CERN Accelerating science

Article
Title	Construction of FFAG Accelerators in KURRI for ADS Study
Author(s)	Tanigaki, Minoru ; Fukumoto, Shintaro ; Inoue, Makoto ; Ishi, Yoshihiro ; Machida, Shinji ; Mishima, Kaichiro ; Mori, Yoshiharu ; Shiroya, Seiji
Affiliation	(KEK, Ibaraki) ; (KURRI, Osaka) ; (Mitsubishi Electric Corp, Kobe) ; (SLLS, Shiga)
Publication	2004
Number of pages	3
In:	9th European Particle Accelerator Conference, Lucerne, Switzerland, 5 - 9 Jul 2004, pp.2676
In:	21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.350
In:	3rd Asian Particle Accelerator Conference, Gyeongju, Korea, 22 - 26 Mar 2004, pp.517
Subject category	Accelerators and Storage Rings
Free keywords	acceleration ; booster ; ion ; ion-source ; proton
Abstract	KART (Kumatori Accelerator driven Reactor Test) project is in progress at Kyoto University Research Reactor Institute (KURRI) from the fiscal year of 2002. The purposes of this project is the feasibility study of ADS, such as studying the effect of incident neutron energy on the effective multiplication factor of the subcritical nuclear fuel system. We are now constructing a proton FFAG accelerator complex as a neutron production driver for this project. Our accelerator complex consists of a 2.5 MeV FFAG with induction acceleration as an injector, 20 MeV and 150 MeV FFAGs with RF acceleration as a booster and a main ring, respectively. Our FFAG injector is a spiral sector type with 32 trim coils to produce a magnetic field of variable field index. Both booster and main rings are the radial sector type in which the field index is determined by the shape of pole-face. The test operations of the injector and the whole FFAG complex are expected around the spring and summer in 2005, respectively. Then this FFAG complex will be combined with our Kyoto University Critical Assembly (KUCA) in KURRI by the end of March 2006 for the feasibility study.

Email contact: tanigaki@rri.kyoto-u.ac.jp