STRUCTURAL MATERIAL INVESTIGATIONS IN THE HIGH TEMPERATURE IRRADIATION FACILITY OF THE BUDAPEST RESEARCH REACTOR

摘要

The Budapest Research Reactor is operated by the KFKI Atomic Energy Research Institute in Hungary. After full reconstruction it was started again in 1993, and a new irradiation rig called BAGIRA-1 (Budapest Advanced Gas-cooled Irradiation Rig Assembly) was installed in close co-operation with the Paul Scherer Institute (Switzerland). The rig is operational since 1998 and it is used to irradiate nuclear reactor vessel and fusion equipment materials in order to study and evaluate the irradiation ageing. The average fast neutron flux at the position of the rig is about 6×10~(13)n/cm~2s (>1 MeV). This paper is a review of the material testing studies completed so far and the recent improvements of the rig.