GB483575A - Improvements in or relating to electron discharge device arrangements - Google Patents
Improvements in or relating to electron discharge device arrangementsInfo
- Publication number
- GB483575A GB483575A GB2865936A GB2865936A GB483575A GB 483575 A GB483575 A GB 483575A GB 2865936 A GB2865936 A GB 2865936A GB 2865936 A GB2865936 A GB 2865936A GB 483575 A GB483575 A GB 483575A
- Authority
- GB
- United Kingdom
- Prior art keywords
- source
- collector
- grids
- secondary emissive
- electrons
- 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
- 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
- H01J43/06—Electrode arrangements
- H01J43/18—Electrode arrangements using essentially more than one dynode
- H01J43/22—Dynodes consisting of electron-permeable material, e.g. foil, grid, tube, venetian blind
Landscapes
- Electron Sources, Ion Sources (AREA)
Abstract
483,575. Electron multipliers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BANKS. G. B. Oct. 21, 1936. No. 28659. [Class 39 (i)] An electron multiplier has a source of electrons, a collecting electrode, and a plurality of grid-like or perforated secondary emissive electrodes interposed in succession in and extending across the space between the source and the collector and means for generating a magnetic field having lines of forces running in the direction of length between the source and the collector, the grids being parallel and canted so as to make angles other than right-angles with the lines of force, the arrangement being such that the secondary emissive electrodes are struck obliquely by electrons. In a modification, the grids 4 ... 9, Fig. 2, are nested cones, and the collector 3 is similarly conical. If the source is thermionic, instead of photo-electric, control and space charge grids may be associated with it. A potentiometer supplying the voltages for the secondary emissive electrodes may be housed in the envelope.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2865936A GB483575A (en) | 1936-10-21 | 1936-10-21 | Improvements in or relating to electron discharge device arrangements |
| FR827731D FR827731A (en) | 1936-10-21 | 1937-10-11 | Improvements to electronic discharge devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2865936A GB483575A (en) | 1936-10-21 | 1936-10-21 | Improvements in or relating to electron discharge device arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB483575A true GB483575A (en) | 1938-04-21 |
Family
ID=10279093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2865936A Expired GB483575A (en) | 1936-10-21 | 1936-10-21 | Improvements in or relating to electron discharge device arrangements |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR827731A (en) |
| GB (1) | GB483575A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2445018A1 (en) * | 1978-12-22 | 1980-07-18 | Anvar | ELECTRON MULTIPLIER TUBE WITH AXIAL MAGNETIC FIELD |
-
1936
- 1936-10-21 GB GB2865936A patent/GB483575A/en not_active Expired
-
1937
- 1937-10-11 FR FR827731D patent/FR827731A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR827731A (en) | 1938-05-03 |
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