NL298777A - - Google Patents

Info

Publication number
NL298777A
NL298777A NL298777DA NL298777A NL 298777 A NL298777 A NL 298777A NL 298777D A NL298777D A NL 298777DA NL 298777 A NL298777 A NL 298777A
Authority
NL
Netherlands
Application number
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.)
Publication date
Publication of NL298777A publication Critical patent/NL298777A/xx

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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Particle Accelerators (AREA)
  • Microwave Tubes (AREA)
NL298777D 1962-10-04 NL298777A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES81889A DE1298646B (de) 1962-10-04 1962-10-04 Permanentmagnetisches Fokussierungssystem zur Erzeugung eines wenigstens angenaehert homogenen Magnetfeldes fuer die gebuendelte Fuehrung eines Elektronenstrahls ueber eine groessere Wegstrecke, insbesondere fuer Wanderfeldroehren

Publications (1)

Publication Number Publication Date
NL298777A true NL298777A (fr) 1900-01-01

Family

ID=7509982

Family Applications (2)

Application Number Title Priority Date Filing Date
NL133615D NL133615C (fr) 1962-10-04
NL298777D NL298777A (fr) 1962-10-04

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL133615D NL133615C (fr) 1962-10-04

Country Status (6)

Country Link
US (1) US3237059A (fr)
DE (1) DE1298646B (fr)
DK (1) DK103681C (fr)
GB (1) GB1039576A (fr)
NL (2) NL298777A (fr)
SE (1) SE319241B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0210120A1 (fr) * 1985-05-23 1987-01-28 Siemens Aktiengesellschaft Aimant d'un tomographe à résonance magnétique nucléaire

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1491444B2 (de) * 1965-01-26 1972-04-06 Siemens AG, 1000 Berlin u 8000 München Permanentmagnetsystem zur erzeugung eines im wesentlichen homogenen magnetfeldes fuer die gebuendelte fuehrung eines elektronenstrahls ueber eine laengere wegstrecke, insbesondere fuer wanderfeldroehren
US3686527A (en) * 1969-12-12 1972-08-22 Sanders Associates Inc High-speed synthesized field focus coil
US4433270A (en) * 1980-01-28 1984-02-21 Drozdov Sergei S Reversible periodic magnetic focusing system
US4720692A (en) * 1984-10-24 1988-01-19 The United States Of America As Represented By The Secretary Of The Air Force Long, narrow, uniform magnetic field apparatus and method
US4647887A (en) * 1984-12-24 1987-03-03 The United States Of America As Represented By The Secretary Of The Army Lightweight cladding for magnetic circuits
US4614930A (en) * 1985-03-25 1986-09-30 General Electric Company Radially magnetized cylindrical magnet
US4658228A (en) * 1986-05-01 1987-04-14 The United States Of America As Represented By The Secreatry Of The Army Confinement of longitudinal, axially symmetric, magnetic fields to annular regions with permanent magnets
US4654618A (en) * 1986-05-01 1987-03-31 The United States Of America As Represented By The Secretary Of The Army Confinement of kOe magnetic fields to very small areas in miniature devices
US4701737A (en) * 1986-05-30 1987-10-20 The United States Of America As Represented By The Secretary Of The Army Leakage-free, linearly varying axial permanent magnet field source
FR2605451B1 (fr) * 1986-10-17 1993-12-24 Thomson Cgr Aimant permanent cylindrique a champ induit longitudinal
FR2605452B1 (fr) * 1986-10-17 1988-12-02 Thomson Cgr Aimant permanent spherique a acces equatorial
FR2605450B1 (fr) * 1986-10-17 1988-12-02 Thomson Cgr Aimant permanent cylindrique pour produire un champ d'induction uniforme et transverse
US4953555A (en) * 1987-10-20 1990-09-04 The United States Of Americas As Represented By The Secretary Of The Army Permanent magnet structure for a nuclear magnetic resonance imager for medical diagnostics
JP2826895B2 (ja) * 1990-09-19 1998-11-18 ティーディーケイ株式会社 永久磁石磁気回路
US5319339A (en) * 1993-03-08 1994-06-07 The United States Of America As Represented By The Secretary Of The Army Tubular structure having transverse magnetic field with gradient
DE4424230C2 (de) * 1994-07-09 1996-08-14 Karlsruhe Forschzent Magnetsystem für Gyrotrons
US5576679A (en) * 1994-10-25 1996-11-19 Shin-Etsu Chemical Co., Ltd. Cylindrical permanent magnet unit suitable for gyrotron
US5786741A (en) * 1995-12-21 1998-07-28 Aura Systems, Inc. Polygon magnet structure for voice coil actuator
US5929732A (en) * 1997-04-17 1999-07-27 Lockheed Martin Corporation Apparatus and method for amplifying a magnetic beam
KR100682661B1 (ko) * 2005-09-13 2007-02-15 엘지전자 주식회사 모터 및 상기 모터를 포함하는 세탁기
US8179220B2 (en) * 2008-05-28 2012-05-15 Otto Voegeli Confined field magnet system and method
CN105047355A (zh) * 2015-08-12 2015-11-11 中国科学院电工研究所 一种用于聚焦和引导电子束的圆筒形永磁体系统
US11448715B2 (en) * 2018-09-03 2022-09-20 Singapore University Of Technology And Design Permanent magnet system and method of forming thereof
US11875937B2 (en) * 2018-11-29 2024-01-16 Epsitau Ltd. Lightweight asymmetric array of magnet elements
RU206633U1 (ru) * 2020-01-28 2021-09-20 Акционерное общество "Научно-производственное предприятие "Исток" имени А.И. Шокина" (АО "НПП "Исток" им. Шокина") Магнитная фокусирующая система

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE725473C (de) * 1935-07-23 1942-10-08 Fernseh Gmbh Elektronensammelspule
FR1105964A (fr) * 1954-06-03 1955-12-09 Csf Perfectionnement aux aimants permanents
NL214979A (fr) * 1956-03-01

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0210120A1 (fr) * 1985-05-23 1987-01-28 Siemens Aktiengesellschaft Aimant d'un tomographe à résonance magnétique nucléaire
US4706057A (en) * 1985-05-23 1987-11-10 Siemens Aktiengesellschaft Magnet of a nuclear spin tomograph

Also Published As

Publication number Publication date
NL133615C (fr)
SE319241B (fr) 1970-01-12
US3237059A (en) 1966-02-22
DK103681C (da) 1966-02-07
DE1298646B (de) 1969-07-03
GB1039576A (en) 1966-08-17

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