Feasibility study of sublimation type Tc master-milker; Comparison with PZC based wet method

Ishitsuka, Etsuo   ; Yamabayashi, Hisamichi*; Tanase, Masakazu*; Fujisaki, Saburo*; Sato, Norihito*; Hori, Naohiko ; Awaludin, R.*; Gunawan, A. H.*; Lubis, H.*; Mutalib, A.*

Feasibility study of sublimation type Tc master-milker was carried out as a Mo/T production development with the JMTR. As the feasibility study, the experimental equipment for sublimation method and wet method with PZC based Tc solution were tentatively manufactured, and their properties as the master-milker were investigated by comparing two methods with each other. As a result, it was found that the Tc recovery rate and process time of the sublimation method were about 80% and 1.5 hour, respectively, and the similar values were observed with the wet method. Superior points of the sublimation method are easier operation and reusability of the used MoO comparing with the wet method. On the other hand, disadvantageous point is that the Tc recovery rate decreases with the increase of treating amount of MoO.