[3H01-05] NUclear Transmutation 1

[3H02] Rhenium Production through Transmutation of Tungsten in Fast Reactors

Study on Reducing Specific Radioactivity of Rhenium

*Tsugio Yokoyama¹, Yasuyuki Itoh², Masaki Ozawa³ (1. TNES, 2. Fukui University of Technology, 3. Tokyo Tech)

Keywords:Transmutation, Fast reactor, Moderator, Rhenium, Specific radioactivity

The specific radioactivity of rhenium transmuted from tungsten irradiated at the peripheral zone of the fast reactor core can be reduced much less than that of natural rhenium if the neutron spectrum at the target is modulated properly by using deuterium moderator or other materials.