Thermal diffusivity estimation of tungsten materials neutron irradiated in HFIR RB-19J capsule.

Masafumi Akiyoshi

Presentation information

Oral presentation

VI. Fusion Energy Engineering » 601-2 Fusion Reactor Material Science (Reactor and Blanket Materials, Irradiation Behavior)

[2O01-04] Tungsten(Radiation Effects)

Thu. Mar 21, 2019 9:45 AM - 10:50 AM Room O (Common Education Bildg. 2 4F No.46)

Chair:Yoshitaka Matsukawa(Tohoku Univ.)

9:45 AM - 10:00 AM

[2O01] Thermal diffusivity estimation of tungsten materials neutron irradiated in HFIR RB-19J capsule.

*Masafumi Akiyoshi¹, Lauren M Garrison², Josina Wilna Geringer², Hsin Wang², Yutai Katoh² (1. Osaka Prefecture Univ., 2. ORNL)

Keywords:divertor material, thermal diffusivity, neutron irradiation, tungsten, nuclear transmutation

In the PHENIX project, neutron irradiation with Gd shield was performed to inhibit a nuclear transmutation in HFIR RB-19J capsule. In this study, degradation of thermal diffusivity arisen from Re production via transmutation of tungsten, and also irradiation defects were discussed.