GB487610A - Improvements in electron multipliers - Google Patents
Improvements in electron multipliersInfo
- Publication number
- GB487610A GB487610A GB1069/37A GB106937A GB487610A GB 487610 A GB487610 A GB 487610A GB 1069/37 A GB1069/37 A GB 1069/37A GB 106937 A GB106937 A GB 106937A GB 487610 A GB487610 A GB 487610A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- electrodes
- screens
- screen
- cathode
- 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
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 4
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 229910052759 nickel Inorganic materials 0.000 abstract 2
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 abstract 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 abstract 1
- 229910001942 caesium oxide Inorganic materials 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910052711 selenium Inorganic materials 0.000 abstract 1
- 239000011669 selenium Substances 0.000 abstract 1
- 229910010271 silicon carbide Inorganic materials 0.000 abstract 1
- 229910001923 silver oxide Inorganic materials 0.000 abstract 1
- 238000001228 spectrum 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
- H01J43/30—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Amplifiers (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Abstract
487,610. Electron multipliers. FARNSWORTH TELEVISION, Inc. Jan. 13, 1937, No. 1069. Convention date, Feb. 11, 1936. [Classes 39 (i) and 40 (v)] An electron multiplier particularly for use as a detector and/or amplifier in a radio receiving circuit consists of a number of foraminated secondary emitting electrodes 6 ... 13, foraminated screens 5, 5<1> between these electrodes and end electrodes 4, 4<1> both of which are coated with emissive material such as caesium or silver oxide ; the screens are of carbonized nickel so as not to emit secondaries. The ratio of the area of the electrodes 6-13 to the holes therein is of the order of 3 or 4 to 1. The electrodes have applied thereto a potential gradient either through external resistances 22, 24, Fig. 3, or by means of a coating within the envelope 1, the screens 5, 5<1> being insulated from this coating ; this may be of nickel, graphite, carborundum or selenium. The electrode 4 acts as the primary photo-electric cathode and the electrode 4<1> as the output electrode. As shown in Fig. 2, an incoming radio signal is applied to the cathode 4 which receives from a source 27 light filtered so that only the red or infra-red region of the spectrum is effective. The screen 5 is connected to earth through a bias resistor 31 shunted by a condenser 32 ; by changed values of the resistance and condenser the tube either amplifies or detects. These uses may also be effected by control of the biassing of the electrode 4<1> and screen 5<1>; in this arrangement the cathode 4 and shield 5 may be used for A.V.C. Heterodyne detection may also be obtained. Instead of biassing from a D.C. source 21 alternating current may be used. The Specification as open to inspection under Sect. 91 also states that the screen 5<1> may act as the output electrode for the multiplier, the electrode 4<1> then acting as a secondary emitter. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63424A US2135615A (en) | 1936-02-11 | 1936-02-11 | Multipactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB487610A true GB487610A (en) | 1938-06-23 |
Family
ID=22049100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1069/37A Expired GB487610A (en) | 1936-02-11 | 1937-01-13 | Improvements in electron multipliers |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2135615A (en) |
| DE (1) | DE971006C (en) |
| FR (1) | FR817748A (en) |
| GB (1) | GB487610A (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE767107C (en) * | 1939-01-19 | 1951-10-31 | Sueddeutsche Telefon App | Secondary electron multiplier working as a pendulum multiplier |
| DE861727C (en) * | 1939-06-10 | 1953-01-05 | Sueddeutsche Telefon App | Multi-grating tubes with secondary emission and their use in a circuit for balancing asymmetrical input voltages |
| US2558337A (en) * | 1945-12-10 | 1951-06-26 | Howard A Chinn | Noise generator |
| US2702865A (en) * | 1949-04-02 | 1955-02-22 | Texas Co | Electron multiplier |
| US2580697A (en) * | 1949-06-30 | 1952-01-01 | Bell Telephone Labor Inc | Image dissector tube |
| US2895068A (en) * | 1954-12-14 | 1959-07-14 | Siemens Edison Swan Ltd | Photo-electric cells |
| BE553405A (en) * | 1955-12-26 | |||
| NL236730A (en) * | 1958-03-06 | |||
| US3299316A (en) * | 1963-08-28 | 1967-01-17 | Hughes Aircraft Co | Voltage divider network encapsulated in the housing of a storage tube |
| GB1152336A (en) * | 1965-08-30 | 1969-05-14 | Sylvania Electric Prod | Electrostatic Writing Tube and method of manufacture |
| US3510714A (en) * | 1967-05-01 | 1970-05-05 | Research Corp | Solar energy converter with trough-shaped cathode and shielded,planar anode |
| US11588421B1 (en) | 2019-08-15 | 2023-02-21 | Robert M. Lyden | Receiver device of energy from the earth and its atmosphere |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE944873C (en) * | 1935-03-07 | 1956-06-28 | Aeg | Device for amplifying an electron flow |
-
1936
- 1936-02-11 US US63424A patent/US2135615A/en not_active Expired - Lifetime
-
1937
- 1937-01-13 GB GB1069/37A patent/GB487610A/en not_active Expired
- 1937-02-10 DE DEF4475D patent/DE971006C/en not_active Expired
- 1937-02-11 FR FR817748D patent/FR817748A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2135615A (en) | 1938-11-08 |
| FR817748A (en) | 1937-09-09 |
| DE971006C (en) | 1958-11-27 |
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