FR2440610A1 - THERMIONIC CATHODE ASSEMBLY - Google Patents

THERMIONIC CATHODE ASSEMBLY

Info

Publication number
FR2440610A1
FR2440610A1 FR7926977A FR7926977A FR2440610A1 FR 2440610 A1 FR2440610 A1 FR 2440610A1 FR 7926977 A FR7926977 A FR 7926977A FR 7926977 A FR7926977 A FR 7926977A FR 2440610 A1 FR2440610 A1 FR 2440610A1
Authority
FR
France
Prior art keywords
point
elements
supporting
cathode assembly
contact
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
FR7926977A
Other languages
French (fr)
Other versions
FR2440610B1 (en
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.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
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 Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Publication of FR2440610A1 publication Critical patent/FR2440610A1/en
Application granted granted Critical
Publication of FR2440610B1 publication Critical patent/FR2440610B1/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
    • H01J1/18—Supports; Vibration-damping arrangements

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Electron Sources, Ion Sources (AREA)

Abstract

CATHODE THERMIONIQUE. ELLE COMPORTE UNE POINTE D'EMISSION D'ELECTRONS 1, DES ELEMENTS SUPPORTS DE POINTE 2, 3 EN MATIERE CARBONEE EN CONTACT AVEC LES DEUX COTES DE LA POINTE, RESPECTIVEMENT, ET SUPPORTANT CETTE POINTE, ET DES ELEMENTS ELECTROCONDUCTEURS ELASTIQUES 4, 5 FIXES SUR UNE BASE 10, QUI SONT AMENES EN CONTACT DE COMPRESSION AVEC LES SURFACES EXTERIEURES DES ELEMENTS CHAUFFANT SUPPORTS DE POINTE ET AMENENT LE COURANT ELECTRIQUE. CES ELEMENTS SUPPORTS DE POINTE SONT UN ENSEMBLE OBTENU EN DECOUPANT UN PRODUIT CARBONE, OBTENU EN COMPRIMANT A CHAUD UNE PIECE MOULEE DE RESINE SYNTHETIQUE QUI NE FOND PAS LORSQU'ELLE EST CHAUFFEE, DE FACON A FORMER UNE PAIRE DE PLANS PARALLELES A LA DIRECTION DE COMPRESSION, POLIS ENSUITE PAR ABRASION.THERMIONIC CATHOD. IT INCLUDES AN ELECTRON EMISSION POINT 1, SUPPORTING ELEMENTS OF POINT 2, 3 IN CARBON MATERIAL IN CONTACT WITH BOTH SIDES OF THE POINT, RESPECTIVELY, AND SUPPORTING THIS POINT, AND ELASTIC ELECTROCONDUCTOR ELEMENTS 4, 5 FIXED ON A BASE 10, WHICH ARE BROUGHT INTO COMPRESSIVE CONTACT WITH THE EXTERIOR SURFACES OF THE HEATING ELEMENTS, SUPPORTING POINTS AND BRING THE ELECTRIC CURRENT. THESE STATE-OF-THE-ART SUPPORT ELEMENTS ARE AN ASSEMBLY OBTAINED BY CUTTING A CARBON PRODUCT, OBTAINED BY HOT COMPRESSING A MOLDED PART OF SYNTHETIC RESIN WHICH DOES NOT MELT WHEN HEATED, SO AS TO FORM A PAIR OF PLANS PARALLELED TO DIRECTION , THEN POLISHED BY ABRASION.

FR7926977A 1978-11-01 1979-10-31 THERMIONIC CATHODE ASSEMBLY Granted FR2440610A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53133795A JPS6023456B2 (en) 1978-11-01 1978-11-01 Thermionic cathode device

Publications (2)

Publication Number Publication Date
FR2440610A1 true FR2440610A1 (en) 1980-05-30
FR2440610B1 FR2440610B1 (en) 1984-03-16

Family

ID=15113190

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7926977A Granted FR2440610A1 (en) 1978-11-01 1979-10-31 THERMIONIC CATHODE ASSEMBLY

Country Status (4)

Country Link
JP (1) JPS6023456B2 (en)
DE (1) DE2944083A1 (en)
FR (1) FR2440610A1 (en)
GB (1) GB2038541B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58147945A (en) * 1982-02-25 1983-09-02 Toshiba Corp How to use electron gun
JP4951477B2 (en) 2006-12-04 2012-06-13 電気化学工業株式会社 Electron emission source

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402297A1 (en) * 1977-09-02 1979-03-30 Balzers Hochvakuum ELECTRONIC EMISSION CATHODE

Family Cites Families (4)

* 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
JPS5277661A (en) * 1975-12-24 1977-06-30 Jeol Ltd Electron gun
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
JPS53128971A (en) * 1977-04-18 1978-11-10 Hitachi Ltd Manufacture of electron radiation cathode

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402297A1 (en) * 1977-09-02 1979-03-30 Balzers Hochvakuum ELECTRONIC EMISSION CATHODE

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXRV/70 *

Also Published As

Publication number Publication date
DE2944083A1 (en) 1980-05-14
DE2944083C2 (en) 1987-09-17
GB2038541A (en) 1980-07-23
FR2440610B1 (en) 1984-03-16
JPS6023456B2 (en) 1985-06-07
JPS5562639A (en) 1980-05-12
GB2038541B (en) 1983-03-23

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Legal Events

Date Code Title Description
ST Notification of lapse
ST Notification of lapse