NEUTRON-IRRADIATION EXPERIMENTS FOR FUSION-REACTOR MATERIALS THROUGH JUPITER PROGRAM

A Japan-USA Program of irradiation experiments for fusion research, '' JUPITER'', has been established as a 6 year program from 1995 to 2000. The goal is to study ''the dynamic behavior of fusion reactor materia ls and their response to variable and complex irradiation environment' '. This is phase-three of the collaborative program, which follows RTN S-II Program (Phase-1: 1982-1986) and FFTF/MOTA Program (Phase-2: 1987 -1994). This program is to provide a scientific basis for application of materials performance data, generated by fission reactor experiment s, to anticipated fusion environments. Following the systematic study on cumulative irradiation effects, done through FFTF/MOTA Program, JUP ITER is emphasizing the importance of dynamic irradiation effects on m aterials performance in fusion systems. The irradiation experiments in this program include low activation structural materials, functional ceramics and other innovative materials. The experimental data are ana lyzed by theoretical modeling and computer simulation to integrate the above effects. (C) 1998 Elsevier Science B.V. All rights reserved.