At present the ESS-Project is in its R&D phase (1997-2001) comprising activ
ities in the areas of accelerator (linac and rings), target station (target
, moderators, reflector) and instruments. The work is carried out by 14 lab
oratories and universities in the European Union and Switzerland and co-ord
inated by the ESS R&D Council. Intense and fruitful collaborations with par
tners in the United States, Japan and Russia have been established. In this
article, examples of typical results of R&D work on the ESS linac and targ
et will be given. (C) 2000 Elsevier Science B.V. All rights reserved.