[2C08-11] Radiation Effect 1

[2C11] Adsorption behavior of radiocesium of filtered containment venting system during long-term operation

*Moeko Nakata¹, Akihiro Togari¹, Qilai Zhou², Yuji Hatano³, Yasuhisa Oya¹ (1. Grad. Sch., Shizuoka Univ., 2. Fac. of Sci., Shizuoka Univ., 3. HIRC, Univ. of Toyama)

Keywords:filtered containment venting system, stainless steel, radiocesium

To investigate the adsorption behavior of radioactive material for filtered containment venting system during long-term operation, SUS316L was immersed in cesium chloride (CsCl). After that, N₂ gas flow was performed, and the removal amount of radioactive Cs was evaluated. As a result, it was suggested that gamma irradiation reduces the Cs trapping ability on SUS316L.