GB524658A - Improvements in or relating to electron multipliers - Google Patents
Improvements in or relating to electron multipliersInfo
- Publication number
- GB524658A GB524658A GB3658/39A GB365839A GB524658A GB 524658 A GB524658 A GB 524658A GB 3658/39 A GB3658/39 A GB 3658/39A GB 365839 A GB365839 A GB 365839A GB 524658 A GB524658 A GB 524658A
- Authority
- GB
- United Kingdom
- Prior art keywords
- multiplier
- grid
- electron
- electron multipliers
- relating
- 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
- 239000000463 material Substances 0.000 abstract 5
- 230000003213 activating effect Effects 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 150000001642 boronic acid derivatives Chemical class 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification 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
- H01J43/28—Vessels, e.g. wall of the tube; Windows; Screens; Suppressing undesired discharges or currents
Landscapes
- Electron Sources, Ion Sources (AREA)
- Discharge Lamp (AREA)
Abstract
524,658. Electron multipliers. STANDARD TELEPHONES & CABLES, Ltd., and VANGEEN, A. I. Feb. 3, 1939, No. 3658. [Class 39 (i)] In an electron-multiplier the secondary emissive electrodes have their surfaces renewed during or after a period of working of the multiplier ; stores K of activating material may be held in a container provided with a heater R which may be used to vaporize the material when desired. In modification a grid is coated with the material and placed immediately next to the electrode, some of the material being evaporated continuously from the grid on to the electrode during working. Suitable material would be alkali or alkaline earth borates.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB260192X | 1939-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB524658A true GB524658A (en) | 1940-08-12 |
Family
ID=10237073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3658/39A Expired GB524658A (en) | 1939-02-03 | 1939-02-03 | Improvements in or relating to electron multipliers |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2581460A (en) |
| BE (1) | BE477661A (en) |
| CH (1) | CH260192A (en) |
| FR (1) | FR862597A (en) |
| GB (1) | GB524658A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3647286A (en) * | 1969-02-10 | 1972-03-07 | John H Delorme Jr | Reproduction apparatus using photovoltaic material |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2027025A (en) * | 1932-12-31 | 1936-01-07 | Rca Corp | Photo-electric device |
| BE427228A (en) * | 1937-03-30 | |||
| NL50859C (en) * | 1937-03-30 | 1941-08-16 |
-
0
- BE BE477661D patent/BE477661A/xx unknown
-
1939
- 1939-02-03 GB GB3658/39A patent/GB524658A/en not_active Expired
- 1939-12-28 FR FR862597D patent/FR862597A/en not_active Expired
-
1947
- 1947-04-09 CH CH260192D patent/CH260192A/en unknown
- 1947-08-07 US US767018A patent/US2581460A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CH260192A (en) | 1949-02-28 |
| BE477661A (en) | |
| US2581460A (en) | 1952-01-08 |
| FR862597A (en) | 1941-03-10 |
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