GB630888A - Improvements in and relating to electron multipliers and circuits therefor - Google Patents
Improvements in and relating to electron multipliers and circuits thereforInfo
- Publication number
- GB630888A GB630888A GB3644046A GB3644046A GB630888A GB 630888 A GB630888 A GB 630888A GB 3644046 A GB3644046 A GB 3644046A GB 3644046 A GB3644046 A GB 3644046A GB 630888 A GB630888 A GB 630888A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dynodes
- circuit
- electron
- potential
- output
- 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
- H01J43/30—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
Landscapes
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
Abstract
630,888. Circuits for electron multipliers; valve modulating circuits. JONES, S. Dec. 10, 1946, No. 36440. [Classes 40 (v) and 40 (vi)] In an electron multiplier circuit, particularly for amplifying small D.C. potentials, a source of alternating modulating potential is applied to two dynodes, in push-pull, an output potential appearing across a circuit in the anode lead of the multiplier tube, tuned to the third harmonic of the alternating potential. The modulation components are additive, whereas the components fed to the output by capacitive coupling tend to cancel. The output signal may be rectified to give an amplified version of the input. Light, incident upon the photoelectric-cathode 4 causes the emission of electrons which pass to the dynodes 6 ... 14, an increased current flowing to the final anode 5. A source 30 of A.C. feeding dynodes 10, 12 modulates the electron stream, the circuit 27 being tuned to the third harmonic to pass a signal modulated according to the level of the light incident upon the cathode 4. Specification 531,219 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3644046A GB630888A (en) | 1946-12-10 | 1946-12-10 | Improvements in and relating to electron multipliers and circuits therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3644046A GB630888A (en) | 1946-12-10 | 1946-12-10 | Improvements in and relating to electron multipliers and circuits therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB630888A true GB630888A (en) | 1949-10-24 |
Family
ID=10388169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3644046A Expired GB630888A (en) | 1946-12-10 | 1946-12-10 | Improvements in and relating to electron multipliers and circuits therefor |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB630888A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2777948A (en) * | 1951-06-14 | 1957-01-15 | Farnsworth Res Corp | Blanking circuit for electron multiplier |
| US2828424A (en) * | 1954-04-15 | 1958-03-25 | Time Inc | Photoelectric method and apparatus |
-
1946
- 1946-12-10 GB GB3644046A patent/GB630888A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2777948A (en) * | 1951-06-14 | 1957-01-15 | Farnsworth Res Corp | Blanking circuit for electron multiplier |
| US2828424A (en) * | 1954-04-15 | 1958-03-25 | Time Inc | Photoelectric method and apparatus |
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