GB490761A - Improvements in or relating to electron multiplying devices - Google Patents
Improvements in or relating to electron multiplying devicesInfo
- Publication number
- GB490761A GB490761A GB5219/37A GB521937A GB490761A GB 490761 A GB490761 A GB 490761A GB 5219/37 A GB5219/37 A GB 5219/37A GB 521937 A GB521937 A GB 521937A GB 490761 A GB490761 A GB 490761A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- electrode
- emitting
- feb
- 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
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
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
- Cold Cathode And The Manufacture (AREA)
Abstract
490,761. Electron multipliers. FERNSEH AKT.-GES. Feb. 22, 1937, No. 5219. Convention date, Feb. 20, 1936. [Class 39 (i)] An electron multiplier comprises a secondary emitting electrode or electrodes lying on the surface of a cylinder or cylinders and annular accelerating electrodes coaxial with the emitting electrodes. Fig. 1 shows emitting electrodes 3 .. 10 formed as slightly overlapping cylinders and an equal number of annular accelerating electrodes 11 .. 18, the electrode 11 enclosed by the electrode 3 being connected to the electrode 5 and so on. The electrodes are maintained at progressively higher potentials by a potential divider 19. Fig. 3 shows an arrangement in which electrons from a photoelectric surface 20 pass through a convex permeable electrode 21 and thence to the first emitting electrode 3. The accelerating electrodes 11 .. 14 are permeable radially to the electrons, e.g. by being formed of rods arranged on the surface of a cylinder. The emitting electrodes may be formed by a single helix of high-resistance material.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE490761X | 1936-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB490761A true GB490761A (en) | 1938-08-22 |
Family
ID=6544161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5219/37A Expired GB490761A (en) | 1936-02-20 | 1937-02-22 | Improvements in or relating to electron multiplying devices |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2159519A (en) |
| GB (1) | GB490761A (en) |
| NL (1) | NL56682C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2433724A (en) * | 1944-05-29 | 1947-12-30 | Farnsworth Res Corp | Phototube multiplier |
| US2868994A (en) * | 1955-10-24 | 1959-01-13 | Rca Corp | Electron multiplier |
| US3684910A (en) * | 1970-05-18 | 1972-08-15 | Itt | Electron multiplier having dynode modules |
| AU529290B2 (en) * | 1977-08-24 | 1983-06-02 | Commonwealth Scientific And Industrial Research Organisation | Cylindrical electron multiplier |
-
0
- NL NL56682D patent/NL56682C/xx active
-
1937
- 1937-02-17 US US126312A patent/US2159519A/en not_active Expired - Lifetime
- 1937-02-22 GB GB5219/37A patent/GB490761A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL56682C (en) | |
| US2159519A (en) | 1939-05-23 |
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