GB488688A - Improvements in or relating to secondary electron emitting electrodes - Google Patents
Improvements in or relating to secondary electron emitting electrodesInfo
- Publication number
- GB488688A GB488688A GB28377/37A GB2837737A GB488688A GB 488688 A GB488688 A GB 488688A GB 28377/37 A GB28377/37 A GB 28377/37A GB 2837737 A GB2837737 A GB 2837737A GB 488688 A GB488688 A GB 488688A
- Authority
- GB
- United Kingdom
- Prior art keywords
- secondary electron
- electron emitting
- relating
- emitting electrodes
- nickel
- 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
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910052790 beryllium Inorganic materials 0.000 abstract 2
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 abstract 2
- 229910000838 Al alloy Inorganic materials 0.000 abstract 1
- 229910001020 Au alloy Inorganic materials 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910000881 Cu alloy Inorganic materials 0.000 abstract 1
- 229910000640 Fe alloy Inorganic materials 0.000 abstract 1
- 229910001182 Mo alloy Inorganic materials 0.000 abstract 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 1
- 229910000990 Ni alloy Inorganic materials 0.000 abstract 1
- 229910001362 Ta alloys Inorganic materials 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000011733 molybdenum Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910052712 strontium Inorganic materials 0.000 abstract 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 abstract 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 abstract 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
- H01J1/32—Secondary-electron-emitting electrodes
Landscapes
- Cold Cathode And The Manufacture (AREA)
- Discharge Lamp (AREA)
- Electron Sources, Ion Sources (AREA)
Abstract
Secondary electron emitting electrodes are made of or covered with an alloy of copper, nickel, molybdenum, tantalum, aluminium, gold, or iron with a metal of low work function such as barium, strontium, or preferably beryllium, for example 0,1-10 per cent. Particular examples consist of copper or nickel with 2,5 per cent of beryllium.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR716974X | 1936-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB488688A true GB488688A (en) | 1938-07-12 |
Family
ID=9089828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28377/37A Expired GB488688A (en) | 1936-10-23 | 1937-10-18 | Improvements in or relating to secondary electron emitting electrodes |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2189971A (en) |
| DE (1) | DE716974C (en) |
| FR (1) | FR824365A (en) |
| GB (1) | GB488688A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE744105C (en) * | 1939-09-14 | 1944-01-10 | Zeiss Ikon Ag | Process for increasing the secondary emission yield of secondary emission-capable layers |
| DE889812C (en) * | 1941-03-14 | 1953-09-14 | Telefunken Gmbh | Incandescent cathode for electric discharge tubes |
| GB670582A (en) * | 1945-11-07 | 1952-04-23 | Emi Ltd | Improvements in or relating to electron discharge devices employing secondary-electron-emission and electrodes for use therein |
| NL97180C (en) * | 1953-05-21 | |||
| US4792680A (en) * | 1987-01-12 | 1988-12-20 | Xerox Corporation | Corona device having a beryllium copper screen |
-
1936
- 1936-10-23 FR FR824365D patent/FR824365A/en not_active Expired
- 1936-12-01 DE DES125152D patent/DE716974C/en not_active Expired
-
1937
- 1937-10-15 US US169172A patent/US2189971A/en not_active Expired - Lifetime
- 1937-10-18 GB GB28377/37A patent/GB488688A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR824365A (en) | 1938-02-07 |
| DE716974C (en) | 1942-02-03 |
| US2189971A (en) | 1940-02-13 |
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