FR1457464A - Axially symmetrical device for producing an electron beam - Google Patents
Axially symmetrical device for producing an electron beamInfo
- Publication number
- FR1457464A FR1457464A FR28326A FR28326A FR1457464A FR 1457464 A FR1457464 A FR 1457464A FR 28326 A FR28326 A FR 28326A FR 28326 A FR28326 A FR 28326A FR 1457464 A FR1457464 A FR 1457464A
- Authority
- FR
- France
- Prior art keywords
- producing
- electron beam
- axially symmetrical
- symmetrical device
- axially
- 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
- 238000010894 electron beam technology Methods 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement
- H01J37/06—Electron sources; Electron guns
- H01J37/075—Electron guns using thermionic emission from cathodes heated by particle bombardment or by irradiation, e.g. by laser
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR28326A FR1457464A (en) | 1965-08-13 | 1965-08-13 | Axially symmetrical device for producing an electron beam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR28326A FR1457464A (en) | 1965-08-13 | 1965-08-13 | Axially symmetrical device for producing an electron beam |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1457464A true FR1457464A (en) | 1966-01-24 |
Family
ID=8586637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR28326A Expired FR1457464A (en) | 1965-08-13 | 1965-08-13 | Axially symmetrical device for producing an electron beam |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1457464A (en) |
-
1965
- 1965-08-13 FR FR28326A patent/FR1457464A/en not_active Expired
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