Title :
Design and Construction of FFAG Magnets for the ERIT System at KURRI
Author :
Okabe, Kota ; Uesugi, Tomonori ; Kuriyama, Yasutoshi ; Planche, Thomas ; Lagrange, Jean-Baptiste ; Ishi, Yoshihiro ; Sakai, Izumi ; Mori, Yoshiharu
Author_Institution :
Fac. of Eng., Fukui Univ., Fukui, Japan
fDate :
6/1/2010 12:00:00 AM
Abstract :
As an intense neutron source for the boron neutron capture therapy system, a FFAG storage ring with Energy/emittance Recovery Internal Target (ERIT) has been developed in the Kyoto University Research Reactor Institute (KURRI). In order to develop storage ring for ERIT scheme, the spiral sector and radial sector FFAG rings were designed and compared about performance in ERIT system. The 3-dimensional magnetic fields of these magnets were calculated with the field analysis code, TOSCA. The pole shape of magnet was carefully optimized checking the betatron tune. Tunes were computed by means of tracking simulations in field maps based on TOSCA models. In this paper, the FFAG magnet design for ERIT system and the construction of FFAG ring in KURRI are described.
Keywords :
accelerator magnets; neutron capture therapy; neutron sources; storage rings; superconducting coils; superconducting magnets; 3D magnetic fields; ERIT system; Energy-Emittance Recovery Internal Target; FFAG magnet construction; FFAG magnet design; FFAG ring radial sector; FFAG ring spiral sector; FFAG storage ring; KURRI; Kyoto University Research Reactor Institute; TOSCA code; boron neutron capture therapy system; intense neutron source; Accelerator; accelerator magnets; medical application;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2010.2042696
