GB875979A - Improvements in or relating to means for positioning electron beams in electron discharge devices - Google Patents

Improvements in or relating to means for positioning electron beams in electron discharge devices

Info

Publication number
GB875979A
GB875979A GB20635/60A GB2063560A GB875979A GB 875979 A GB875979 A GB 875979A GB 20635/60 A GB20635/60 A GB 20635/60A GB 2063560 A GB2063560 A GB 2063560A GB 875979 A GB875979 A GB 875979A
Authority
GB
United Kingdom
Prior art keywords
parts
helix
tube
surrounding
travelling wave
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
GB20635/60A
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 GB875979A publication Critical patent/GB875979A/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
    • 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
    • H01J23/087—Magnetic focusing arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/54—Arrangements for centring ray or beam

Landscapes

  • Microwave Tubes (AREA)

Abstract

875,979. Travelling wave tubes. TELEFUNKEN G.m.b.H. June 13, 1960 [June 11, 1959], No. 20635/60. Class 39(1). An electron beam is positioned in a travelling wave or other electron beam tube -by a permanently magnetised or magnetisable member disposed in the vicinity of means for producing a magnetic focusing field the member surrounding the tube envelope and being formed in a plurality of parts the boundaries between the parts being in the axial direction of the beam the parts being relatively movable axially and are movable together around the periphery of the envelope. As shown the positioning means comprises two semi-cylinders 5, 6, Fig. 2 surrounding the gun of the travelling wave tube which has a helix slow wave structure. The semicylinders are magnetised by the fringe field of the focusing coil surrounding the helix and centre the beam on the axis of the helix. The ferromagnetic member may be in more than two parts.
GB20635/60A 1959-06-11 1960-06-13 Improvements in or relating to means for positioning electron beams in electron discharge devices Expired GB875979A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET16803A DE1090777B (en) 1959-06-11 1959-06-11 Magnetic correction device for electron beam tubes, especially traveling wave tubes

Publications (1)

Publication Number Publication Date
GB875979A true GB875979A (en) 1961-08-30

Family

ID=7548357

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20635/60A Expired GB875979A (en) 1959-06-11 1960-06-13 Improvements in or relating to means for positioning electron beams in electron discharge devices

Country Status (3)

Country Link
US (1) US3052808A (en)
DE (1) DE1090777B (en)
GB (1) GB875979A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114005720A (en) * 2021-11-09 2022-02-01 北京航空航天大学 Terahertz traveling wave tube slow wave focusing integrated structure and manufacturing method thereof

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1277450B (en) * 1962-09-22 1968-09-12 Telefunken Patent Permanent magnetic focusing system for the bundled guidance of the electron beam of a traveling wave tube
US3331984A (en) * 1963-01-22 1967-07-18 Varian Associates Magnetic field shaping cylinder for confined flow electron guns
US3497745A (en) * 1967-02-20 1970-02-24 Zenith Radio Corp Alignment magnet for cathode-ray tube
US3887830A (en) * 1973-09-07 1975-06-03 Raytheon Co Cathode ray tube with magnetic beam alignment means
JPS5868846A (en) * 1981-10-07 1983-04-23 バリアン・アソシエイツ・インコ−ポレイテツド Linear beam microwave tube focused by permanent magnet
FR2641899A1 (en) * 1989-01-17 1990-07-20 Thomson Tubes Electroniques ELECTRON GUN WITH AN ACTIVE DEVICE PRODUCING A MAGNETIC FIELD IN THE VICINITY OF THE CATHODE
CN114846573A (en) * 2019-12-03 2022-08-02 Nec网络和传感器***株式会社 Microwave tube and method for controlling microwave tube

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2188579A (en) * 1933-05-27 1940-01-30 Loewe Radio Inc Cathode ray tube, more particularly for television purposes
US2442975A (en) * 1943-08-31 1948-06-08 Rca Corp Focusing system
US2431077A (en) * 1943-08-31 1947-11-18 Rca Corp Cathode-ray tube with revolving magnets and adjustable sleeve
NL182200B (en) * 1952-10-25 Rustenburg Platinum Mines Ltd PROCESS FOR THE PREPARATION OF A MEDICINAL PRODUCT FOR THE TREATMENT OF CANCER BASED ON A PLATINACO INATION COMPOUND AND PROCEDURE FOR PREPARING THE ACTIVE COMPOUND.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114005720A (en) * 2021-11-09 2022-02-01 北京航空航天大学 Terahertz traveling wave tube slow wave focusing integrated structure and manufacturing method thereof

Also Published As

Publication number Publication date
US3052808A (en) 1962-09-04
DE1090777B (en) 1960-10-13

Similar Documents

Publication Publication Date Title
GB754563A (en) Arrangement for magnetic concentration of an electron beam in a travelling wave tube
GB875979A (en) Improvements in or relating to means for positioning electron beams in electron discharge devices
GB854913A (en) Deflection yokes for cathode-ray tubes
GB934661A (en) Improvements in and relating to cathode ray tubes
GB785110A (en) Electron tube magnetic focusing device
GB1178406A (en) Electron Gun Including an Ion Trap.
GB945610A (en) Velocity modulated discharge devices with magnetic beam focusing
GB834958A (en) Improvements in or relating to magnetic focusing systems for travelling wave tubes
GB849565A (en) Ion source using a high frequency field
ES463367A1 (en) Device for the magnetic deflection of electron beams
GB987024A (en) A magnetic focussing device for an electron tube
GB774401A (en) Improvements in or relating to magnetic scanning circuits for cathode-ray tubes and the like
GB1049920A (en) High frequency electron discharge device having improved permanent magnetic focusing
GB945553A (en) Improvements in or relating to high frequency parametric amplifiers
GB908590A (en) Charged particle gun
GB828043A (en) Deflection yoke core for cathode ray tubes
GB920717A (en) Improvements relating to electron discharge devices
GB792020A (en) Improvements in or relating to the magnetic focusing of electron beams
GB899928A (en) Improvements in or relating to travelling-wave tubes and slow-wave structures therefor
GB845000A (en) Traveiling-wave tubes
GB735259A (en) Magnetic deflection system for cathode ray tubes
GB885251A (en) Improvements in permanent magnet systems
GB922532A (en) Magnetic focusing systems for travelling-wave tubes
GB818563A (en) Improvements in or relating to electromagnetic deflection systems
GB918731A (en) Magnetic-focusing systems for travelling-wave tubes