GB491069A - Electron multiplier - Google Patents
Electron multiplierInfo
- Publication number
- GB491069A GB491069A GB2171/37A GB217137A GB491069A GB 491069 A GB491069 A GB 491069A GB 2171/37 A GB2171/37 A GB 2171/37A GB 217137 A GB217137 A GB 217137A GB 491069 A GB491069 A GB 491069A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrons
- electrode
- electromagnet
- jan
- return
- 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
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/76—Dynamic electron-multiplier tubes, e.g. Farnsworth multiplier tube, multipactor
Landscapes
- Measurement Of Radiation (AREA)
Abstract
491,069. Electron multipliers. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 25, 1937, No. 2171. Convention date, Jan. 23, 1936. [Class 39 (i)] Electrons from a photo-electric surface are caused to return to the same surface under the influence of a transverse magnetic field and liberate secondary electrons, which are returned to the emitting surface in the same way. The Figure shows a flat cell between the poles of an electromagnet 4. Electrons emitted from the surface 1 return thereto under the influence of the electromagnet 4 and an anode 3. 2 is a collecting electrode between which and the electrode 1 is established an alternating field of such frequency as to reinforce the action of the magnetic field in withdrawing the electrons from and returning them to the electrode 1.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE491069X | 1936-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB491069A true GB491069A (en) | 1938-08-25 |
Family
ID=6544216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2171/37A Expired GB491069A (en) | 1936-01-23 | 1937-01-25 | Electron multiplier |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR816460A (en) |
| GB (1) | GB491069A (en) |
| NL (1) | NL46403C (en) |
-
0
- NL NL46403D patent/NL46403C/xx active
-
1937
- 1937-01-19 FR FR816460D patent/FR816460A/en not_active Expired
- 1937-01-25 GB GB2171/37A patent/GB491069A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL46403C (en) | |
| FR816460A (en) | 1937-08-09 |
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