GB610662A - Electron multiplier for ultra-high frequencies - Google Patents

Electron multiplier for ultra-high frequencies

Info

Publication number
GB610662A
GB610662A GB11356/46A GB1135646A GB610662A GB 610662 A GB610662 A GB 610662A GB 11356/46 A GB11356/46 A GB 11356/46A GB 1135646 A GB1135646 A GB 1135646A GB 610662 A GB610662 A GB 610662A
Authority
GB
United Kingdom
Prior art keywords
high frequencies
electron multiplier
electron
ultra
april
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
GB11356/46A
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.)
Farnsworth Television and Radio Corp
Original Assignee
Farnsworth Television and Radio Corp
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 Farnsworth Television and Radio Corp filed Critical Farnsworth Television and Radio Corp
Publication of GB610662A publication Critical patent/GB610662A/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
    • H01J43/08—Cathode arrangements

Landscapes

  • Electron Sources, Ion Sources (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

610,662. Electron multipliers. FARNSWORTH TELEVISION & RADIO CORPORATION. April 12, 1946, No. 11356. Convention date, April 14, 1945. [Class 39 (i)] An electron multiplier is provided with velocity selectors so that electron transit time is uniform; this enables the device to be employed at high frequencies. In Fig. 3, the coil 21 provides a magnetic field and the apertured discs 33 ... 37 act as velocity selectors; only electrons within a predetermined narrow range of velocities are able to pass through the apertures in the discs. The cathode may be thermionic, as in the Figure, or photo-electric.
GB11356/46A 1945-04-14 1946-04-12 Electron multiplier for ultra-high frequencies Expired GB610662A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US588315A US2473031A (en) 1945-04-14 1945-04-14 Electron multiplier for ultra high frequencies

Publications (1)

Publication Number Publication Date
GB610662A true GB610662A (en) 1948-10-19

Family

ID=24353340

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11356/46A Expired GB610662A (en) 1945-04-14 1946-04-12 Electron multiplier for ultra-high frequencies

Country Status (2)

Country Link
US (1) US2473031A (en)
GB (1) GB610662A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772368A (en) * 1951-08-10 1956-11-27 Perforating Guns Atlas Corp High temperature scintillometer
US2836360A (en) * 1954-12-20 1958-05-27 Bendix Aviat Corp Pulse counter
US2836760A (en) * 1955-03-08 1958-05-27 Egyesuelt Izzolampa Electron multiplier
US3011086A (en) * 1957-11-29 1961-11-28 Applied Radiation Corp Means for selecting electron beam energy
US2983845A (en) * 1959-05-07 1961-05-09 Bendix Corp Electron multiplier spurious noise baffle
US3010017A (en) * 1959-06-01 1961-11-21 Cons Electrodynamics Corp Mass spectrometer
US3839674A (en) * 1970-07-04 1974-10-01 Philips Corp Device for measuring very small electric currents

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1903569A (en) * 1926-09-15 1933-04-11 Kenneth W Jarvis Electron tube
US2138928A (en) * 1935-10-16 1938-12-06 Emi Ltd Electron discharge device
GB470026A (en) * 1936-02-08 1937-08-09 Marconi Wireless Telegraph Co Improvements in or relating to electron discharge devices
DE687178C (en) * 1936-02-11 1940-01-27 Fernseh Gmbh Multi-stage secondary electron amplifier with electron-permeable auxiliary electrode between two successive triggering electrodes
GB498843A (en) * 1937-07-15 1939-01-16 Marconi Wireless Telegraph Co Improvements in or relating to electron multiplier discharge devices

Also Published As

Publication number Publication date
US2473031A (en) 1949-06-14

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