Refurbishment and restart of JMTR, 10; Technology development for attractive irradiation tests, 4; Extraction of Tc from Mo produced by (n,) method

Kimura, Akihiro ; Hori, Naohiko ; Tsuchiya, Kunihiko ; Ishihara, Masahiro ; Tanase, Masakazu*; Yamabayashi, Hisamichi*; Fujisaki, Saburo*; Sato, Yuichi*

To expand industrial utilization of JMTR to be reconstructed, JAEA has a plan to produce Mo (half life 65.9h), a parent nuclide of Tc (half life 6.01h) which is used widely as radiopharmaceuticals. There are two methods for Mo production; the one is based on nuclear fission of U, and the other on neutron irradiation of natural Mo compounds. JAEA has proposed the latter method. On the other hand, the latter method also has some drawbacks that the specific activity of Mo and the concentration of Tc in the product solution are very low. And so, to enhance the concentration of the Tc, a method involving a process that the Tc is extracted in methyl ethyl ketone (MEK) has proposed. In this paper, a fundamental study by using Re instead of Tc is presented. Result, developed device can increase the concentration of Tc solution by 20 times.