Beam extraction of the PoP FFAG with a massless septum

Author

Yonemura, Y. ; Adachi, T. ; Aiba, M. ; Machida, S. ; Mori, Y. ; Muto, A. ; Nakano, J. ; Ohmori, C. ; Sakai, I. ; Sato, Y. ; Sugaya, M. ; Takagi, A. ; Ueno, R. ; Uesugi, T. ; Yamazaki, A. ; Yokoi, T. ; Yoshimoto, M. ; Yuasa, Y. ; Matoba, M. ; Koba, K.

Author_Institution

KEK, Ibaraki, Japan

Volume

3

fYear

2003

fDate

12-16 May 2003

Firstpage

1679

Abstract

We propose a new extraction scheme with a massless septum magnet in FFAG accelerator, with which the DC beam can be extracted. The system consists of a combination of massless and ordinary septa without kickers. After passing through the massless septum, the beam tail is stretched by the field gradient of the massless septum magnet, and that can be extracted with an ordinary septum. From the result of the tracking simulation, the principle of the extraction scheme is verified. The result of the performance test of the massless septum indicates that the magnet works well as designed, and this scheme is feasible.

Keywords

accelerator magnets; particle beam extraction; synchrotrons; DC beam; FFAG accelerator; beam extraction; beam tail; extraction scheme; massless septum magnet; tracking simulation; Acceleration; Accelerator magnets; Magnetic resonance; Magnetic separation; Magnetosphere; Particle beams; Protons; Synchrotrons; Tail; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1288634

Filename

1288634