[go: up one dir, main page]

GB470026A - Improvements in or relating to electron discharge devices - Google Patents

Improvements in or relating to electron discharge devices

Info

Publication number
GB470026A
GB470026A GB3932/36A GB393236A GB470026A GB 470026 A GB470026 A GB 470026A GB 3932/36 A GB3932/36 A GB 3932/36A GB 393236 A GB393236 A GB 393236A GB 470026 A GB470026 A GB 470026A
Authority
GB
United Kingdom
Prior art keywords
electron
source
cathode
anode
relating
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
GB3932/36A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB3932/36A priority Critical patent/GB470026A/en
Priority to DEM137107D priority patent/DE751111C/en
Priority to US124702A priority patent/US2227062A/en
Publication of GB470026A publication Critical patent/GB470026A/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

Landscapes

  • Electron Sources, Ion Sources (AREA)
  • X-Ray Techniques (AREA)

Abstract

470,026. Electron multipliers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and BRETT, G. F. Feb. 8, 1936, No. 3932. [Class 39 (i)] An electron multiplier has in cascade a number of electron sources one of which is a primary source and the others are secondary emitting, each source forming part of an electron gun. As shown, each source consists of electron emitting material arranged at the bottom of a rectangular depression or pocket C<1>, C<2>, C<3> formed in or behind an apertured plate, which is mounted closely behind an apertured anode AA<1>, AA<2>, AA<3> respectively. The primary source C<1> may be thermionic or photo-electric. The output electrode A is in the same plane as the plates of the cathodes. Increasing potentials are applied to the guns and to the output electrode. In a modification an apertured plate is arranged between each cathode and anode and is either connected directly with the cathode or forms a control electrode.
GB3932/36A 1936-02-08 1936-02-08 Improvements in or relating to electron discharge devices Expired GB470026A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB3932/36A GB470026A (en) 1936-02-08 1936-02-08 Improvements in or relating to electron discharge devices
DEM137107D DE751111C (en) 1936-02-08 1937-02-07 Row multiplier
US124702A US2227062A (en) 1936-02-08 1937-02-08 Electron discharge device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3932/36A GB470026A (en) 1936-02-08 1936-02-08 Improvements in or relating to electron discharge devices

Publications (1)

Publication Number Publication Date
GB470026A true GB470026A (en) 1937-08-09

Family

ID=9767594

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3932/36A Expired GB470026A (en) 1936-02-08 1936-02-08 Improvements in or relating to electron discharge devices

Country Status (3)

Country Link
US (1) US2227062A (en)
DE (1) DE751111C (en)
GB (1) GB470026A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR959703A (en) * 1941-07-08 1950-04-04
FR959706A (en) * 1941-07-25 1950-04-04
DE879426C (en) * 1942-11-11 1953-06-11 Bosch Gmbh Robert Space-enclosing electrode, e.g. B. box electrode, for electron multipliers
US2473031A (en) * 1945-04-14 1949-06-14 Farnsworth Res Corp Electron multiplier for ultra high frequencies

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1450265A (en) * 1919-04-18 1923-04-03 Westinghouse Electric & Mfg Co Hot-cathode tube
GB443777A (en) * 1934-07-05 1936-03-05 James Dwyer Mcgee Electron discharge amplifiers

Also Published As

Publication number Publication date
DE751111C (en) 1952-07-07
US2227062A (en) 1940-12-31

Similar Documents

Publication Publication Date Title
GB441250A (en) Improvements in and relating to oxide coated cathodes for gaseous electric discharge devices
GB470026A (en) Improvements in or relating to electron discharge devices
GB498843A (en) Improvements in or relating to electron multiplier discharge devices
GB471672A (en) Improvements in or relating to electron discharge devices
GB481012A (en) Improvements in and relating to devices utilising secondary electron emission
GB514297A (en) Improvements in or relating to electron multipliers and circuits therefor
GB488661A (en) Improvements in electron multipliers working as oscillators or amplifiers
GB629881A (en) Improvements in electric discharge tubes comprising secondary emission electrodes
GB498566A (en) Improvements in electron multipliers
GB499649A (en) Improvements in or relating to electron multipliers
GB469283A (en) Improvements in or relating to secondary emission electron multipliers
GB518553A (en) Improvements in electron multipliers
GB478001A (en) Improvements in or relating to electron discharge devices
GB482026A (en) Electron multiplier
GB496564A (en) Improvements in or relating to electron multipliers
GB474084A (en) Improvements in or relating to electron discharge devices
GB470102A (en) Improvements in or relating to electron discharge devices
GB469899A (en) Improvements in or relating to electron discharge devices
GB493801A (en) Improvements in electron multipliers
GB534474A (en) Improvements in or relating to electron multipliers
GB538321A (en) Improvements in or relating to photo-electric cells utilising electron multiplication
GB493907A (en) Improvements in or relating to thermionic valves
GB469111A (en) Improvements in or relating to electron discharge apparatus
GB475106A (en) Improvements in or relating to electron discharge devices
GB738120A (en) Secondary emitting electrode