GB613645A - Improvements in and relating to electron multipliers - Google Patents
Improvements in and relating to electron multipliersInfo
- Publication number
- GB613645A GB613645A GB1885946A GB1885946A GB613645A GB 613645 A GB613645 A GB 613645A GB 1885946 A GB1885946 A GB 1885946A GB 1885946 A GB1885946 A GB 1885946A GB 613645 A GB613645 A GB 613645A
- Authority
- GB
- United Kingdom
- Prior art keywords
- secondary cathodes
- cathodes
- primary cathode
- accelerator grid
- electron
- 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
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
- Electron Tubes For Measurement (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
Abstract
613,645. Electron multipliers. GENERAL ELECTRIC CO., Ltd., CUTTING, A. B., and WARREN, G. W. June 24, 1946, No. 18859. [Class 39 (i)] In an electron multiplier comprising a photoelectric primary cathode and two or more secondary cathodes in the form of hollow shells which form part of or are electrically connected to separate metal plates sealed through the envelope, the secondary cathodes are so arranged that the electron stream strikes alternate secondary cathodes on the inner surfaces and the other secondary cathodes on the outer surfaces of the hollow shells. As shown, secondary cathodes 11, 14 are concave inwards over their lower parts and secondary cathodes 12, 15 concave outwards over their upper parts. These electrodes and also accelerator grid 18 and anode 17 are supported by, and may be integral with, annular metal discs passing through the envelope. The primary cathode 8 is of glass coated with photo-emissive material and is surrounded by a first accelerator grid 10. In another embodiment the electrode 11 may comprise the primary cathode, in which case it is of glass and coated on its inner surface with photo-emissive material. According to the Provisional Specification, the secondary electrode 12 may form a continuation of the accelerator grid 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1885946A GB613645A (en) | 1946-06-24 | 1946-06-24 | Improvements in and relating to electron multipliers |
| FR948964D FR948964A (en) | 1946-06-24 | 1947-06-24 | Electron multiplier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1885946A GB613645A (en) | 1946-06-24 | 1946-06-24 | Improvements in and relating to electron multipliers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB613645A true GB613645A (en) | 1948-12-01 |
Family
ID=10119632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1885946A Expired GB613645A (en) | 1946-06-24 | 1946-06-24 | Improvements in and relating to electron multipliers |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR948964A (en) |
| GB (1) | GB613645A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110828277A (en) * | 2019-11-13 | 2020-02-21 | 上海裕达实业有限公司 | Integrated form multiplication detection device |
-
1946
- 1946-06-24 GB GB1885946A patent/GB613645A/en not_active Expired
-
1947
- 1947-06-24 FR FR948964D patent/FR948964A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110828277A (en) * | 2019-11-13 | 2020-02-21 | 上海裕达实业有限公司 | Integrated form multiplication detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| FR948964A (en) | 1949-08-17 |
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