Latest liquid lithium target design during the key element technology phase in the international fusion materials irradiation facility (IFMIF)

摘要

International Fusion Materials Irradiation Facility (IFMIF), being jointly developed by EU, JA, RF and US, is a deuteron-lithium (Li) stripping reaction neutron source for fusion materials testing. In 2002, a 3 year Key Element technology Phase (KEP) to reduce the key technology risk factors was completed. A liquid Li target has been designed to produce intense high energy neutrons (2 MW/m~2) up to 50 dpa/year by 10 MW of deuterium beam deposition which corresponds to an ultra high heat load of 1 GW/m~2. This paper describes the latest design of the liquid Li target system reflecting the KEP results and future prospects.