FR2726121B1 - Dispositif de chauffage par rayonnement pour cathode a chauffage indirect - Google Patents
Dispositif de chauffage par rayonnement pour cathode a chauffage indirectInfo
- 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
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
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9412608A FR2726121B1 (fr) | 1994-10-21 | 1994-10-21 | Dispositif de chauffage par rayonnement pour cathode a chauffage indirect |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9412608A FR2726121B1 (fr) | 1994-10-21 | 1994-10-21 | Dispositif de chauffage par rayonnement pour cathode a chauffage indirect |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2726121A1 FR2726121A1 (fr) | 1996-04-26 |
FR2726121B1 true FR2726121B1 (fr) | 1996-11-15 |
Family
ID=9468085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9412608A Expired - Fee Related FR2726121B1 (fr) | 1994-10-21 | 1994-10-21 | Dispositif de chauffage par rayonnement pour cathode a chauffage indirect |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2726121B1 (fr) |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1044987B (de) * | 1957-08-27 | 1958-11-27 | Deutsche Elektronik Gmbh | Verfahren zur Herstellung eines aus Graphit bestehenden Heizkoerpers fuer direkt oder indirekt geheizte Kathoden |
DE1565398A1 (de) * | 1965-09-03 | 1970-04-16 | Atomic Energy Of Australia | Heizstab fuer elektrische Widerstandsoefen und unter Verwendung solcher Staebe gebildete Heizeinrichtung |
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 (de) * | 1977-07-21 | 1982-04-01 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Glühkathode und Verfahren zu ihrer Herstellung |
DE2759147C2 (de) * | 1977-12-31 | 1987-01-02 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Glühkathode mit einem Heizer aus pyrolytischem Graphit |
US5015908A (en) * | 1989-01-23 | 1991-05-14 | Varian Associates, Inc. | Fast warm-up cathode for high power vacuum tubes |
WO1991003065A1 (fr) * | 1989-08-18 | 1991-03-07 | Nikolai Fedorovich Osaulenko | Unite de chauffage de cathode pour dispositifs a rayons electroniques |
FR2669771A1 (fr) * | 1990-11-27 | 1992-05-29 | Thomson Tubes Electroniques | Cathode amelioree pour tubes hyperfrequence. |
US5444327A (en) * | 1993-06-30 | 1995-08-22 | Varian Associates, Inc. | Anisotropic pyrolytic graphite heater |
-
1994
- 1994-10-21 FR FR9412608A patent/FR2726121B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2726121A1 (fr) | 1996-04-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20060630 |