[1J06-08] 超臨界圧軽水冷却炉

[1J07] Research on fundamental technology for SCWR based on RISA

12th report, Wettability observation in capillary tubes at subcritical condition using neutron radiography

*Wilson Susanto¹、Tomonori Ihara¹、Tatsuya Hazuku¹、Shinichi Morooka²、Daisuke Ito³、Sho Kano⁴ (1. Tokyo University of Marine Science and Technology、2. Waseda University、3. Kyoto University、4. The University of Tokyo)

キーワード：SCWR、RISA、Wettability、Capillary action、Neutron radiography

In order to evaluate the effect of gamma-ray irradiation on metal surface wettability under a subcritical condition with a temperature of 320 centigrade and pressure of 21 MPa, a capillary action of a nitrogen gas-water system in small pipes with inner-diameters ranging from 0.5 mm to 1.8 mm were observed using a neutron radiography.