CH301197A - Cathode. - Google Patents

Cathode.

Info

Publication number
CH301197A
CH301197A CH301197DA CH301197A CH 301197 A CH301197 A CH 301197A CH 301197D A CH301197D A CH 301197DA CH 301197 A CH301197 A CH 301197A
Authority
CH
Switzerland
Prior art keywords
cathode
Prior art date
Application number
Other languages
German (de)
Inventor
Company General Electric
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of CH301197A publication Critical patent/CH301197A/en

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
    • H01J1/148—Solid thermionic cathodes characterised by the material with compounds having metallic conductive properties, e.g. lanthanum boride, as an emissive material
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/02—Electrodes; Connections thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H01J17/06—Cathodes
    • H01J17/066—Cold cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
    • H01J2893/0065—Electrode systems
    • H01J2893/0066—Construction, material, support, protection and temperature regulation of electrodes; Electrode cups
CH301197D 1950-03-31 1951-03-31 Cathode. CH301197A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US153212A US2639399A (en) 1950-03-31 1950-03-31 Electron emitter

Publications (1)

Publication Number Publication Date
CH301197A true CH301197A (en) 1954-08-31

Family

ID=22546234

Family Applications (1)

Application Number Title Priority Date Filing Date
CH301197D CH301197A (en) 1950-03-31 1951-03-31 Cathode.

Country Status (6)

Country Link
US (1) US2639399A (en)
BE (1) BE502232A (en)
CH (1) CH301197A (en)
DE (1) DE856666C (en)
GB (2) GB678258A (en)
NL (1) NL80503C (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744073A (en) * 1952-11-22 1956-05-01 Battelle Development Corp Thermionic emitter materials
DE971413C (en) * 1953-10-02 1959-01-22 Siemens Ag Device for crucible zone melting
US3312856A (en) * 1963-03-26 1967-04-04 Gen Electric Rhenium supported metallic boride cathode emitters
US3505553A (en) * 1966-05-12 1970-04-07 Philips Corp Radio-interference-free low-pressure mercury-vapor lamp
US3440475A (en) * 1967-04-11 1969-04-22 Lokomotivbau Elektrotech Lanthanum hexaboride cathode system for an electron beam generator
US3944866A (en) * 1974-04-08 1976-03-16 Canadian Patents & Development Ltd. Thermionic emitter of lanthanum strontium vanadates
JPS5451776A (en) * 1977-10-03 1979-04-23 Nippon Hoso Kyokai <Nhk> Gas discharge display panel
US4260525A (en) * 1978-11-27 1981-04-07 Rca Corporation Single-crystal hexaborides and method of preparation
FR2445605A1 (en) * 1978-12-27 1980-07-25 Thomson Csf DIRECT HEATING CATHODE AND HIGH FREQUENCY ELECTRONIC TUBE COMPRISING SUCH A CATHODE
DE4305558A1 (en) * 1993-02-24 1994-08-25 Asea Brown Boveri Process for the manufacture of wires which are especially suitable for cathodes of electron tubes
US6025038A (en) * 1998-08-26 2000-02-15 Board Of Regents Of The University Of Nebraska Method for depositing rare-earth boride onto a substrate
US6077617A (en) * 1998-08-26 2000-06-20 Board Of Regents Of The University Of Nebraska Rare-earth boride thin film system
US8501136B2 (en) * 2006-02-06 2013-08-06 The University Of North Carolina At Chapel Hill Synthesis and processing of rare-earth boride nanowires as electron emitters
DE102011013262A1 (en) 2011-03-07 2012-09-13 Adlantis Dortmund Gmbh Electron-ionization source has photoelectrons that are generated from atmospheric-stable layer by ultra-violet source and are actuated with distance of acceleration in dimension of average free path length of gas

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1023485A (en) * 1908-11-20 1912-04-16 Orlando M Thowless Illuminant for electrical incandescent lamps.
US2117636A (en) * 1934-03-24 1938-05-17 Gerald B Tjoflat Thermionic electrode
US2501089A (en) * 1945-11-29 1950-03-21 Martin A Pomerantz Thermionic electron emitter
US2502331A (en) * 1948-12-21 1950-03-28 Rca Corp Geiger-muller counter for radioactive emission

Also Published As

Publication number Publication date
NL80503C (en)
BE502232A (en)
DE856666C (en) 1952-11-24
GB683940A (en) 1952-12-10
GB678258A (en) 1952-08-27
US2639399A (en) 1953-05-19

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