The Conceptual Design Activity (CDA) for the International Fusion Mate
rials Irradiation Facility (IFMIF) has entered its second and final ye
ar, and an outline design has been developed. Initial evaluations of t
he potential of this high flux, high intensity D-Li source have shown
that the main materials testing needs can be fulfilled. According to t
he materials testing needs, Vertical Test Assemblies will accommodate
test modules for the high flux (0.5 liter, 20 dpa/a, 250-1000 degrees
C), the medium flux (6 liter, 1-20 dpa/a, 250-1000 degrees C), the low
flux (7.5 liter, 0.1-1 dpa/a), and the very low flux (> 100 liter, 0.
01-0.1 dpa/a) regions. Detailed test matrices have been defined for th
e high and medium flux regions, showing that on the basis of small spe
cimen test technologies, a database for an engineering design of an ad
vanced fusion reactor (DEMO) can be established for a variety of struc
tural materials and ceramic breeders. The design concepts for the Test
Cell, including test assemblies, remote handling equipment and Hot Ce
ll Facilities with capacity for investigating all irradiation specimen
s at the IFMIF site are described.