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

[1O03] Defect distribution influence on retention behavior in deuterium plasma implanted tungsten irradiated by neutron and Fe ion

*Shota Yamazaki¹, Akihiro Togari², Moeko Nakata², Mingzhong Zhao², Fei Sun¹, Tatsuya Kuwabara³, Yuji Hatano⁴, Takeshi Toyama⁵, Yasuhisa Oya² (1. Fac. Sci., Shizuoka Univ., 2. Grad. Sch. Sci. Tech., Shizuoka Univ., 3. Grad. Sch. Eng., Nagoya Univ., 4. HIRC, Univ. of Toyama, 5. IMR, Tohoku Univ.)

Keywords:plasma exposure, neutron irradiation, Thermal Desorption Spectrometry, tungsten, heavy ion irradiation

To understand effect of defect distribution on deuterium (D) retention behavior, tungsten (W) were irradiated by neutron and iron (Fe) ion. Afterwards, D₂⁺ implantation and Thermal Desorption Spectrometry (TDS) were performed. D retention of neutron-Fe irradiated sample was lower than that of only Fe irradiated sample, indicating D retention behavior was associated with damage distribution.