JPS6427199A - Deflection magnet and exciter thereof - Google Patents

Deflection magnet and exciter thereof

Info

Publication number
JPS6427199A
JPS6427199A JP18100287A JP18100287A JPS6427199A JP S6427199 A JPS6427199 A JP S6427199A JP 18100287 A JP18100287 A JP 18100287A JP 18100287 A JP18100287 A JP 18100287A JP S6427199 A JPS6427199 A JP S6427199A
Authority
JP
Japan
Prior art keywords
magnetic field
charged particle
particle beam
correction coils
deflection
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
JP18100287A
Other languages
Japanese (ja)
Other versions
JP2511990B2 (en
Inventor
Masaji Kitamura
Motoya Ito
Shunji Kakiuchi
Naoki Maki
Koji Kobayashi
Kiyoshi Yamaguchi
Hiroshi Tomeoku
Masayuki Nakajima
Teruo Hosokawa
Taido Uno
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.)
Hitachi Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Hitachi Ltd
Nippon Telegraph and Telephone Corp
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 Hitachi Ltd, Nippon Telegraph and Telephone Corp filed Critical Hitachi Ltd
Priority to JP18100287A priority Critical patent/JP2511990B2/en
Publication of JPS6427199A publication Critical patent/JPS6427199A/en
Application granted granted Critical
Publication of JP2511990B2 publication Critical patent/JP2511990B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Particle Accelerators (AREA)

Abstract

PURPOSE:To keep a deflection magnetic field uniform below a specified value and extend the storage life of a charged particle beam by arranging magnetic field correction coils on magnetic pole surfaces of iron cores located opposite to each other in a manner that the correction coils are located on both sides of a vacuum chamber. CONSTITUTION:Magnetic field correction coils 1 are placed on both sides of a vacuum chamber 3 for storing a charged particle beam 6 in a gap between magnetic poles 10a, 10b arranged inside an iron core 8 of a sectorial or semicircular shape. The upper and lower magnetic field correction coils 1a, 1b of the coil 1 are formed to have cross-sectional shapes symmetrical with respect to the orbit surface of the charged particle beam 6. With this constitution, a magnetic field is produced to offset nonuniform magnetic field of deflection magnetic field caused with a particle accelerating deflection magnet to keep the deflection magnetic field uniform below a specified value, reduce instability of the charged particle beam at the time of storing the charged particle beam and extend the storage life of the charged particle beam.
JP18100287A 1987-07-22 1987-07-22 Deflection magnet and its excitation device Expired - Lifetime JP2511990B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18100287A JP2511990B2 (en) 1987-07-22 1987-07-22 Deflection magnet and its excitation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18100287A JP2511990B2 (en) 1987-07-22 1987-07-22 Deflection magnet and its excitation device

Publications (2)

Publication Number Publication Date
JPS6427199A true JPS6427199A (en) 1989-01-30
JP2511990B2 JP2511990B2 (en) 1996-07-03

Family

ID=16093016

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18100287A Expired - Lifetime JP2511990B2 (en) 1987-07-22 1987-07-22 Deflection magnet and its excitation device

Country Status (1)

Country Link
JP (1) JP2511990B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03220500A (en) * 1990-01-24 1991-09-27 Mitsubishi Electric Corp Coil for electromagnet for deflection of charged particle
JP2012119101A (en) * 2010-11-30 2012-06-21 Hitachi Ltd Magnetic field controller and deflection electromagnet device
JP5112571B1 (en) * 2012-02-13 2013-01-09 三菱電機株式会社 Septum electromagnet and particle beam therapy system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03220500A (en) * 1990-01-24 1991-09-27 Mitsubishi Electric Corp Coil for electromagnet for deflection of charged particle
JP2012119101A (en) * 2010-11-30 2012-06-21 Hitachi Ltd Magnetic field controller and deflection electromagnet device
JP5112571B1 (en) * 2012-02-13 2013-01-09 三菱電機株式会社 Septum electromagnet and particle beam therapy system

Also Published As

Publication number Publication date
JP2511990B2 (en) 1996-07-03

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