Design of the Pulse Bending Magnets for the Injection System of the 3-GeV RCS in J-PARC

Author

Takayanagi, T. ; Irie, Y. ; Kamiya, J. ; Watanabe, Manabu ; Watanabe, M. ; Ueno, T. ; Noda, F. ; Saha, P.K. ; Sakai, I. ; Kawakubo, T.

Author_Institution

JAERI, Tokai-Mura, Naka-Gun, Ibaraki-Ken, 319-1195, JAPAN, takayanagi@linac.tokai.jaeri.go.jp

fYear

2005

fDate

16-20 May 2005

Firstpage

1048

Lastpage

1050

Abstract

The pulse bending magnets for the injection system of the 3-GeV RCS in J-PARC [1] [2] has been designed. The injection system consists of the pulsed bending magnets, which are four horizontal bending magnets (shift bump) and four horizontal painting magnets (h-paint bump) for the injection bump orbit, and two vertical painting magnets (v-paint magnet). The injection beam energy and the extraction beam power are 400 MeV and 1 MW at 25 Hz repetition rate, respectively. The acceptance to include the injection beam, the painting beam and the circulating beam at the shift bump points is a 388 mm wide and a 242 mm high. The shift bump has been designed using a 3D magnetic analysis code [3], which accomplished less than 0.4 % field deviation under 0.26 T excitation level.

Keywords

Apertures; Coils; Linear particle accelerator; Magnetic analysis; Magnetic cores; Magnets; Painting; Paints; Structural beams; Synchrotrons;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the

Print_ISBN

0-7803-8859-3

Type

conf

DOI

10.1109/PAC.2005.1590654

Filename

1590654