CRP gas emission from medical isotope facility


Indonesia has been involved actively in collaboration with international organizations such CTBTO, IAEA, and PNNL USA to reduce the radioxenon emission from its facility (Owned by PT INUKI) since 2013. PT INUKI signed a pledge to CTBTO in 2014 that the maximum radioxenon releases from Mo-99 production facility maximum of 5 GBq/day.

INUKI produces Mo-99 from U235 target (Fission Product Molly – FPM). Currently INUKI produces 80 6day Ci Mo-99 perweek using electroplating target. INUKI plans to also use foil target to produce Mo-99. INUKI uses MPR-30 reactor (belong to BATAN) to irradiate its targets. Besides Mo-99, INUKI also produces I-131 using Tellurium (n-gamma). INUKI has also been experimenting to extract I-131 from the FP as well. It has been successful eventhough the production of I-131 from FP still very low. INUKI has been pretty much interested in to continue its involvement in radioxenon mitigation project with CTBTO. The design of using silver zeolite replacing charcoal to trap or delay of radioxenon releases to the atmosphere has been an interest by INUKI if proves to be more effective than using regular charcoal.

Besides INUKI, PT ENSTERNA, a private company of Indonesia, has been designing a solution reactor (Aqueous Homogeneous Reactor) to produce Mo-99 and I-131. Since this is a solution reactor, the fuel and the target are the same. Its design uses Th-232/U-233 fuel and target. Eventhough it is still in the conceptual design stage, PT ENSTERNA follows INUKI footsteps to respect the pledge by INUKI, that is the maximum release of radioxenon is 5 GBq/day in its reactor design.

In the second part of the CRP INUKI continues to collaborate with international organizations to open its facility to have measurement of radioxenon collection for scientific research purposes. PT ENSTERNA would also like to request assistance from IAEA to review its design such that eventually its reactor would cohesive with IAEA and CTBTO missions.

Event: CRP gas emission from medical isotope facility РIAEA 6 Р10 March 2017.
Country report: Indonesia.

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