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FR2726121B1 - RADIATION HEATING DEVICE FOR INDIRECT HEATING CATHODE - Google Patents

RADIATION HEATING DEVICE FOR INDIRECT HEATING CATHODE

Info

Publication number
FR2726121B1
FR2726121B1 FR9412608A FR9412608A FR2726121B1 FR 2726121 B1 FR2726121 B1 FR 2726121B1 FR 9412608 A FR9412608 A FR 9412608A FR 9412608 A FR9412608 A FR 9412608A FR 2726121 B1 FR2726121 B1 FR 2726121B1
Authority
FR
France
Prior art keywords
cathode
radiation
indirect
heating
heating device
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 - Fee Related
Application number
FR9412608A
Other languages
French (fr)
Other versions
FR2726121A1 (en
Inventor
Christophe Foissard
Andre Gabioud
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.)
Thales Electron Devices SA
Original Assignee
Thomson Tubes Electroniques
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 Thomson Tubes Electroniques filed Critical Thomson Tubes Electroniques
Priority to FR9412608A priority Critical patent/FR2726121B1/en
Publication of FR2726121A1 publication Critical patent/FR2726121A1/en
Application granted granted Critical
Publication of FR2726121B1 publication Critical patent/FR2726121B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/04—Cathodes
    • 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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/22—Heaters
FR9412608A 1994-10-21 1994-10-21 RADIATION HEATING DEVICE FOR INDIRECT HEATING CATHODE Expired - Fee Related FR2726121B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9412608A FR2726121B1 (en) 1994-10-21 1994-10-21 RADIATION HEATING DEVICE FOR INDIRECT HEATING CATHODE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9412608A FR2726121B1 (en) 1994-10-21 1994-10-21 RADIATION HEATING DEVICE FOR INDIRECT HEATING CATHODE

Publications (2)

Publication Number Publication Date
FR2726121A1 FR2726121A1 (en) 1996-04-26
FR2726121B1 true FR2726121B1 (en) 1996-11-15

Family

ID=9468085

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9412608A Expired - Fee Related FR2726121B1 (en) 1994-10-21 1994-10-21 RADIATION HEATING DEVICE FOR INDIRECT HEATING CATHODE

Country Status (1)

Country Link
FR (1) FR2726121B1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1044987B (en) * 1957-08-27 1958-11-27 Deutsche Elektronik Gmbh Process for the production of a graphite heater for directly or indirectly heated cathodes
GB1123606A (en) * 1965-09-03 1968-08-14 Atomic Energy Of Australia Improvements in electric resistance furnaces
US3411123A (en) * 1966-05-10 1968-11-12 Gen Electric Pyrolytic graphite electrical resistance element
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
DE2732960C2 (en) * 1977-07-21 1982-04-01 Philips Patentverwaltung Gmbh, 2000 Hamburg Hot cathode and process for its manufacture
DE2759147C2 (en) * 1977-12-31 1987-01-02 Philips Patentverwaltung Gmbh, 2000 Hamburg Hot cathode with a heater made of pyrolytic graphite
US5015908A (en) * 1989-01-23 1991-05-14 Varian Associates, Inc. Fast warm-up cathode for high power vacuum tubes
WO1991003065A1 (en) * 1989-08-18 1991-03-07 Nikolai Fedorovich Osaulenko Cathode heating unit for electron-ray devices
FR2669771A1 (en) * 1990-11-27 1992-05-29 Thomson Tubes Electroniques IMPROVED CATHODE FOR MICROWAVE TUBES.
US5444327A (en) * 1993-06-30 1995-08-22 Varian Associates, Inc. Anisotropic pyrolytic graphite heater

Also Published As

Publication number Publication date
FR2726121A1 (en) 1996-04-26

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20060630