JPS48100086A - - Google Patents
Info
- Publication number
- JPS48100086A JPS48100086A JP48021395A JP2139573A JPS48100086A JP S48100086 A JPS48100086 A JP S48100086A JP 48021395 A JP48021395 A JP 48021395A JP 2139573 A JP2139573 A JP 2139573A JP S48100086 A JPS48100086 A JP S48100086A
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/042—Manufacture, activation of the emissive part
- H01J9/045—Activation of assembled cathode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/06—Cathodes
- H01J35/064—Details of the emitter, e.g. material or structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/06—Cathodes
- H01J35/066—Details of electron optical components, e.g. cathode cups
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/20—Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/24—Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof
- H01J35/26—Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof by rotation of the anode or anticathode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2235/00—X-ray tubes
- H01J2235/06—Cathode assembly
- H01J2235/068—Multi-cathode assembly
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Solid Thermionic Cathode (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00228951A US3846006A (en) | 1972-02-24 | 1972-02-24 | Method of manufacturing of x-ray tube having thoriated tungsten filament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS48100086A true JPS48100086A (fr) | 1973-12-18 |
Family
ID=22859223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48021395A Pending JPS48100086A (fr) | 1972-02-24 | 1973-02-23 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3846006A (fr) |
| JP (1) | JPS48100086A (fr) |
| CA (1) | CA957416A (fr) |
| DE (1) | DE2259526A1 (fr) |
| FR (1) | FR2172971B3 (fr) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4501566A (en) * | 1983-09-19 | 1985-02-26 | Technicare Corporation | Method for assembling a high vacuum rotating anode X-ray tube |
| US4838259A (en) * | 1986-01-27 | 1989-06-13 | Advanced Pulmonary Technologies, Inc. | Multi-frequency jet ventilation technique and apparatus |
| US7327829B2 (en) * | 2004-04-20 | 2008-02-05 | Varian Medical Systems Technologies, Inc. | Cathode assembly |
| US7795792B2 (en) * | 2006-02-08 | 2010-09-14 | Varian Medical Systems, Inc. | Cathode structures for X-ray tubes |
| US8559599B2 (en) * | 2010-02-04 | 2013-10-15 | Energy Resources International Co., Ltd. | X-ray generation device and cathode thereof |
| US8509385B2 (en) | 2010-10-05 | 2013-08-13 | General Electric Company | X-ray tube with improved vacuum processing |
| US9443691B2 (en) | 2013-12-30 | 2016-09-13 | General Electric Company | Electron emission surface for X-ray generation |
| EP3539144A4 (fr) * | 2017-12-31 | 2020-01-22 | Shanghai United Imaging Healthcare Co., Ltd. | Dispositif d'émission de rayonnement |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1616431A (en) * | 1924-09-20 | 1927-02-01 | Westinghouse Lamp Co | Treatment of vacuum devices to remove occluded gases therefrom |
| US2403745A (en) * | 1943-12-21 | 1946-07-09 | Eitel Mccullough Inc | Apparatus and method for making tubes |
| US2591474A (en) * | 1950-05-26 | 1952-04-01 | Raytheon Mfg Co | Cold cathode discharge device |
| FR1489755A (fr) * | 1966-04-18 | 1967-07-28 | Pat & Visseaux Claude | Procédé pour le traitement carburant d'une électrode à l'oxyde de thorium |
-
1972
- 1972-02-24 US US00228951A patent/US3846006A/en not_active Expired - Lifetime
- 1972-10-17 CA CA154,079A patent/CA957416A/en not_active Expired
- 1972-12-05 DE DE2259526A patent/DE2259526A1/de active Pending
-
1973
- 1973-01-08 FR FR7300484A patent/FR2172971B3/fr not_active Expired
- 1973-02-23 JP JP48021395A patent/JPS48100086A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CA957416A (en) | 1974-11-05 |
| FR2172971A1 (fr) | 1973-10-05 |
| FR2172971B3 (fr) | 1976-01-09 |
| US3846006A (en) | 1974-11-05 |
| DE2259526A1 (de) | 1973-08-30 |