Opposite field septum magnet system for the separation of charged particle beams

Author

Sakai, I. ; Arakaki, Y. ; Tomizawa, M. ; Shirakabe, Y. ; Muto, M. ; Mori, Y. ; Ishi, Y. ; Fukumoto, S.

Author_Institution

High Energy Accelerator Res. Org., Ibaraki, Japan

Volume

12

Issue

1

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

242

Lastpage

246

Abstract

The Japan Hadron Facility (JHF) accelerator complex comprises a 50-GeV main synchrotron, a 3-GeV rapid-cycling synchrotron, and a 400-MeV linac. The accelerators provide high-intensity, high-energy proton beams for various scientific fields. These high-intensity, high-energy accelerators, especially the 50-GeV main synchrotron, impose tight demands on the injection/extraction septum magnets for a thin structure, large aperture and high operating field. But to manufacture high field septum magnets on the condition of a large aperture is very difficult because of its extraordinarily strong electromagnetic force due to the self-field. To cope with these tight demands, new design concepts of septa are required. An opposite-field septum magnet system is one of the solutions to realize a thin septa or very high-field septum magnets.

Keywords

accelerator magnets; colliding beam accelerators; particle beam extraction; particle beam injection; proton accelerators; superconducting magnets; synchrotrons; 50 GeV; Japan Hadron Facility accelerator; high-energy accelerators; high-energy proton beams; injection/extraction septum magnets; linac; main synchrotron; opposite-field septum magnet system; rapid-cycling synchrotron; Accelerator magnets; Apertures; Electromagnetic forces; Linear particle accelerator; Magnetic separation; Manufacturing; Particle accelerators; Particle beams; Proton accelerators; Synchrotrons;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2002.1018391

Filename

1018391