with a sensitized surface formed thereon. The alloy to be used is preferably that described in Specification 647,255. containing 3-45 per cent. nickel, 3-15 per cent. chromium, and 0.1-2 per cent. metals of the group consisting of aluminium, zirconium and calcium. The electrode may be sensitized with barium oxide, caesium oxide or caesium silver oxide.
GB1948851A 1948-07-01 1951-08-17 Electron discharge device Expired GB716619A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US36326A US2698397A (en) 1948-07-01 1948-07-01 Electron discharge device
GB1948851A GB716619A (en) 1951-08-17 1951-08-17 Electron discharge device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1948851A GB716619A (en) 1951-08-17 1951-08-17 Electron discharge device

Publications (1)

Publication Number Publication Date
GB716619A true GB716619A (en) 1954-10-13

Family

ID=10130191

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1948851A Expired GB716619A (en) 1948-07-01 1951-08-17 Electron discharge device

Country Status (1)

Country Link
GB (1) GB716619A (en)

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