[2G05-08] 医療用加速器技術・RI製造

[2G07] Feasibility study of ^99mTc production at HTTR using sublimation method

*Hai Quan Ho¹, Hiroki Ishida², Shimpei Hamamoto¹, Toshiaki Ishii¹, Nozomu Fujimoto³, Naoyuki Takaki², Etsuo Ishitsuka¹ (1. Japan Atomic Energy Agency, 2. Tokyo City University, 3. Kyushu University)

キーワード：HTTR, 99mTc, 99Mo, Radioisotope, sublimation

This study investigated the feasibility of direct ^99mTc production at the high temperature engineering test reactor (HTTR), aimed to avoid using the high enriched uranium (HEU) target as in conventional method. With the high temperature at irradiation area, the ^99mTc is separated directly from (n,γ)⁹⁹Mo inside the reactor using a sublimation technique without external electric heating. The new design could simplify the post-processing and other handling procedures. The risk of nuclear proliferation is also kept to a minimum.