GB974765A - Improvements relating to electron beam tubes - Google Patents

Improvements relating to electron beam tubes

Info

Publication number
GB974765A
GB974765A GB686261A GB686261A GB974765A GB 974765 A GB974765 A GB 974765A GB 686261 A GB686261 A GB 686261A GB 686261 A GB686261 A GB 686261A GB 974765 A GB974765 A GB 974765A
Authority
GB
United Kingdom
Prior art keywords
tube
helical path
electron beam
travelling
feb
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
GB686261A
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Publication of GB974765A publication Critical patent/GB974765A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/083—Electrostatic focusing arrangements

Landscapes

  • Particle Accelerators (AREA)
  • Electron Beam Exposure (AREA)

Abstract

974,765. Travelling-wave tubes. TELEFUNKEN A.G. Feb. 24, 1961 [Feb. 24, 1960], No. 6862/61. Heading H1D. In an electron beam tube with a periodic focusing system which is non-rotationally symmetrical about the axis of the tube, thus causing the beam to follow a helical path, e.g. a travelling-wave tube with interleaved helices 4, 5 which also serve as the delay line, the electron gun 8 is radially offset, or inclined, or both offset and inclined to direct the beam to a point on the helical path which the beam is caused to follow. Alternatively, the gum may be coaxial with the tube and the beam directed on to the helical path by an electrode diaphragm positioned between the gun and the boundary plane 7.
GB686261A 1960-02-24 1961-02-24 Improvements relating to electron beam tubes Expired GB974765A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1960T0017930 DE1295097B (en) 1960-02-24 1960-02-24 Time-of-flight tube with a non-rotationally symmetrical, periodic focusing arrangement for bundled guidance of the electron beam

Publications (1)

Publication Number Publication Date
GB974765A true GB974765A (en) 1964-11-11

Family

ID=7548766

Family Applications (1)

Application Number Title Priority Date Filing Date
GB686261A Expired GB974765A (en) 1960-02-24 1961-02-24 Improvements relating to electron beam tubes

Country Status (2)

Country Link
DE (1) DE1295097B (en)
GB (1) GB974765A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492158A1 (en) * 1980-09-05 1982-04-16 Varian Associates ELECTRON TUBE FOR GYROTRON
GB2152741A (en) * 1980-04-28 1985-08-07 Emi Varian Ltd Producing an electron beam

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT193440B (en) * 1955-06-10 1957-11-25 Western Electric Co Focusing system for a charged particle beam

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152741A (en) * 1980-04-28 1985-08-07 Emi Varian Ltd Producing an electron beam
FR2492158A1 (en) * 1980-09-05 1982-04-16 Varian Associates ELECTRON TUBE FOR GYROTRON

Also Published As

Publication number Publication date
DE1295097B (en) 1969-05-14

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