NL6403351A - - Google Patents

Info

Publication number
NL6403351A
NL6403351A NL6403351A NL6403351A NL6403351A NL 6403351 A NL6403351 A NL 6403351A NL 6403351 A NL6403351 A NL 6403351A NL 6403351 A NL6403351 A NL 6403351A NL 6403351 A NL6403351 A NL 6403351A
Authority
NL
Netherlands
Application number
NL6403351A
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 filed Critical
Publication of NL6403351A publication Critical patent/NL6403351A/xx

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
NL6403351A 1963-03-26 1964-03-26 NL6403351A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US268107A US3312856A (en) 1963-03-26 1963-03-26 Rhenium supported metallic boride cathode emitters

Publications (1)

Publication Number Publication Date
NL6403351A true NL6403351A (en) 1964-09-28

Family

ID=23021505

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6403351A NL6403351A (en) 1963-03-26 1964-03-26

Country Status (4)

Country Link
US (1) US3312856A (en)
DE (1) DE1234858B (en)
GB (1) GB1041282A (en)
NL (1) NL6403351A (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500106A (en) * 1965-09-10 1970-03-10 Bell & Howell Co Cathode
GB1167157A (en) * 1966-01-08 1969-10-15 Matsushita Electronics Corp Electric Discharge Tube.
US3436584A (en) * 1966-03-15 1969-04-01 Gen Electric Electron emission source with sharply defined emitting area
GB1178052A (en) * 1966-04-20 1970-01-14 Matsushita Electronics Corp A Noiseless Discharge Tube
GB1178051A (en) * 1966-04-20 1970-01-14 Matsushita Electronics Corp Noiseless Discharge Tube
US3462635A (en) * 1966-10-24 1969-08-19 Ibm Holder for highly reactive cathodes of rare-earth borides such as lanthanum hexaboride,the holder provided with a cooling means opposite to the emissive end of the cathode in order to reduce tendency of holder deterioration
US3558966A (en) * 1967-03-01 1971-01-26 Semicon Associates Inc Directly heated dispenser cathode
US3440475A (en) * 1967-04-11 1969-04-22 Lokomotivbau Elektrotech Lanthanum hexaboride cathode system for an electron beam generator
GB1291221A (en) * 1968-07-07 1972-10-04 Smith Kenneth C A Electron probe forming system
US3631291A (en) * 1969-04-30 1971-12-28 Gen Electric Field emission cathode with metallic boride coating
US3668457A (en) * 1969-08-25 1972-06-06 United Aircraft Corp Brazing alloy for bonding thermionic cathode to support
DE2037874B2 (en) * 1970-07-30 1972-12-14 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt METHOD OF MAKING A SUPPLY CATHOD
NL167796C (en) * 1972-05-30 1982-01-18 Philips Nv METHOD FOR MANUFACTURING A LANTHANE HEXABORIDE-ACTIVATED CATHOD FOR AN ELECTRIC DISCHARGE TUBE
JPS4953660U (en) * 1972-08-22 1974-05-11
JPS5249305B2 (en) * 1973-09-05 1977-12-16
US3944866A (en) * 1974-04-08 1976-03-16 Canadian Patents & Development Ltd. Thermionic emitter of lanthanum strontium vanadates
JPS5128475A (en) * 1974-09-04 1976-03-10 Hitachi Ltd MAGUNETORONINKYOKUKOTAI
JPS5736698B2 (en) * 1974-09-13 1982-08-05
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
US4137476A (en) * 1977-05-18 1979-01-30 Denki Kagaku Kogyo Kabushiki Kaisha Thermionic cathode
US4258283A (en) * 1978-08-31 1981-03-24 Balzers Aktiengesellschaft Fur Hochvakuumtechnik Und Dunne Schichten Cathode for electron emission
FR2445605A1 (en) * 1978-12-27 1980-07-25 Thomson Csf DIRECT HEATING CATHODE AND HIGH FREQUENCY ELECTRONIC TUBE COMPRISING SUCH A CATHODE
JPS57196443A (en) * 1981-05-29 1982-12-02 Denki Kagaku Kogyo Kk Manufacture of hot cathode
US4760306A (en) * 1983-06-10 1988-07-26 The United States Of America As Represented By The United States Department Of Energy Electron emitting filaments for electron discharge devices
JP4951477B2 (en) * 2006-12-04 2012-06-13 電気化学工業株式会社 Electron emission source
EP1983546A1 (en) 2007-04-20 2008-10-22 PANalytical B.V. X-ray cathode and tube
DE102010049521B3 (en) 2010-10-25 2012-04-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Device for generating an electron beam

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE340880A (en) * 1926-04-06
US1854970A (en) * 1930-05-20 1932-04-19 Gen Electric Electric lamp and the illuminating body used therein
US2098113A (en) * 1932-02-06 1937-11-02 Spaeth Charles Lamp and method of operating same
DE883935C (en) * 1938-12-02 1953-07-23 Lorenz C Ag Cathode for electron tubes
US2300959A (en) * 1940-01-01 1942-11-03 Gen Electric Cathode for discharge devices
BE481787A (en) * 1940-11-23
US2586768A (en) * 1949-02-24 1952-02-26 Driver Harris Co Vacuum tube electrode element
US2659685A (en) * 1950-03-31 1953-11-17 Gen Electric Boride cathodes
NL80503C (en) * 1950-03-31
US2820920A (en) * 1952-09-17 1958-01-21 Claude Ets Manufacture of coated electrodes

Also Published As

Publication number Publication date
US3312856A (en) 1967-04-04
DE1234858B (en) 1967-02-23
GB1041282A (en) 1966-09-01

Similar Documents

Publication Publication Date Title
AR142945A1 (en)
BE627012A (en)
BE626590A (en)
BE627023A (en)
BE645834A (en)
BE645531A (en)
BE645477A (en)
BE645287A (en)
BE645254A (en)
BE645198A (en)
BE644445A (en)
BE644183A (en)
BE643938A (en)
BE643616A (en)
BE643264A (en)
BE643039A (en)
BE642907A (en)
BE625880A (en)
BE642051A (en)
BE642048A (en)
BE638477A (en)
BE637684A (en)
BE636308A (en)
BE634376A (en)
BE633891A (en)