JPS6459199A - Deflection magnet - Google Patents

Deflection magnet

Info

Publication number
JPS6459199A
JPS6459199A JP21729187A JP21729187A JPS6459199A JP S6459199 A JPS6459199 A JP S6459199A JP 21729187 A JP21729187 A JP 21729187A JP 21729187 A JP21729187 A JP 21729187A JP S6459199 A JPS6459199 A JP S6459199A
Authority
JP
Japan
Prior art keywords
pole pieces
magnetic
permanent magnet
magnetic yoke
constitution
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.)
Pending
Application number
JP21729187A
Other languages
Japanese (ja)
Inventor
Eiji Nukanobu
Hiroyuki Naito
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments and Electronics 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 Seiko Instruments and Electronics Ltd filed Critical Seiko Instruments and Electronics Ltd
Priority to JP21729187A priority Critical patent/JPS6459199A/en
Publication of JPS6459199A publication Critical patent/JPS6459199A/en
Pending legal-status Critical Current

Links

Landscapes

  • Particle Accelerators (AREA)

Abstract

PURPOSE:To enable a beam deflection without utilizing an exclusive power supply and a cooling device, by placing a permanent magnet, a movable magnetic yoke and circular pole pieces within orbits of an ion beam and an electron beam. CONSTITUTION:A pair of pole pieces 1 are placed facing each other across a central orbit of a beam 5, permanent magnets 2 are placed as to place the pole pieces 1 between the magnets, magnetic yokes 3 serving also as a part of a vacuum duct are placed as to place the pole pieces 1 and the permanent magnet 2 between the yokes 3 and finally a movable magnetic yoke 4 is placed at a position that supplements the magnetic circuit by the permanent magnets. In this constitution, a circular and uniform magnetic field generates at a gap between the pole pieces. Furthermore, by moving the movable magnetic yoke 4, a resistance of a magnetic circuit consisting of the pole pieces 1, the permanent magnet 2 and the magnetic yoke 3 changes and an intensity of a magnetic field changes continuously so that beams having different kinetic energy can be deflected.
JP21729187A 1987-08-31 1987-08-31 Deflection magnet Pending JPS6459199A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21729187A JPS6459199A (en) 1987-08-31 1987-08-31 Deflection magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21729187A JPS6459199A (en) 1987-08-31 1987-08-31 Deflection magnet

Publications (1)

Publication Number Publication Date
JPS6459199A true JPS6459199A (en) 1989-03-06

Family

ID=16701836

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21729187A Pending JPS6459199A (en) 1987-08-31 1987-08-31 Deflection magnet

Country Status (1)

Country Link
JP (1) JPS6459199A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018078100A (en) * 2016-11-07 2018-05-17 イオン ビーム アプリケーションズ ソシエテ アノニム （アイビーエイ）Ｉｏｎ Ｂｅａｍ Ａｐｐｌｉｃａｔｉｏｎｓ Ｓ．Ａ Compact electron accelerator with permanent magnet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018078100A (en) * 2016-11-07 2018-05-17 イオン ビーム アプリケーションズ ソシエテ アノニム （アイビーエイ）Ｉｏｎ Ｂｅａｍ Ａｐｐｌｉｃａｔｉｏｎｓ Ｓ．Ａ Compact electron accelerator with permanent magnet

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