CH362758A - Permanent magnetic focusing system for generating an at least approximately homogeneous magnetic field for the bundled guidance of the electron beam of a traveling wave tube - Google Patents

Permanent magnetic focusing system for generating an at least approximately homogeneous magnetic field for the bundled guidance of the electron beam of a traveling wave tube

Info

Publication number
CH362758A
CH362758A CH6151858A CH6151858A CH362758A CH 362758 A CH362758 A CH 362758A CH 6151858 A CH6151858 A CH 6151858A CH 6151858 A CH6151858 A CH 6151858A CH 362758 A CH362758 A CH 362758A
Authority
CH
Switzerland
Prior art keywords
generating
electron beam
traveling wave
wave tube
focusing system
Prior art date
Application number
CH6151858A
Other languages
German (de)
Inventor
Teunis De Wit Cornelis
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH362758A publication Critical patent/CH362758A/en

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
    • H01J23/087—Magnetic focusing arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0278—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles
    • 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
CH6151858A 1957-07-11 1958-07-08 Permanent magnetic focusing system for generating an at least approximately homogeneous magnetic field for the bundled guidance of the electron beam of a traveling wave tube CH362758A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL218874 1957-07-11

Publications (1)

Publication Number Publication Date
CH362758A true CH362758A (en) 1962-06-30

Family

ID=19750926

Family Applications (1)

Application Number Title Priority Date Filing Date
CH6151858A CH362758A (en) 1957-07-11 1958-07-08 Permanent magnetic focusing system for generating an at least approximately homogeneous magnetic field for the bundled guidance of the electron beam of a traveling wave tube

Country Status (6)

Country Link
US (1) US2956193A (en)
CH (1) CH362758A (en)
DE (1) DE1112790B (en)
FR (1) FR1211420A (en)
GB (1) GB865725A (en)
NL (2) NL218874A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3183398A (en) * 1960-08-04 1965-05-11 Raytheon Co Beam focusing magnet
US3164742A (en) * 1960-12-27 1965-01-05 Gen Electric High frequency energy interchange device
NL277862A (en) * 1961-05-02
US3283200A (en) * 1963-12-12 1966-11-01 Varian Associates High frequency electron discharge device having improved permanent magnetic focusing
DE1491426A1 (en) * 1964-08-12 1969-05-22 Siemens Ag Permanent magnet system for the bundled guidance of an electrode beam over a longer distance, especially for traveling field tubes
DE1491444B2 (en) * 1965-01-26 1972-04-06 Siemens AG, 1000 Berlin u 8000 München PERMANENT MAGNET SYSTEM FOR GENERATING A SIGNIFICANTLY HOMOGENOUS MAGNETIC FIELD FOR CONCENTRATED GUIDANCE OF AN ELECTRON BEAM OVER A LONGER DISTANCE, IN PARTICULAR FOR WALKING FIELD TUBES
US3349354A (en) * 1965-06-02 1967-10-24 Miyata Saburo Means for imposing electric and magnetic fields on flowing fluids
US3896329A (en) * 1972-09-21 1975-07-22 Varian Associates Permanent magnet beam focus structure for linear beam tubes
US5744910A (en) * 1993-04-02 1998-04-28 Litton Systems, Inc. Periodic permanent magnet focusing system for electron beam

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2825840A (en) * 1953-01-29 1958-03-04 Itt Traveling wave electron discharge devices
GB748946A (en) * 1953-03-26 1956-05-16 Standard Telephones Cables Ltd Improvements in or relating to travelling wave apparatus
US2844754A (en) * 1953-04-29 1958-07-22 Bell Telephone Labor Inc Electron beam focusing system
DE1098625B (en) * 1953-11-13 1961-02-02 Siemens Ag Magnetic bundling system for bundled guidance of one (several) electron flow (s) by means of a homogeneous magnetic field along a larger distance, especially for traveling wave tubes
NL200488A (en) * 1954-09-22
NL214979A (en) * 1956-03-01

Also Published As

Publication number Publication date
FR1211420A (en) 1960-03-16
DE1112790B (en) 1961-08-17
GB865725A (en) 1961-04-19
US2956193A (en) 1960-10-11
NL107303C (en)
NL218874A (en)

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