Neutronic Analysis of SAMOP Reactor Experimental Facility Using SCALE Code System

Subcritical Assembly for Molybdenum Production (SAMOP) is a concept of nuclear reactor where the neutron multiplication factor (keff) less than one (keff ∼ 0.99). Therefore, SAMOP reactor need an external neutron source for its operation. Uranyl Nitrate Hexahydrate, UO2(NO3)2 or UN is used as fuel as well as target material for 99Mo production. The 99Mo isotope is used to generate 99mTc which is the most widely used radioisotopes for diagnostic in nuclear medical fields. The composition of Uranyl Nitrate Hexahydrate (UNH) should be analyzed to achieve the required subcritical level in the SAMOP core i.e. k-eff ∼ 0.99. Methodology for this analysis is an elemental composition calculation of UNH, with enrichment of uranium of 19.75% and 2.81 gr/cc of density. The analysis result shows that the elemental composition of 235U, 238U, N, O, and H, are 4.9715%, 20.2009%, 5.3448%, 37.4138%, and 32.069% respectively, and therefore, the composition of U and N-O-H are 25.1724%, and 74.8276% respectively. The composition is then used as input for the neutronic analysis using the WIMS-D/4 computer code for keff calculation of SAMOP. The result shows that the optimum keff of 0.99 is achieved with the above elemental compositions.

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Neutronic Analysis of SAMOP Reactor Experimental Facility Using SCALE Code System

Cited by 3 publications

References 3 publications

Compact neutron generator as external neutron source of subcritical assembly for Mo-99 production (SAMOP)

Compact neutron generator as external neutron source of subcritical assembly for Mo-99 production (SAMOP)

Pre-Experimental Assessment of Uranyl Nitrate Solution Irradiation in Kartini Reactor Facilities

Analysis of Uranyl Nitrate Hexahydrate composition for optimum neutron multiplication factor of SAMOP

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