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FR2382756A1 - Electromagnetic system to produce continuous magnetic field - is fitted in air gap forming magnetic lens - Google Patents

Electromagnetic system to produce continuous magnetic field - is fitted in air gap forming magnetic lens

Info

Publication number
FR2382756A1
FR2382756A1 FR7706547A FR7706547A FR2382756A1 FR 2382756 A1 FR2382756 A1 FR 2382756A1 FR 7706547 A FR7706547 A FR 7706547A FR 7706547 A FR7706547 A FR 7706547A FR 2382756 A1 FR2382756 A1 FR 2382756A1
Authority
FR
France
Prior art keywords
air gap
fitted
magnetic field
gap forming
electromagnetic system
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.)
Granted
Application number
FR7706547A
Other languages
French (fr)
Other versions
FR2382756B1 (en
Inventor
Jean-Louis Balladore
Robert Fourmaux
Robert Murillo
Claude Tremollieres
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.)
Bpifrance Financement SA
Original Assignee
Agence National de Valorisation de la Recherche ANVAR
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 Agence National de Valorisation de la Recherche ANVAR filed Critical Agence National de Valorisation de la Recherche ANVAR
Priority to FR7706547A priority Critical patent/FR2382756A1/en
Publication of FR2382756A1 publication Critical patent/FR2382756A1/en
Application granted granted Critical
Publication of FR2382756B1 publication Critical patent/FR2382756B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/20—Electromagnets; Actuators including electromagnets without armatures
    • H01F7/202—Electromagnets for high magnetic field strength
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/02—Cores, Yokes, or armatures made from sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/06—Cores, Yokes, or armatures made from wires

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electron Beam Exposure (AREA)

Abstract

The system comprises of two pole pieces of high magnetic permeability with an air gap between them, the pole pieces being joined together by a laminated anisotropic magnetic circuit. The permeability is a max. in the direction of the lines of magnetic field force, each lamina being parallel to the lines of force. The system has partic. applications to magnetic lenses and electronic magnetic lenses, in which the air gap is a function of the focalisation of a beam of electrons.
FR7706547A 1977-03-01 1977-03-01 Electromagnetic system to produce continuous magnetic field - is fitted in air gap forming magnetic lens Granted FR2382756A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7706547A FR2382756A1 (en) 1977-03-01 1977-03-01 Electromagnetic system to produce continuous magnetic field - is fitted in air gap forming magnetic lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7706547A FR2382756A1 (en) 1977-03-01 1977-03-01 Electromagnetic system to produce continuous magnetic field - is fitted in air gap forming magnetic lens

Publications (2)

Publication Number Publication Date
FR2382756A1 true FR2382756A1 (en) 1978-09-29
FR2382756B1 FR2382756B1 (en) 1981-09-04

Family

ID=9187640

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7706547A Granted FR2382756A1 (en) 1977-03-01 1977-03-01 Electromagnetic system to produce continuous magnetic field - is fitted in air gap forming magnetic lens

Country Status (1)

Country Link
FR (1) FR2382756A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192331A1 (en) * 1985-01-21 1986-08-27 Frank Elsden Neale Electromagnet
EP0631358A2 (en) * 1992-02-28 1994-12-28 Nissin Electric Company, Limited Device for producing magnetic fields in working gaps useful for irradiating a surface with atomic and molecular ions

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192331A1 (en) * 1985-01-21 1986-08-27 Frank Elsden Neale Electromagnet
US5483077A (en) * 1990-08-29 1996-01-09 Nissin Electric Co., Ltd. System and method for magnetic scanning, accelerating, and implanting of an ion beam
EP0631358A2 (en) * 1992-02-28 1994-12-28 Nissin Electric Company, Limited Device for producing magnetic fields in working gaps useful for irradiating a surface with atomic and molecular ions
EP0631358A3 (en) * 1992-02-28 1995-08-02 Nissin Electric Co Ltd Producing magnetic fields in working gaps useful for irradiating a surface with atomic and molecular ions.

Also Published As

Publication number Publication date
FR2382756B1 (en) 1981-09-04

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Legal Events

Date Code Title Description
ST Notification of lapse