Neutrino Factory design based on FFAG

An overview of a neutrino factory design in Japan is presented. Our design goal is to obtain 1 x 10(20) muon decays per straight section per year with the muon energy of 20 GeV/c. It will be about four times more if the proton driver is upgraded. Upgrade path to higher muon energy is also considered. (C) 2003 Elsevier Science B.V. All rights reserved.