FR1481931A - Adjustable Convergence Permanent Magnet Multipolar Magnetic Lens - Google Patents

Adjustable Convergence Permanent Magnet Multipolar Magnetic Lens

Info

Publication number
FR1481931A
FR1481931A FR28452A FR28452A FR1481931A FR 1481931 A FR1481931 A FR 1481931A FR 28452 A FR28452 A FR 28452A FR 28452 A FR28452 A FR 28452A FR 1481931 A FR1481931 A FR 1481931A
Authority
FR
France
Prior art keywords
permanent magnet
magnetic lens
multipolar magnetic
adjustable convergence
magnet multipolar
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
FR28452A
Other languages
French (fr)
Inventor
Claude Audoin
Albert Septier
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.)
Centre National de la Recherche Scientifique CNRS
Original Assignee
Centre National de la Recherche Scientifique CNRS
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 Centre National de la Recherche Scientifique CNRS filed Critical Centre National de la Recherche Scientifique CNRS
Priority to FR28452A priority Critical patent/FR1481931A/en
Priority to CH1168966A priority patent/CH435475A/en
Priority to GB3639966A priority patent/GB1135249A/en
Priority to DE19661539799 priority patent/DE1539799B1/en
Application granted granted Critical
Publication of FR1481931A publication Critical patent/FR1481931A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/08—Deviation, concentration or focusing of the beam by electric or magnetic means
    • G21K1/093—Deviation, concentration or focusing of the beam by electric or magnetic means by magnetic means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • H01J29/64—Magnetic lenses
    • H01J29/68—Magnetic lenses using permanent magnets only

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Particle Accelerators (AREA)
FR28452A 1965-08-16 1965-08-16 Adjustable Convergence Permanent Magnet Multipolar Magnetic Lens Expired FR1481931A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR28452A FR1481931A (en) 1965-08-16 1965-08-16 Adjustable Convergence Permanent Magnet Multipolar Magnetic Lens
CH1168966A CH435475A (en) 1965-08-16 1966-08-12 Adjustable Convergence Permanent Magnet Multipolar Magnetic Lens
GB3639966A GB1135249A (en) 1965-08-16 1966-08-15 Improvements relating to multiple magnetic lenses
DE19661539799 DE1539799B1 (en) 1965-08-16 1966-08-16 Multipole magnetic lens with permanent magnets and with an even number 2 N of pole pieces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR28452A FR1481931A (en) 1965-08-16 1965-08-16 Adjustable Convergence Permanent Magnet Multipolar Magnetic Lens

Publications (1)

Publication Number Publication Date
FR1481931A true FR1481931A (en) 1967-05-26

Family

ID=8586711

Family Applications (1)

Application Number Title Priority Date Filing Date
FR28452A Expired FR1481931A (en) 1965-08-16 1965-08-16 Adjustable Convergence Permanent Magnet Multipolar Magnetic Lens

Country Status (4)

Country Link
CH (1) CH435475A (en)
DE (1) DE1539799B1 (en)
FR (1) FR1481931A (en)
GB (1) GB1135249A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3321117A1 (en) * 1983-06-10 1984-12-13 Siemens AG, 1000 Berlin und 8000 München MAGNETIC MULTIPOLE N-TERM ORDER

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2928004A (en) * 1954-08-27 1960-03-08 Hitachi Ltd Three stage electron lens system excited by permanent magnets

Also Published As

Publication number Publication date
CH435475A (en) 1967-05-15
DE1539799B1 (en) 1970-10-22
GB1135249A (en) 1968-12-04

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