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GB1220630A - Improvements in electron guns - Google Patents

Improvements in electron guns

Info

Publication number
GB1220630A
GB1220630A GB37977/68A GB3797768A GB1220630A GB 1220630 A GB1220630 A GB 1220630A GB 37977/68 A GB37977/68 A GB 37977/68A GB 3797768 A GB3797768 A GB 3797768A GB 1220630 A GB1220630 A GB 1220630A
Authority
GB
United Kingdom
Prior art keywords
blanks
tool
aug
pair
erosion
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
GB37977/68A
Inventor
Donald Lee Winsor
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.)
Raytheon Co
Original Assignee
Raytheon Co
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 Raytheon Co filed Critical Raytheon Co
Publication of GB1220630A publication Critical patent/GB1220630A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
    • H01J25/04—Tubes having one or more resonators, without reflection of the electron stream, and in which the modulation produced in the modulator zone is mainly density modulation, e.g. Heaff tube
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/06—Electron or ion guns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/06—Electron or ion guns
    • H01J23/065—Electron or ion guns producing a solid cylindrical beam
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
    • H01J3/02—Electron guns
    • H01J3/029—Schematic arrangements for beam forming
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H01J2893/0022—Manufacture

Landscapes

  • Microwave Tubes (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Lasers (AREA)

Abstract

1,220,630. Arc-erosion. RAYTHEON CO. 8 Aug., 1968 [23 Aug., 1967], No. 37977/68. Heading B3V. [Also in Division H1] A pair of identical, parallel, grid electrodes for the electron gun of a discharge tube (see Division H1) are manufactured by arc erosion, using a carbon composition tool 122 axially movable towards a pair of pre-formed molybdenum grid blanks 104 and 106 which are spaced apart by a ceramic spacer 117. Oil is provided between the tool and the blanks, radially extending apertures being eroded successively in blanks 104 and 106 as the tool is moved downwards.
GB37977/68A 1967-08-23 1968-08-08 Improvements in electron guns Expired GB1220630A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66276667A 1967-08-23 1967-08-23

Publications (1)

Publication Number Publication Date
GB1220630A true GB1220630A (en) 1971-01-27

Family

ID=24659132

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37977/68A Expired GB1220630A (en) 1967-08-23 1968-08-08 Improvements in electron guns

Country Status (6)

Country Link
US (1) US3500110A (en)
JP (1) JPS4818024B1 (en)
DE (1) DE1764860B1 (en)
FR (1) FR1577744A (en)
GB (1) GB1220630A (en)
NL (1) NL141700B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117967A (en) * 1982-03-29 1983-10-19 Litton Systems Inc Dual-mode electron gun
GB2252446A (en) * 1988-03-24 1992-08-05 Hughes Aircraft Co Traveling-wave tube slow-wave structure with integral conductively-loaded barrel and method of making same
GB2333892A (en) * 1998-02-02 1999-08-04 Litton Systems Inc Grid support structure for an electron beam device
EP0957505A2 (en) * 1998-05-09 1999-11-17 Eev Limited Electron gun assembly
FR2853450A1 (en) * 2003-04-04 2004-10-08 Thales Sa ELECTRONIC TUBE ORDER GRID

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2210160C3 (en) * 1972-03-02 1975-04-30 Siemens Ag, 1000 Berlin Und 8000 Muenchen Electron gun system for time-of-flight tubes
IL43254A (en) * 1972-09-28 1976-02-29 Varian Ass Ciates Gridded electron gun employing a concave cathode emitter
US3852633A (en) * 1972-12-13 1974-12-03 Varian Associates Gridded electron gun
US3818260A (en) * 1973-03-05 1974-06-18 Sperry Rand Corp Electron gun with masked cathode and non-intercepting control grid
US3963955A (en) * 1974-04-15 1976-06-15 Varian Associates Means and method for suppressing oscillations in electron guns
DE2449796C3 (en) * 1974-10-19 1980-03-06 Philips Patentverwaltung Gmbh, 2000 Hamburg Supply cathode for a grid-controlled electron tube and process for their manufacture
US4583021A (en) * 1983-04-18 1986-04-15 Litton Systems, Inc. Electron gun with improved cathode and shadow grid configuration
JPS6079644A (en) * 1983-10-07 1985-05-07 Mitsubishi Electric Corp Electron gun for high power klystron
FR2561039B1 (en) * 1984-03-09 1987-04-03 Thomson Csf ELECTRON CANON FOR ELECTRONIC TUBE
US5623183A (en) * 1995-03-22 1997-04-22 Litton Systems, Inc. Diverging beam electron gun for a toxic remediation device with a dome-shaped focusing electrode
CN108666188B (en) * 2013-12-30 2020-06-12 Asml荷兰有限公司 Cathode arrangement, electron gun and lithography system comprising such an electron gun
JP7533658B1 (en) * 2023-03-15 2024-08-14 株式会社明電舎 Electron beam emission structure and field emission device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2811667A (en) * 1954-12-09 1957-10-29 Hughes Aircraft Co Electron gun
US2939993A (en) * 1957-01-07 1960-06-07 Gen Electric Traveling-wave tube attenuators
US3195006A (en) * 1960-04-08 1965-07-13 Varian Associates Travelling wave tube output coupling
US3278779A (en) * 1962-05-17 1966-10-11 Rauland Corp Cathode-ray tube having an insulating spacer between the cathode and the control grid
US3377492A (en) * 1965-08-03 1968-04-09 Hughes Aircraft Co Flood gun for storage tubes having a dome-shaped cathode and dome-shaped grid electrodes

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117967A (en) * 1982-03-29 1983-10-19 Litton Systems Inc Dual-mode electron gun
GB2252446A (en) * 1988-03-24 1992-08-05 Hughes Aircraft Co Traveling-wave tube slow-wave structure with integral conductively-loaded barrel and method of making same
GB2252446B (en) * 1988-03-24 1992-11-04 Hughes Aircraft Co Slow-wave structure with integral conductively-loaded barrel and method of making same
GB2333892A (en) * 1998-02-02 1999-08-04 Litton Systems Inc Grid support structure for an electron beam device
GB2333892B (en) * 1998-02-02 2002-12-18 Litton Systems Inc Grid support structure for an electron beam device
EP0957505A2 (en) * 1998-05-09 1999-11-17 Eev Limited Electron gun assembly
EP0957505A3 (en) * 1998-05-09 2002-07-31 Eev Limited Electron gun assembly
FR2853450A1 (en) * 2003-04-04 2004-10-08 Thales Sa ELECTRONIC TUBE ORDER GRID

Also Published As

Publication number Publication date
JPS4818024B1 (en) 1973-06-02
FR1577744A (en) 1969-08-08
DE1764860B1 (en) 1971-07-08
US3500110A (en) 1970-03-10
NL6811981A (en) 1969-02-25
NL141700B (en) 1974-03-15

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