GB502528A - Improvements in or relating to electron discharge devices utilising secondary emission - Google Patents

Improvements in or relating to electron discharge devices utilising secondary emission

Info

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
Application number
GB21222/38A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Electrical Research Products Inc filed Critical Electrical Research Products Inc
Publication of GB502528A publication Critical patent/GB502528A/en
Expired legal-status Critical Current

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

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.
GB21222/38A 1936-11-20 1938-07-18 Improvements in or relating to electron discharge devices utilising secondary emission Expired GB502528A (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US111809A US2160797A (en) 1936-11-20 1936-11-20 Electron discharge apparatus
US111810A US2160798A (en) 1936-11-20 1936-11-20 Electron discharge apparatus
US111796A US2134718A (en) 1936-11-20 1936-11-20 Electron discharge apparatus
US111808A US2160796A (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
GB31091/37A Expired GB500448A (en) 1936-11-20 1937-11-12 Improvements in or relating to electron discharge apparatus of the electron multiplier type
GB31090/37A Expired GB500447A (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
GB31091/37A Expired GB500448A (en) 1936-11-20 1937-11-12 Improvements in or relating to electron discharge apparatus of the electron multiplier type
GB31090/37A Expired GB500447A (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) GB500448A (en)
NL (1) NL49799C (en)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
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
FR1097688A (en) * 1954-02-25 1955-07-08 Bendix Aviat Corp Advanced 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
NL120346C (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
AU561469B2 (en) * 1981-08-25 1987-05-07 Commonwealth Scientific And Industrial Research Organisation Electron multiplier
US4446401A (en) * 1981-11-20 1984-05-01 Rca Corporation Photomultiplier tube having improved count-rate stability
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
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

Also Published As

Publication number Publication date
US2160796A (en) 1939-05-30
US2245624A (en) 1941-06-17
US2160798A (en) 1939-05-30
GB505663A (en) 1939-05-16
CH214485A (en) 1941-04-30
GB500448A (en) 1939-02-09
FR49980E (en) 1939-09-29
GB500447A (en) 1939-02-09
NL49799C (en) 1941-01-15
US2236041A (en) 1941-03-25
US2245605A (en) 1941-06-17
US2160797A (en) 1939-05-30
FR824648A (en) 1938-02-14
CH208067A (en) 1939-12-31
GB500170A (en) 1939-02-03
US2160799A (en) 1939-05-30
GB521077A (en) 1940-05-10
BE431298A (en) 1939-01-31
DE886343C (en) 1953-08-13
US2134718A (en) 1938-11-01
FR49655E (en) 1939-05-30

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