Hydrogen isotope exchange in Tungsten

Heun Tae Lee

Presentation information

Oral presentation

V. Fusion Energy Engineering » 501-3 Tritium Science and Technology (Fuel Recovery and Refining, Measurement, Iisotope Effect, Safe Handling)

[2C07-13] Measurement, Production, Behavior

Tue. Mar 27, 2018 2:45 PM - 4:40 PM Room C (R1-211 -R1 Building)

Chair: Teppei Otsuka (Kindai Univ.)

4:00 PM - 4:15 PM

[2C12] Hydrogen isotope exchange in Tungsten

*Heun Tae Lee¹, Johannes Bauer², Thomas Schwarz-Selinger², Yoshio Ueda¹ (1. Osaka University, 2. Max Planck Institute for Plasmaphysics)

Keywords:Tungsten, Isotope exchange

This study aims to show the characteristics of hydrogen isotope exchange dynamics in tungsten. D-ion beam was used to first irradiate the surface of tungsten. Next, D release dynamics as function of implanted H was measured using in-vacuo nuclear reaction analysis (NRA) within <500 nm. The D loss rate due to H isotope exchange was studied as a function of temperature (250-450 K).