Title :
Design study of a very large aperture eddy current septum for J-PARC
Author :
Fan, K. ; Sakamoto, Y. ; Matsumoto, H. ; Kobayashi, H.
Author_Institution :
KEK, Tsukuba
Abstract :
An eddy current septum has been studied for the 50 GeV main ring injection in the JPARC. Due to the high beam intensity, very large aperture is required to accommodate the large size injected beam. A large aperture magnet leads to significant end field and considerable eddy current losses, which degrades magnet performance and creates thermal problems. This paper discusses the eddy current effects on the field distribution and studies the methods for the eddy current effects compensation.
Keywords :
accelerator magnets; particle beam injection; proton accelerators; synchrotrons; J-PARC; aperture magnet; eddy current losses; electron volt energy 50 GeV; high beam intensity; injected beam; linac; main ring injection systems; Apertures; Eddy currents; Lamination; Magnetic flux; Magnetic losses; Magnetic shielding; Particle beam injection; Skin; Space vector pulse width modulation; Thermal degradation;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440166
