FR2225834A1 - - Google Patents

Info

Publication number
FR2225834A1
FR2225834A1 FR7412551A FR7412551A FR2225834A1 FR 2225834 A1 FR2225834 A1 FR 2225834A1 FR 7412551 A FR7412551 A FR 7412551A FR 7412551 A FR7412551 A FR 7412551A FR 2225834 A1 FR2225834 A1 FR 2225834A1
Authority
FR
France
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.)
Granted
Application number
FR7412551A
Other languages
French (fr)
Other versions
FR2225834B1 (en
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates Inc
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 Varian Associates Inc filed Critical Varian Associates Inc
Publication of FR2225834A1 publication Critical patent/FR2225834A1/fr
Application granted granted Critical
Publication of FR2225834B1 publication Critical patent/FR2225834B1/fr
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
    • H01J23/06—Electron or ion guns
    • H01J23/065—Electron or ion guns producing a solid cylindrical beam
FR7412551A 1973-04-13 1974-04-10 Expired FR2225834B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00351065A US3832596A (en) 1973-04-13 1973-04-13 Magnetic structure for focusing of linear beams

Publications (2)

Publication Number Publication Date
FR2225834A1 true FR2225834A1 (en) 1974-11-08
FR2225834B1 FR2225834B1 (en) 1978-12-22

Family

ID=23379422

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7412551A Expired FR2225834B1 (en) 1973-04-13 1974-04-10

Country Status (6)

Country Link
US (1) US3832596A (en)
JP (1) JPS5052964A (en)
CA (1) CA1010144A (en)
DE (1) DE2417651A1 (en)
FR (1) FR2225834B1 (en)
GB (1) GB1462463A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4555646A (en) * 1981-10-07 1985-11-26 Varian Associates, Inc. Adjustable beam permanent-magnet-focused linear-beam microwave tube
US4593230A (en) * 1982-03-29 1986-06-03 Litton Systems, Inc. Dual-mode electron gun
JPS60168625A (en) * 1984-02-13 1985-09-02 Ekuseru Kk Manufacture of hollow molded article provided with composite material and manufacturing device thereof
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
US6777877B1 (en) * 2000-08-28 2004-08-17 Communication & Power Industries, Inc. Gun-only magnet used for a multi-stage depressed collector klystron
US6552490B1 (en) * 2000-05-18 2003-04-22 Communications And Power Industries Multiple stage depressed collector (MSDC) klystron based amplifier for ground based satellite and terrestrial communications
JP4805656B2 (en) * 2005-10-31 2011-11-02 株式会社東芝 Multi-beam klystron equipment
US7764020B2 (en) * 2006-07-20 2010-07-27 Barnett Larry R Electro-permanent magnet for power microwave tubes
US8723137B1 (en) * 2012-10-17 2014-05-13 Innosys, Inc Hybrid magnet for vacuum electronic device
CN113066708B (en) * 2021-03-22 2023-10-03 中国科学院空天信息创新研究院 Periodic permanent magnet focusing system and magnetic field adjusting method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL89376C (en) * 1950-06-17
US2774006A (en) * 1950-10-14 1956-12-11 Univ Leland Stanford Junior Travelling wave tube apparatus
US2701321A (en) * 1951-07-16 1955-02-01 Sperry Corp Adjustable magnetic focusing system for beam tubes
BE556363A (en) * 1954-09-16
US3155866A (en) * 1961-03-14 1964-11-03 Bell Telephone Labor Inc Magnetic focusing structure for traveling wave tubes
US3522469A (en) * 1968-04-12 1970-08-04 Varian Associates Magnetic beam focusing structure for a traveling wave tube employing magnetic shunts between the pole pieces and the emitter

Also Published As

Publication number Publication date
US3832596A (en) 1974-08-27
GB1462463A (en) 1977-01-26
CA1010144A (en) 1977-05-10
JPS5052964A (en) 1975-05-10
FR2225834B1 (en) 1978-12-22
DE2417651A1 (en) 1974-10-24

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Legal Events

Date Code Title Description
ST Notification of lapse