Mo adsorption and Tc elution characteristics of molybdenum adsorbents for (n,); Method-joint experiment report on irradiation technology of RI production (STC No. 2-II) (Joint research)

Kimura, Akihiro ; Izumo, Hironobu; Tsuchiya, Kunihiko ; Hori, Naohiko ; Ishihara, Masahiro ; Bannykh, V.*; Gluschenko, N.*; Chakrova, Y.*; Chakrov, P.*

Japan Materials Testing Reactor (JMTR) of the Japan Atomic Energy Agency (JAEA) has a plan to produce Mo, which is the parent nuclide of radiopharmaceutical Tc, by (n,) method. The Mo adsorption and Tc elution characteristics of molybdenum adsorbents should be evaluated since the specific activity of Mo obtained by (n,) method is low. Therefore, Mo adsorption and Tc elution tests with molybdenum adsorbents for the (n,) method such as poly-zirconium compound (PZC) and molybdate zirconium gel were carried out under cooperation with the Kazakhstan National Nuclear Energy Center (NNC). As a result, the Mo adsorption performance of the adsorbents was the same level as conventional data, whereas the Tc elution performance of the adsorbents was lower than conventional data. The Mo adsorption and Tc elution performance will be investigated again in future.