[2L16-18] Neutron Multiplier/Shielding Materials

[2L17] Preliminary investigation of impurities elimination on the reuse process of neutron multipliers for fusion application

*Jae-Hwan Kim¹, Yoshiaki Akatsu ¹, Masaru Nakamichi¹ (1. QST)

Keywords:fusion reactor, neutron multiplier, beryllium , recycling, impurity elimination

Beryllium and beryllium alloys are supposed to be replaced by new every two or five years with a blanket system while those will be loaded with more than 400 tons as neutron multipliers for a blanket system of fusion reactors. However, since huge amounts of multipliers load every time to replace by, establishment of a mass production process including a recycling process of beryllium and its alloys is indispensable from viewpoint of an economic perspective. In this study, preliminary investigation results on impurities, contents and elimination process will be reported.