GB498843A - Improvements in or relating to electron multiplier discharge devices - Google Patents
Improvements in or relating to electron multiplier discharge devicesInfo
- Publication number
- GB498843A GB498843A GB19640/37A GB1964037A GB498843A GB 498843 A GB498843 A GB 498843A GB 19640/37 A GB19640/37 A GB 19640/37A GB 1964037 A GB1964037 A GB 1964037A GB 498843 A GB498843 A GB 498843A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- electrodes
- last
- relating
- discharge devices
- 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
- 229910052792 caesium Inorganic materials 0.000 abstract 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
- H01J43/04—Electron multipliers
- H01J43/06—Electrode arrangements
- H01J43/12—Anode arrangements
Landscapes
- Cold Cathode And The Manufacture (AREA)
- Electron Tubes For Measurement (AREA)
- Gas-Filled Discharge Tubes (AREA)
Abstract
498,843. Electron multipliers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BANKS, G. B. July 15, 1937, No. 19640. [Class 39 (i)] At least the last secondary-electron-emitting electrode is made more highly secondaryemissive over predetermined parts of its surface, whereby a desired shape of the output characteristic may be dbtained. A multiplier comprises a cathode 1, a control electrode 1a, secondary electrodes 2, and guiding electrodes 3 ; a magnetic field suitably directs the electrons on to successive electrodes 2. The last secondary electrode may have the portions C, Figs. 3 and 5, made more or less highly secondary-emissive, e.g. by coating with caesium. The output electrode may be combined with the last two guiding electrodes to form the electrode 34. Specification 473,571 is referred to.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB19640/37A GB498843A (en) | 1937-07-15 | 1937-07-15 | Improvements in or relating to electron multiplier discharge devices |
| FR840573D FR840573A (en) | 1937-07-15 | 1938-07-12 | Improvements to electronic multipliers |
| US218982A US2264269A (en) | 1937-07-15 | 1938-07-13 | Electron multiplier discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB19640/37A GB498843A (en) | 1937-07-15 | 1937-07-15 | Improvements in or relating to electron multiplier discharge devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB498843A true GB498843A (en) | 1939-01-16 |
Family
ID=10132718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19640/37A Expired GB498843A (en) | 1937-07-15 | 1937-07-15 | Improvements in or relating to electron multiplier discharge devices |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2264269A (en) |
| FR (1) | FR840573A (en) |
| GB (1) | GB498843A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE758171C (en) * | 1939-04-23 | 1954-04-22 | Otto Dr Peter | Secondary electron multiplier, in which the impact electrodes are capable of secondary emission to different degrees at different points |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2424289A (en) * | 1943-07-30 | 1947-07-22 | Rca Corp | Calculating device |
| US2535055A (en) * | 1945-01-04 | 1950-12-26 | Farnsworth Res Corp | Space discharge device |
| US2473031A (en) * | 1945-04-14 | 1949-06-14 | Farnsworth Res Corp | Electron multiplier for ultra high frequencies |
| US2591012A (en) * | 1949-09-17 | 1952-04-01 | Collins Radio Co | Electron tube of the high-frequency and high-power type |
| GB819217A (en) * | 1956-11-30 | 1959-09-02 | Nat Res Dev | Improvements in or relating to photo-electron image multipliers |
-
1937
- 1937-07-15 GB GB19640/37A patent/GB498843A/en not_active Expired
-
1938
- 1938-07-12 FR FR840573D patent/FR840573A/en not_active Expired
- 1938-07-13 US US218982A patent/US2264269A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE758171C (en) * | 1939-04-23 | 1954-04-22 | Otto Dr Peter | Secondary electron multiplier, in which the impact electrodes are capable of secondary emission to different degrees at different points |
Also Published As
| Publication number | Publication date |
|---|---|
| FR840573A (en) | 1939-04-27 |
| US2264269A (en) | 1941-12-02 |
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