Proceedings of the 12th international workshop on beryllium technology (BeWS-12)

The 12th International Workshop on Beryllium Technology (BeWS-12) was held on 10-11 September 2015, at the International Convention Center Jeju (ICCJEJU) in Jeju Island, South Korea. This workshop has been held every 2 years from 1993. The objective of this workshop is to disseminate results of research and technology development in areas relevant to beryllium utilization in fusion nuclear power systems. In this workshop, a lot of researchers and technicians engaged in R and D on beryllium related materials and fusion engineering attended and discussed. This report has been compiled the manuscripts and the presentation files in the BeWS-12. This issue is the collection of 30 papers presented at the entitled meeting. The 14 of the presented papers are indexed individually. (J.P.N.)