BE474312A - - Google Patents
Info
- Publication number
- BE474312A BE474312A BE474312DA BE474312A BE 474312 A BE474312 A BE 474312A BE 474312D A BE474312D A BE 474312DA BE 474312 A BE474312 A BE 474312A
- Authority
- BE
- Belgium
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
- H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
- H01J9/125—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes of secondary emission electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/32—Secondary emission electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Cold Cathode And The Manufacture (AREA)
- Electron Sources, Ion Sources (AREA)
- Gas-Filled Discharge Tubes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US660106A US2586771A (en) | 1946-04-06 | 1946-04-06 | Process for making secondary emission electrodes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE474312A true BE474312A (fr) |
Family
ID=24648164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE474312D BE474312A (fr) | 1946-04-06 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2586771A (fr) |
| BE (1) | BE474312A (fr) |
| ES (1) | ES178875A1 (fr) |
| FR (1) | FR956472A (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE519545A (fr) * | 1952-05-01 | |||
| US3713901A (en) * | 1970-04-20 | 1973-01-30 | Trw Inc | Oxidation resistant refractory alloys |
| US4978885A (en) * | 1989-03-02 | 1990-12-18 | Galileo Electro-Optics Corporation | Electron multipliers with reduced ion feedback |
| US6239549B1 (en) | 1998-01-09 | 2001-05-29 | Burle Technologies, Inc. | Electron multiplier electron source and ionization source using it |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2237242A (en) * | 1938-01-05 | 1941-04-01 | Univ Illinois | Phototube |
| FR845087A (fr) * | 1938-04-22 | 1939-08-10 | Radio Electr Soc Fr | Cathodes à forte émission secondaire d'électrons |
| FR862488A (fr) * | 1939-08-29 | 1941-03-07 | Materiel Telephonique | électrodes à émission électronique |
| GB559591A (en) * | 1942-07-17 | 1944-02-25 | Int Standard Electric Corp | Improvements relating to secondary electron emissive electrodes |
-
0
- BE BE474312D patent/BE474312A/xx unknown
- FR FR956472D patent/FR956472A/fr not_active Expired
-
1946
- 1946-04-06 US US660106A patent/US2586771A/en not_active Expired - Lifetime
-
1947
- 1947-07-11 ES ES0178875A patent/ES178875A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2586771A (en) | 1952-02-26 |
| FR956472A (fr) | 1950-02-02 |
| ES178875A1 (es) | 1947-09-16 |