GB502528A - Improvements in or relating to electron discharge devices utilising secondary emission - Google Patents
Improvements in or relating to electron discharge devices utilising secondary emissionInfo
- Publication number
- GB502528A GB502528A GB21222/38A GB2122238A GB502528A GB 502528 A GB502528 A GB 502528A GB 21222/38 A GB21222/38 A GB 21222/38A GB 2122238 A GB2122238 A GB 2122238A GB 502528 A GB502528 A GB 502528A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- electrode
- electron
- electron discharge
- coatings
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
- H01J43/04—Electron multipliers
-
- 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
- Electron Sources, Ion Sources (AREA)
- Discharge Lamp (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
- Microwave Tubes (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Gas-Filled Discharge Tubes (AREA)
- Lasers (AREA)
- X-Ray Techniques (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
502,528. Electron multipliers. ELECTRICAL RESEARCH PRODUCTS, Inc. July 18, 1938, No. 21222. Convention date, Aug. 31, 1937. [Class 39 (i)] An electron discharge device has a primary cathode, a collector electrode and, between them, a plurality of successively arranged secondary-emitting electrodes, each provided with metallic plates adjacent its opposite sides and defining a channel along the electrode surfaces. In the form shown, the secondary electrodes are a plurality of helically arranged coatings 13 on a cylindrical outer wall 11, each facing a similar coating 16 on a central hollow member 10 which forms an accelerating electrode. Metallic plates 19, 21 complete the channel between the electrodes. The cathode (not shown) is a photo-electric coating similar to coatings 13 and the collector electrode is a plate 23. Leads are taken through the walls to each electrode, each accelerating electrode being maintained at the same potential as the succeeding secondary electrode, and the plates 19, 21 at an intermediate potential between their corresponding electrodes 13, 16. A cylindrical bar magnet inserted in the member 10 deflects the electrons between the secondary electrodes. The electrodes 16 are preferably secondary-electron-emissive and, if desired, the functions of electrodes 13, 16 may be interchanged.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US111808A US2160796A (en) | 1936-11-20 | 1936-11-20 | Electron discharge apparatus |
| US111796A US2134718A (en) | 1936-11-20 | 1936-11-20 | Electron discharge apparatus |
| US111809A US2160797A (en) | 1936-11-20 | 1936-11-20 | Electron discharge apparatus |
| US111810A US2160798A (en) | 1936-11-20 | 1936-11-20 | Electron discharge apparatus |
| US160997A US2236041A (en) | 1936-11-20 | 1937-08-26 | Electron discharge device |
| US161747A US2160799A (en) | 1936-11-20 | 1937-08-31 | Electron discharge device |
| US176566A US2245605A (en) | 1936-11-20 | 1937-11-26 | Electron multiplier |
| US205931A US2245624A (en) | 1936-11-20 | 1938-05-04 | Electron discharge apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB502528A true GB502528A (en) | 1939-03-20 |
Family
ID=22644877
Family Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31090/37A Expired GB500447A (en) | 1936-11-20 | 1937-11-12 | Improvements in or relating to electron discharge apparatus of the electron multiplier type |
| GB31091/37A Expired GB500448A (en) | 1936-11-20 | 1937-11-12 | Improvements in or relating to electron discharge apparatus of the electron multiplier type |
| GB31885/37A Expired GB505663A (en) | 1936-11-20 | 1937-11-19 | Improvements in or relating to electron discharge apparatus of the electron multiplier type |
| GB20896/38A Expired GB500170A (en) | 1936-11-20 | 1938-07-14 | Improvements in or relating to electron discharge devices utilising secondary emission and electrode structures therefor |
| GB21222/38A Expired GB502528A (en) | 1936-11-20 | 1938-07-18 | Improvements in or relating to electron discharge devices utilising secondary emission |
| GB33529/38A Expired GB521077A (en) | 1936-11-20 | 1938-11-18 | Improvements in or relating to electron discharge devices |
Family Applications Before (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31090/37A Expired GB500447A (en) | 1936-11-20 | 1937-11-12 | Improvements in or relating to electron discharge apparatus of the electron multiplier type |
| GB31091/37A Expired GB500448A (en) | 1936-11-20 | 1937-11-12 | Improvements in or relating to electron discharge apparatus of the electron multiplier type |
| GB31885/37A Expired GB505663A (en) | 1936-11-20 | 1937-11-19 | Improvements in or relating to electron discharge apparatus of the electron multiplier type |
| GB20896/38A Expired GB500170A (en) | 1936-11-20 | 1938-07-14 | Improvements in or relating to electron discharge devices utilising secondary emission and electrode structures therefor |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33529/38A Expired GB521077A (en) | 1936-11-20 | 1938-11-18 | Improvements in or relating to electron discharge devices |
Country Status (7)
| Country | Link |
|---|---|
| US (8) | US2160798A (en) |
| BE (1) | BE431298A (en) |
| CH (2) | CH208067A (en) |
| DE (1) | DE886343C (en) |
| FR (3) | FR824648A (en) |
| GB (6) | GB500447A (en) |
| NL (1) | NL49799C (en) |
Families Citing this family (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE865161C (en) * | 1940-01-20 | 1953-01-29 | Sueddeutsche Telefon App | Arrangement for modulating one or more main carrier frequencies with two or more modulated auxiliary carrier frequencies |
| US2433724A (en) * | 1944-05-29 | 1947-12-30 | Farnsworth Res Corp | Phototube multiplier |
| US2451400A (en) * | 1944-09-09 | 1948-10-12 | Oran T Mcilvaine | Photoelectric tube |
| US2585044A (en) * | 1945-02-05 | 1952-02-12 | Farnsworth Res Corp | Gain control apparatus |
| US2582141A (en) * | 1946-09-16 | 1952-01-08 | Bendix Aviat Corp | Sonic tube |
| US2627044A (en) * | 1948-06-23 | 1953-01-27 | Continental Electric Company | Cathode for photocells |
| US2760097A (en) * | 1950-12-22 | 1956-08-21 | Westinghouse Electric Corp | Cathode structures |
| GB777457A (en) * | 1954-02-25 | 1957-06-26 | Bendix Aviat Corp | Electron multiplier |
| US2953703A (en) * | 1954-06-14 | 1960-09-20 | Westinghouse Electric Corp | Photomultiplier design having high response to x-rays |
| US2903595A (en) * | 1954-12-24 | 1959-09-08 | Rca Corp | Electron multiplier |
| US2826704A (en) * | 1955-01-03 | 1958-03-11 | Bendix Aviat Corp | Magnetic electron multiplier gate |
| NL104002C (en) * | 1955-06-11 | |||
| US2932768A (en) * | 1955-10-21 | 1960-04-12 | Bendix Aviat Corp | Magnetic electron multiplier |
| US2909689A (en) * | 1955-09-12 | 1959-10-20 | Gen Electric | Support strap for electron gun structures |
| US2897391A (en) * | 1957-04-02 | 1959-07-28 | George B Erskine | Studded electrode and method of manufacture |
| NL228956A (en) * | 1957-07-06 | |||
| CH358872A (en) * | 1958-07-11 | 1961-12-15 | Zeiss Jena Veb Carl | Secondary electron multiplier |
| GB892454A (en) * | 1959-05-21 | 1962-03-28 | Bush And Rank Cintel Ltd | Improvements in or relating to electron multipliers |
| US2950408A (en) * | 1959-10-30 | 1960-08-23 | Hughes Aircraft Co | Multi-gap collimation lens for use in direct-view storage tube |
| US3191086A (en) * | 1960-11-23 | 1965-06-22 | Radames K H Gebel | Secondary emission multiplier intensifier image orthicon |
| FR1313827A (en) * | 1961-11-03 | 1963-01-04 | Philips Brasil | Manufacturing process of elements in the form of louvers, applicable to the production of dynodes of photomultipliers |
| US3390272A (en) * | 1965-03-31 | 1968-06-25 | Sylvania Electric Prod | Photomultiplier |
| US3519870A (en) * | 1967-05-18 | 1970-07-07 | Xerox Corp | Spiraled strip material having parallel grooves forming plurality of electron multiplier channels |
| US3506868A (en) * | 1967-05-22 | 1970-04-14 | Bendix Corp | Positive-type electron multiplier channels connected in series |
| US3538328A (en) * | 1968-03-04 | 1970-11-03 | Varian Associates | Scintillation-type ion detector employing a secondary emitter target surrounding the ion path |
| GB1470162A (en) * | 1973-02-27 | 1977-04-14 | Emi Ltd | Electron multiplying arrangements |
| US3875441A (en) * | 1973-11-29 | 1975-04-01 | Rca Corp | Electron discharge device including an electron emissive electrode having an undulating cross-sectional contour |
| US3944867A (en) * | 1974-03-15 | 1976-03-16 | Zenith Radio Corporation | Shadow mask having ribs bounding rectangular apertures |
| US4184098A (en) * | 1976-04-22 | 1980-01-15 | S.R.C. Laboratories, Inc. | Cone type dynode for photomultiplier tube |
| US4143291A (en) * | 1976-04-22 | 1979-03-06 | S.R.C. Laboratories, Inc. | Dynode for a photomultiplier tube |
| FR2445018A1 (en) * | 1978-12-22 | 1980-07-18 | Anvar | ELECTRON MULTIPLIER TUBE WITH AXIAL MAGNETIC FIELD |
| DE2904696A1 (en) * | 1979-02-08 | 1980-08-21 | Proxitronic Funk Gmbh & Co Kg | PHOTOELECTRONIC MULTIPLIER |
| US4668890A (en) * | 1981-08-25 | 1987-05-26 | Commonwealth Scientific And Industrial Research Organization | Dynode structure and array for an electron multiplier |
| US4415832A (en) * | 1981-11-20 | 1983-11-15 | Rca Corporation | Electron multiplier having an improved planar utlimate dynode and planar anode structure for a photomultiplier tube |
| US4446401A (en) * | 1981-11-20 | 1984-05-01 | Rca Corporation | Photomultiplier tube having improved count-rate stability |
| US5656807A (en) * | 1995-09-22 | 1997-08-12 | Packard; Lyle E. | 360 degrees surround photon detector/electron multiplier with cylindrical photocathode defining an internal detection chamber |
-
1936
- 1936-11-20 US US111810A patent/US2160798A/en not_active Expired - Lifetime
- 1936-11-20 US US111808A patent/US2160796A/en not_active Expired - Lifetime
- 1936-11-20 US US111809A patent/US2160797A/en not_active Expired - Lifetime
- 1936-11-20 US US111796A patent/US2134718A/en not_active Expired - Lifetime
-
1937
- 1937-07-22 FR FR824648D patent/FR824648A/en not_active Expired
- 1937-08-26 US US160997A patent/US2236041A/en not_active Expired - Lifetime
- 1937-08-31 US US161747A patent/US2160799A/en not_active Expired - Lifetime
- 1937-11-12 GB GB31090/37A patent/GB500447A/en not_active Expired
- 1937-11-12 GB GB31091/37A patent/GB500448A/en not_active Expired
- 1937-11-19 GB GB31885/37A patent/GB505663A/en not_active Expired
- 1937-11-26 US US176566A patent/US2245605A/en not_active Expired - Lifetime
-
1938
- 1938-05-04 US US205931A patent/US2245624A/en not_active Expired - Lifetime
- 1938-07-14 GB GB20896/38A patent/GB500170A/en not_active Expired
- 1938-07-18 GB GB21222/38A patent/GB502528A/en not_active Expired
- 1938-07-26 FR FR49655D patent/FR49655E/en not_active Expired
- 1938-08-18 NL NL89371A patent/NL49799C/xx active
- 1938-11-14 FR FR49980D patent/FR49980E/fr not_active Expired
- 1938-11-16 DE DE1938W0003971 patent/DE886343C/en not_active Expired
- 1938-11-18 GB GB33529/38A patent/GB521077A/en not_active Expired
- 1938-11-23 CH CH208067D patent/CH208067A/en unknown
- 1938-11-26 BE BE431298D patent/BE431298A/xx unknown
-
1939
- 1939-05-01 CH CH214485D patent/CH214485A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB500170A (en) | 1939-02-03 |
| FR49980E (en) | 1939-09-29 |
| US2160798A (en) | 1939-05-30 |
| US2160797A (en) | 1939-05-30 |
| DE886343C (en) | 1953-08-13 |
| NL49799C (en) | 1941-01-15 |
| US2160796A (en) | 1939-05-30 |
| GB500448A (en) | 1939-02-09 |
| BE431298A (en) | 1939-01-31 |
| GB500447A (en) | 1939-02-09 |
| GB521077A (en) | 1940-05-10 |
| GB505663A (en) | 1939-05-16 |
| US2245605A (en) | 1941-06-17 |
| US2245624A (en) | 1941-06-17 |
| CH208067A (en) | 1939-12-31 |
| FR824648A (en) | 1938-02-14 |
| US2160799A (en) | 1939-05-30 |
| US2134718A (en) | 1938-11-01 |
| US2236041A (en) | 1941-03-25 |
| CH214485A (en) | 1941-04-30 |
| FR49655E (en) | 1939-05-30 |
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