[1J06-08] Supercritical-Water-Cooled Reactor

[1J08] Research on fundamental technology for SCWR based on RISA

13th report, Surface microstructure analysis of RISA material due to the UV and γ-ray irradiation

*Sho Kano¹, Hilong Yang¹, John Patric McGrady¹, Tomonori Ihara², Tatsuya Hazuku², Hiroaki Abe¹ (1. The University of Tokyo, 2. The University of Marine Science and Technology)

Keywords:Radiation induced surface activity (RISA) Effect, Supercritical light water reactor, Irradiation effect, Wettability

超臨界圧軽⽔冷却炉の燃料被覆管の候補材料であるPNC1520材に対し、UVやγ線照射によって放射線誘起表⾯活性効果(RISA)を発現させ、これら試料に対し、顕微ラマン分光や表⾯⾛査顕微鏡観察を実施し、RISA材料の表⾯微細組織を定量的に評価した。