DE2832027C3 - Kathode für Elektronenemission - Google Patents
Kathode für ElektronenemissionInfo
- Publication number
- DE2832027C3 DE2832027C3 DE19782832027 DE2832027A DE2832027C3 DE 2832027 C3 DE2832027 C3 DE 2832027C3 DE 19782832027 DE19782832027 DE 19782832027 DE 2832027 A DE2832027 A DE 2832027A DE 2832027 C3 DE2832027 C3 DE 2832027C3
- Authority
- DE
- Germany
- Prior art keywords
- emitter
- lab
- auxiliary body
- heating wire
- cathode
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims 13
- 239000000463 material Substances 0.000 claims 6
- 238000006243 chemical reaction Methods 0.000 claims 4
- 239000013078 crystal Substances 0.000 claims 3
- 229910052751 metal Inorganic materials 0.000 claims 3
- 239000002184 metal Substances 0.000 claims 3
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 claims 3
- 229910003468 tantalcarbide Inorganic materials 0.000 claims 3
- 230000007797 corrosion Effects 0.000 claims 2
- 238000005260 corrosion Methods 0.000 claims 2
- 238000010894 electron beam technology Methods 0.000 claims 2
- 150000001247 metal acetylides Chemical class 0.000 claims 2
- 150000004767 nitrides Chemical class 0.000 claims 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 239000004568 cement Substances 0.000 claims 1
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000000354 decomposition reaction Methods 0.000 claims 1
- 229910002804 graphite Inorganic materials 0.000 claims 1
- 239000010439 graphite Substances 0.000 claims 1
- 229910052746 lanthanum Inorganic materials 0.000 claims 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 229910052702 rhenium Inorganic materials 0.000 claims 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 claims 1
- 239000007858 starting material Substances 0.000 claims 1
- 229910052715 tantalum Inorganic materials 0.000 claims 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims 1
- 229910003470 tongbaite Inorganic materials 0.000 claims 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims 1
- 229910052721 tungsten Inorganic materials 0.000 claims 1
- 239000010937 tungsten Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
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
- H01J1/14—Solid thermionic cathodes characterised by the material
- H01J1/148—Solid thermionic cathodes characterised by the material with compounds having metallic conductive properties, e.g. lanthanum boride, as an emissive material
-
- 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
Landscapes
- Solid Thermionic Cathode (AREA)
- Electron Sources, Ion Sources (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1066577A CH617793A5 (US07922777-20110412-C00004.png) | 1977-09-02 | 1977-09-02 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2832027A1 DE2832027A1 (de) | 1979-03-15 |
| DE2832027B2 DE2832027B2 (de) | 1981-07-09 |
| DE2832027C3 true DE2832027C3 (de) | 1987-05-07 |
Family
ID=4365548
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19787821817 Expired DE7821817U1 (de) | 1977-09-02 | 1978-07-21 | Kathode für Elektronenemission |
| DE19782832027 Expired DE2832027C3 (de) | 1977-09-02 | 1978-07-21 | Kathode für Elektronenemission |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19787821817 Expired DE7821817U1 (de) | 1977-09-02 | 1978-07-21 | Kathode für Elektronenemission |
Country Status (5)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| FR2445605A1 (fr) * | 1978-12-27 | 1980-07-25 | Thomson Csf | Cathode a chauffage direct et tube electronique haute frequence comportant une telle cathode |
| 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 |
| CH672860A5 (US07922777-20110412-C00004.png) * | 1986-09-29 | 1989-12-29 | Balzers Hochvakuum | |
| JP6636472B2 (ja) * | 2017-02-28 | 2020-01-29 | 株式会社日立ハイテクノロジーズ | 電子源およびそれを用いた電子線装置 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1061633A (fr) * | 1951-03-28 | 1954-04-14 | Thomson Houston Comp Francaise | Substances à pouvoir émissif élevé |
| GB1045396A (en) * | 1965-07-23 | 1966-10-12 | Standard Telephones Cables Ltd | Thermionic cathodes |
| GB1210007A (en) * | 1968-07-05 | 1970-10-28 | Mullard Ltd | Cathode |
| US3532923A (en) * | 1969-03-17 | 1970-10-06 | Ibm | Pyrolytic graphite support for lanthanum hexaboride cathode emitter |
| US3803677A (en) * | 1972-04-28 | 1974-04-16 | Air Liquide | Method for making cathodes for electron guns |
| JPS607335B2 (ja) * | 1974-11-29 | 1985-02-23 | カナデイアン、パテンツ、アンド、デイベラツプメント、リミテツド | 熱電子放射陰極 |
| JPS53128971A (en) * | 1977-04-18 | 1978-11-10 | Hitachi Ltd | Manufacture of electron radiation cathode |
-
1977
- 1977-09-02 CH CH1066577A patent/CH617793A5/de not_active IP Right Cessation
-
1978
- 1978-07-21 DE DE19787821817 patent/DE7821817U1/de not_active Expired
- 1978-07-21 DE DE19782832027 patent/DE2832027C3/de not_active Expired
- 1978-08-02 GB GB7831971A patent/GB2003655B/en not_active Expired
- 1978-08-03 NL NL7808183A patent/NL7808183A/xx not_active Application Discontinuation
- 1978-09-01 FR FR7825256A patent/FR2402297A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2402297B1 (US07922777-20110412-C00004.png) | 1984-02-10 |
| DE7821817U1 (de) | 1987-06-04 |
| DE2832027A1 (de) | 1979-03-15 |
| DE2832027B2 (de) | 1981-07-09 |
| NL7808183A (nl) | 1979-03-06 |
| FR2402297A1 (fr) | 1979-03-30 |
| GB2003655A (en) | 1979-03-14 |
| CH617793A5 (US07922777-20110412-C00004.png) | 1980-06-13 |
| GB2003655B (en) | 1982-05-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| 8263 | Opposition against grant of a patent | ||
| C3 | Grant after two publication steps (3rd publication) | ||
| 8339 | Ceased/non-payment of the annual fee |