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Report No.

Status of development on $$^{99}$$Mo production technologies in JMTR

Inaba, Yoshitomo ; Iimura, Koichi ; Hosokawa, Jinsaku; Izumo, Hironobu; Hori, Naohiko ; Ishitsuka, Etsuo  

The Japan Materials Testing Reactor (JMTR) is now under refurbishment, and the operation of the new JMTR will be started in FY 2011. The new JMTR has a plan to produce $$^{99}$$Mo, which is the parent nuclide of $$^{99m}$$Tc, and two $$^{99}$$Mo production technologies have been developed; the one is a solid irradiation method, and the other is a solution irradiation method. $$^{99}$$Mo production in the JMTR will be started by the solid irradiation method, and it was found that the JMTR can produce about 20% of the demand for $$^{99}$$Mo in Japan. In the solution irradiation method, the fundamental characteristics of the aqueous molybdate solutions selected as the candidates for the irradiation target were cleared.



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