Study of multi-simultaneous measurement system development under radiation environment and innovative materials

Wakai, Eiichi  ; Iwamoto, Yosuke   ; Shibayama, Tamaki*; Sato, Koichi*; Toyota, Kodai ; Onizawa, Takashi  ; Wakui, Takashi  ; Ishida, Taku*; Makimura, Shunsuke*; Nakagawa, Yuki*; Yano, Yoshihiro*

In the fields of accelerator target systems, nuclear power, aerospace, etc., radiation degradation of structural materials and equipment occurs, and therefore, the development of materials with high durability and excellent functions is expected. In order to create innovative materials that can be used in radiation fields, we are developing a new non-destructive inspection technique that can accurately measure the internal defects of various materials in radiation fields. As an innovative material, high-entropy alloys (HEA) are known for their high strength and ductility, and are expected to be used in various applications. In this talk, we will report on the construction of a measurement principle that enables multi-simultaneous measurements even in radiation fields, the status of HEA prototypes, and the status and progress of irradiation analysis of metals and other materials.