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FR2388405A1 - Fabrication d'une cathode pour une source d'electrons - Google Patents

Fabrication d'une cathode pour une source d'electrons

Info

Publication number
FR2388405A1
FR2388405A1 FR7811187A FR7811187A FR2388405A1 FR 2388405 A1 FR2388405 A1 FR 2388405A1 FR 7811187 A FR7811187 A FR 7811187A FR 7811187 A FR7811187 A FR 7811187A FR 2388405 A1 FR2388405 A1 FR 2388405A1
Authority
FR
France
Prior art keywords
cathode
filament
emitting end
thermosetting resin
electron source
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.)
Granted
Application number
FR7811187A
Other languages
English (en)
Other versions
FR2388405B1 (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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of FR2388405A1 publication Critical patent/FR2388405A1/fr
Application granted granted Critical
Publication of FR2388405B1 publication Critical patent/FR2388405B1/fr
Granted 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
    • H01J1/15—Cathodes heated directly by an electric current
    • 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
    • H01J1/30—Cold cathodes, e.g. field-emissive cathode
    • H01J1/304—Field-emissive cathodes

Landscapes

  • Cold Cathode And The Manufacture (AREA)
  • Solid Thermionic Cathode (AREA)
  • Ceramic Products (AREA)

Abstract

Cathode pour une source d'électrons comprenant une extrémité en matière émettant des électrons, un filament qui maintient l'extrémité émettrice, et un agglomérant qui lie l'extrémité émettrice au filament, le filament et l'agglomérant étant faits en carbone vitreux. La cathode selon la présente invention est produite en utilisant une résine thermo-durcissable de forme prédéterminée comme matériau de départ du filament, en fixant l'extrémité émettrice à une position prédéterminée de la résine thermo-durcissable avec un agent adhésif en résine thermo-durcissable brute, et en chauffant l'assemblage résultant dans une atmosphère non oxydante pour carboniser les parties résineuses. Cette cathode est de construction très simple. En outre, l'adhésion entre le filament et l'extrémité émettrice est excellente, et l'extrémité émettrice peut être chauffée à des températures élevées supérieures à 2000 degrés C en provoquant des courants dans cette cathode.
FR7811187A 1977-04-18 1978-04-17 Fabrication d'une cathode pour une source d'electrons Granted FR2388405A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4354877A JPS53128971A (en) 1977-04-18 1977-04-18 Manufacture of electron radiation cathode

Publications (2)

Publication Number Publication Date
FR2388405A1 true FR2388405A1 (fr) 1978-11-17
FR2388405B1 FR2388405B1 (fr) 1980-10-31

Family

ID=12666799

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7811187A Granted FR2388405A1 (fr) 1977-04-18 1978-04-17 Fabrication d'une cathode pour une source d'electrons

Country Status (6)

Country Link
US (1) US4193013A (fr)
JP (1) JPS53128971A (fr)
DE (1) DE2816832C2 (fr)
FR (1) FR2388405A1 (fr)
GB (1) GB1591149A (fr)
NL (1) NL7804024A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402297A1 (fr) * 1977-09-02 1979-03-30 Balzers Hochvakuum Cathode a emission electronique
EP0030465A1 (fr) * 1979-12-05 1981-06-17 Kabushiki Kaisha Toshiba Dispositif d'exposition par faisceau d'électrons
FR2779570A1 (fr) * 1998-06-05 1999-12-10 Futaba Denshi Kogyo Kk Cathode a emission de champ et procede de fabrication associe

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5453855A (en) * 1977-10-07 1979-04-27 Hitachi Ltd Electron radiating cathode structure
JPS6023456B2 (ja) * 1978-11-01 1985-06-07 電気化学工業株式会社 熱電子陰極装置
JPS55165542A (en) * 1979-06-11 1980-12-24 Hitachi Ltd Single crystal needle-like hot cathode
JPS5618336A (en) * 1979-07-23 1981-02-21 Hitachi Ltd Electron emission cathode
US4288717A (en) * 1979-11-06 1981-09-08 Denki Kagaku Kogyo Kabushiki Kaisha Thermionic cathode apparatus
JPS57132632A (en) * 1981-02-09 1982-08-17 Hitachi Ltd Ion source
SU1149329A1 (ru) * 1981-02-13 1985-04-07 Организация П/Я Х-5263 Сетчатый электрод дл электронного прибора и способ его изготовлени
DE3120454A1 (de) * 1981-05-22 1982-12-09 geb. Vlasova Margarita Sergeevna Moskva Čupina Feldemissionskatode
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
US4740705A (en) * 1986-08-11 1988-04-26 Electron Beam Memories Axially compact field emission cathode assembly
US4886971A (en) * 1987-03-13 1989-12-12 Mitsubishi Denki Kabushiki Kaisha Ion beam irradiating apparatus including ion neutralizer
WO1991003831A1 (fr) * 1989-08-29 1991-03-21 Olgerd Ivanovich Babich Dispositif de chauffage de cathode pour tube a rayons electroniques
JP2783927B2 (ja) * 1991-11-29 1998-08-06 三菱鉛筆株式会社 電極用炭素材料およびその製造方法
US5608283A (en) * 1994-06-29 1997-03-04 Candescent Technologies Corporation Electron-emitting devices utilizing electron-emissive particles which typically contain carbon
US6356014B2 (en) 1997-03-27 2002-03-12 Candescent Technologies Corporation Electron emitters coated with carbon containing layer
WO2009044564A1 (fr) * 2007-10-05 2009-04-09 Denki Kagaku Kogyo Kabushiki Kaisha Source d'électrons et dispositif à faisceau d'électrons
DE102011013262A1 (de) 2011-03-07 2012-09-13 Adlantis Dortmund Gmbh Ionisationsquelle und Nachweisgerät für Spurengase
US9240301B1 (en) * 2012-03-27 2016-01-19 Applied Physics Technologies, Inc. Thermal-field type electron source composed of transition metal carbide material with artificial facet
US10083812B1 (en) 2015-12-04 2018-09-25 Applied Physics Technologies, Inc. Thermionic-enhanced field emission electron source composed of transition metal carbide material with sharp emitter end-form

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900281A (en) * 1953-07-20 1959-08-18 Gen Electric Method of bonding metal borides to graphite
GB820569A (en) * 1955-03-08 1959-09-23 Gen Electric Method of bonding graphite, silicon-carbide or boron-carbide to molybdenum or tungsten
FR2319967A1 (fr) * 1975-06-27 1977-02-25 Hitachi Ltd Cathode a emission de champ et son procede de realisation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3532923A (en) * 1969-03-17 1970-10-06 Ibm Pyrolytic graphite support for lanthanum hexaboride cathode emitter
JPS5530648B2 (fr) * 1974-08-26 1980-08-12
JPS5718655B2 (fr) * 1974-11-12 1982-04-17
JPS5222468A (en) * 1975-08-13 1977-02-19 Akashi Seisakusho Co Ltd Method of manufacturing filaments for electron guns
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900281A (en) * 1953-07-20 1959-08-18 Gen Electric Method of bonding metal borides to graphite
GB820569A (en) * 1955-03-08 1959-09-23 Gen Electric Method of bonding graphite, silicon-carbide or boron-carbide to molybdenum or tungsten
FR2319967A1 (fr) * 1975-06-27 1977-02-25 Hitachi Ltd Cathode a emission de champ et son procede de realisation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402297A1 (fr) * 1977-09-02 1979-03-30 Balzers Hochvakuum Cathode a emission electronique
EP0030465A1 (fr) * 1979-12-05 1981-06-17 Kabushiki Kaisha Toshiba Dispositif d'exposition par faisceau d'électrons
FR2779570A1 (fr) * 1998-06-05 1999-12-10 Futaba Denshi Kogyo Kk Cathode a emission de champ et procede de fabrication associe

Also Published As

Publication number Publication date
FR2388405B1 (fr) 1980-10-31
DE2816832C2 (de) 1983-08-04
US4193013A (en) 1980-03-11
NL7804024A (nl) 1978-10-20
JPS5721222B2 (fr) 1982-05-06
JPS53128971A (en) 1978-11-10
GB1591149A (en) 1981-06-17
DE2816832A1 (de) 1978-10-19

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