GB469899A - Improvements in or relating to electron discharge devices - Google Patents
Improvements in or relating to electron discharge devicesInfo
- Publication number
- GB469899A GB469899A GB327536A GB327536A GB469899A GB 469899 A GB469899 A GB 469899A GB 327536 A GB327536 A GB 327536A GB 327536 A GB327536 A GB 327536A GB 469899 A GB469899 A GB 469899A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- caesium
- coated
- relating
- emitting
- 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 2
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 abstract 2
- 230000003247 decreasing effect Effects 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
- H01J43/18—Electrode arrangements using essentially more than one dynode
- H01J43/20—Dynodes consisting of sheet material, e.g. plane, bent
Landscapes
- Particle Accelerators (AREA)
- X-Ray Techniques (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
469,899. Electron multipliers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BRETT, G. F. Feb: 3, 1936, No. 3275. [Class 39 (i)] A multiplier comprises a gun, a secondary-emitting target, and additional electrodes, surrounding the beam, which are also secondary-emitting, with the exception of that which serves as the output electrode. In one form the gun comprises a photo-electric or thermionic cathode 1, a control electrode 2 and an accelerating anode 3, and a circular or ribbon-shaped beam is projected onto a first target 4. The secondary beams travel to cylindrical electrodes 7, 6 and output electrode 5. The electrodes 4, 7, 6 may be caesium coated, and the electrodes 7, 6, 5, in that order, may have decreasing diameters. The electrodes 7, 6 may be coated on their outer as well as their inner faces with caesium so that both faces are used.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB327636A GB469900A (en) | 1936-02-03 | 1936-02-03 | Improvements in or relating to electron discharge devices |
| GB327536A GB469899A (en) | 1936-02-03 | 1936-02-03 | Improvements in or relating to electron discharge devices |
| FR817161D FR817161A (en) | 1936-02-03 | 1937-02-01 | Improvements to electronic discharge devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB327536A GB469899A (en) | 1936-02-03 | 1936-02-03 | Improvements in or relating to electron discharge devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB469899A true GB469899A (en) | 1937-08-03 |
Family
ID=9755251
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB327536A Expired GB469899A (en) | 1936-02-03 | 1936-02-03 | Improvements in or relating to electron discharge devices |
| GB327636A Expired GB469900A (en) | 1936-02-03 | 1936-02-03 | Improvements in or relating to electron discharge devices |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB327636A Expired GB469900A (en) | 1936-02-03 | 1936-02-03 | Improvements in or relating to electron discharge devices |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR817161A (en) |
| GB (2) | GB469899A (en) |
-
1936
- 1936-02-03 GB GB327536A patent/GB469899A/en not_active Expired
- 1936-02-03 GB GB327636A patent/GB469900A/en not_active Expired
-
1937
- 1937-02-01 FR FR817161D patent/FR817161A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB469900A (en) | 1937-08-03 |
| FR817161A (en) | 1937-08-27 |
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