GB1083693A - Improvements in or relating to magnetic focussing arrangements of the kind comprising an electric beam discharge tube - Google Patents

Improvements in or relating to magnetic focussing arrangements of the kind comprising an electric beam discharge tube

Info

Publication number
GB1083693A
GB1083693A GB30806/65A GB3080665A GB1083693A GB 1083693 A GB1083693 A GB 1083693A GB 30806/65 A GB30806/65 A GB 30806/65A GB 3080665 A GB3080665 A GB 3080665A GB 1083693 A GB1083693 A GB 1083693A
Authority
GB
United Kingdom
Prior art keywords
collector
relating
discharge tube
electric beam
beam discharge
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
GB30806/65A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1083693A publication Critical patent/GB1083693A/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
    • H01J23/027—Collectors
    • H01J23/033—Collector cooling devices
    • 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
    • H01J23/0873—Magnetic focusing arrangements with at least one axial-field reversal along the interaction space, e.g. P.P.M. focusing

Landscapes

  • Microwave Tubes (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

1,083,693. Klystrons. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. July 20, 1965 [July 23, 1964], No. 30806/65. Heading H1D. A periodic focusing structure for a klystron contains radially magnetized permanent magnets 42 disposed between the cavities 33, 34, wherein the collector structure 32 has parts 46 of ferromagnetic material which are radially magnetized by induction by the adjacent magnet to produce a radial field 49 within the collector so that the beam is scattered over a larger surface of the collector. Cooling fins 44 of the same radius as the ferromagnetic parts 46 are provided on the collector.
GB30806/65A 1964-07-23 1965-07-20 Improvements in or relating to magnetic focussing arrangements of the kind comprising an electric beam discharge tube Expired GB1083693A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP0034741 1964-07-23

Publications (1)

Publication Number Publication Date
GB1083693A true GB1083693A (en) 1967-09-20

Family

ID=7373867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30806/65A Expired GB1083693A (en) 1964-07-23 1965-07-20 Improvements in or relating to magnetic focussing arrangements of the kind comprising an electric beam discharge tube

Country Status (3)

Country Link
US (1) US3394282A (en)
DE (1) DE1491387B1 (en)
GB (1) GB1083693A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162684A (en) * 1984-07-17 1986-02-05 Varian Associates Electron beam scrambler

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445714A (en) * 1965-10-19 1969-05-20 Nippon Electric Co Travelling-wave tube amplifier having asymmetric magnetomotive force within the collector for preventing backflow of secondary electrons
DE1541961B2 (en) * 1967-05-18 1972-02-17 Philips Patentverwaltung GmbH, 2000 Hair burg MULTI-CHAMBER KLYSTRON WITH A FOCUSING SYSTEM
GB1299649A (en) * 1969-12-02 1972-12-13 Philips Electronic Associated Klystron
US3700963A (en) * 1970-07-16 1972-10-24 Tokyo Shibaura Electric Co Microwave tube assembly
DE2333441C3 (en) * 1973-06-30 1975-12-18 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Lauffeldtube
GB1511093A (en) * 1976-02-05 1978-05-17 English Electric Valve Co Ltd Klystron amplifiers
JPS5842926B2 (en) * 1977-03-24 1983-09-22 日本電気株式会社 Microwave tube with permanent magnet type magnetic circuit
JPS5448151A (en) * 1977-09-22 1979-04-16 Nec Corp Straight-going beam type multi-cavity klystron
US4387323A (en) * 1980-12-15 1983-06-07 Varian Associates, Inc. Permanent magnet structure for linear-beam electron tubes
JPS58186138A (en) * 1982-04-26 1983-10-31 Toshiba Corp Klystron device
GB9005245D0 (en) * 1990-03-08 1990-05-02 Eev Ltd High frequency amplifying apparatus
US5780970A (en) * 1996-10-28 1998-07-14 University Of Maryland Multi-stage depressed collector for small orbit gyrotrons

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1241269A (en) * 1959-08-06 1960-09-16 Thomson Houston Comp Francaise Magnetic field generating device for electron beam tube
NL266512A (en) * 1960-09-20
FR1349442A (en) * 1962-12-07 1964-01-17 Thomson Houston Comp Francaise Electron beam tube and associated magnetic means
US3297907A (en) * 1963-06-13 1967-01-10 Varian Associates Electron tube with collector having magnetic field associated therewith, said field causing electron dispersion throughout the collector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162684A (en) * 1984-07-17 1986-02-05 Varian Associates Electron beam scrambler

Also Published As

Publication number Publication date
US3394282A (en) 1968-07-23
DE1491387B1 (en) 1970-07-30

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