[1O01-07] Tungsten Materials (Behavior of Hydrogen Isotope)

[1O02] Evaluation of surface and bulk defect distribution influence on deuterium retention in damaged tungsten

*Takuro Wada¹, Akihiro Togari², moeko nakata², Mingzhong Zhao², Fei Sun¹, Yuji Hatano³, Yasuhisa Oya¹ (1. Faculty of Science, Shizuoka University, 2. Graduate School of Science and Technology, Shizuoka University, 3. Hydrogen Isotope Research Center, University of Toyama)

Keywords:Tungsten, hydrogen ion implantation, heavy ion implantation, deuterium retention behavior, Thermal Desorption Spectroscopy

To evaluate the deuterium (D) retention behavior in tungsten (W) with various damage distributions, Fe ions and H ions were implanted into tungsten with various damage concentrations. Thereafter, 3.0 keV D₂⁺ implantation and thermal desorption spectroscopy were performed to evaluate the D retention behavior. The D retention in W was affected by the damage range.