GB443777A - Electron discharge amplifiers - Google Patents
Electron discharge amplifiersInfo
- Publication number
- GB443777A GB443777A GB19823/34A GB1982334A GB443777A GB 443777 A GB443777 A GB 443777A GB 19823/34 A GB19823/34 A GB 19823/34A GB 1982334 A GB1982334 A GB 1982334A GB 443777 A GB443777 A GB 443777A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screens
- targets
- electrode
- electrons
- target
- 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
Landscapes
- Particle Accelerators (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
- Electron Sources, Ion Sources (AREA)
Abstract
443,777. Discharge apparatus. McGEE, J. D., 9, King's Avenue, Ealing, London. July 5, 1934, No. 19823. [Class 39 (i)] In an amplifier operating by the production of secondary electrons from a target due to the impact of primary electrons thereon, the secondary electrons following a path mainly clear of that of the primary electrons and falling upon a further electrode at a higher positive potential, concentrating means serving to increase the number of incident electrons are provided between an electron source and the target, and between the target and the further electrode. In one form, a zigzag glass envelope 1 contains an indirectly-heated cathode 2, an output electrode in the form of a Faraday cage 3, a plurality of targets A1, A2, A3, A4 and a plurality of screens 4, 5, 6, 7 connected either to the targets, as shown, or to intermediate potentials. The targets and the electrode 3 are maintained at successively increasing potentials by a potential divider 9. A series of concentrating coils M, separated by magnetic screens 10, surrounds the screens 4, 5, 6, 7. The ends of the screens 4, 5, 6, 7 may be furnished with grids G, or separate grids may be inserted and a control electrode 11 may by employed. The targets may consist of caesium or other alkali metal on silver oxide. In a modification a simple tube shaped envelope contains a photo-electric cathode, and cylindrical electrodes coaxial with the screens 4 accelerate and concentrate the beam. The coils M may then be dispensed with.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB19823/34A GB443777A (en) | 1934-07-05 | 1934-07-05 | Electron discharge amplifiers |
US28790A US2176221A (en) | 1934-07-05 | 1935-06-28 | Electron discharge apparatus |
FR792249D FR792249A (en) | 1934-07-05 | 1935-07-04 | Electronic discharge amplifiers |
DEE47142D DE758215C (en) | 1934-07-05 | 1935-07-05 | Secondary electron multiplier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB19823/34A GB443777A (en) | 1934-07-05 | 1934-07-05 | Electron discharge amplifiers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB443777A true GB443777A (en) | 1936-03-05 |
Family
ID=10135834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19823/34A Expired GB443777A (en) | 1934-07-05 | 1934-07-05 | Electron discharge amplifiers |
Country Status (4)
Country | Link |
---|---|
US (1) | US2176221A (en) |
DE (1) | DE758215C (en) |
FR (1) | FR792249A (en) |
GB (1) | GB443777A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB470026A (en) * | 1936-02-08 | 1937-08-09 | Marconi Wireless Telegraph Co | Improvements in or relating to electron discharge devices |
BE422389A (en) * | 1936-08-28 | |||
BE426512A (en) * | 1937-02-23 | |||
DE758355C (en) * | 1938-07-21 | 1952-11-17 | Siemens Schuckertwerke A G | Fine regulator working with discharge paths |
DE740925C (en) * | 1938-09-15 | 1943-10-30 | Fernseh Gmbh | Electron multipliers with photocathodes and fluorescent screens |
DE740855C (en) * | 1938-12-23 | 1943-10-29 | Bosch Gmbh Robert | Secondary electron multiplier with a series of metallic electrodes provided with baffle plates which delimit the discharge space on all sides |
US3849644A (en) * | 1973-03-28 | 1974-11-19 | Rca Corp | Electron discharge device having ellipsoid-shaped electrode surfaces |
US4199702A (en) * | 1976-05-03 | 1980-04-22 | Rca Corporation | Electron multiplier input electron optics |
CN103972017B (en) * | 2014-05-20 | 2016-07-06 | 江苏鑫知源仪器有限公司 | A kind of U-shaped PMT of direct-reading spectrometer |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1450265A (en) * | 1919-04-18 | 1923-04-03 | Westinghouse Electric & Mfg Co | Hot-cathode tube |
DE421581C (en) * | 1919-05-06 | 1925-11-13 | Siemens & Halske Akt Ges | As a relay, vibration generator or the like. Working glow cathode tubes |
US1559460A (en) * | 1920-06-30 | 1925-10-27 | Ruben Samuel | Electron tube |
FR582428A (en) * | 1923-09-15 | 1924-12-18 | Multiple plate electron tube | |
DE581499C (en) * | 1924-08-29 | 1934-09-29 | Apollinar Zeitlin | Braun tubes for telegraphy and television purposes |
US1903569A (en) * | 1926-09-15 | 1933-04-11 | Kenneth W Jarvis | Electron tube |
DE527444C (en) * | 1928-11-20 | 1931-06-18 | Bruno Pietzsch | Writing tube |
US1955899A (en) * | 1930-09-25 | 1934-04-24 | Rca Corp | Method and system for communication by television |
US1920863A (en) * | 1932-10-07 | 1933-08-01 | Jr Matthew S Hopkins | Amplification of radiant energy |
-
1934
- 1934-07-05 GB GB19823/34A patent/GB443777A/en not_active Expired
-
1935
- 1935-06-28 US US28790A patent/US2176221A/en not_active Expired - Lifetime
- 1935-07-04 FR FR792249D patent/FR792249A/en not_active Expired
- 1935-07-05 DE DEE47142D patent/DE758215C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2176221A (en) | 1939-10-17 |
DE758215C (en) | 1952-05-15 |
FR792249A (en) | 1935-12-26 |
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