COMPUTATIONAL INVESTIGATION OF 99Mo, 89Sr, AND 131I PRODUCTION RATES IN A SUBCRITICAL UO2(NO3)2 AQUEOUS SOLUTION REACTOR DRIVEN BY A 30-MEV PROTON ACCELERATOR

M. ALIZADEH; A. JOZE-VAZIRI; Z. GHOLAMZADEH; S.A.H. FEGHHI; S.M. MIRVAKILI

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자료유형: 학술저널

저자정보: M. ALIZADEH A. JOZE-VAZIRI Z. GHOLAMZADEH S.A.H. FEGHHI S.M. MIRVAKILI

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제47권 제7호

발행연도: 2015.1

수록면: 875 - 883 (9page)

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The use of subcritical aqueous homogenous reactors driven by accelerators presents anattractive alternative for producing 99Mo. In this method, the medical isotope productionsystem itself is used to extract 99Mo or other radioisotopes so that there is no need toirradiate common targets. In addition, it can operate at much lower power compared to atraditional reactor to produce the same amount of 99Mo by irradiating targets. In this study,the neutronic performance and 99Mo, 89Sr, and 131I production capacity of a subcriticalaqueous homogenous reactor fueled with low-enriched uranyl nitrate was evaluated usingthe MCNPX code. A proton accelerator with a maximum 30-MeV accelerating power wasused to run the subcritical core. The computational results indicate a good potential for themodeled system to produce the radioisotopes under completely safe conditions because ofthe high negative reactivity coefficients of the modeled core. The results show thatapplication of an optimized beam window material can increase the fission power of theaqueous nitrate fuel up to 80%. This accelerator-based procedure using low enricheduranium nitrate fuel to produce radioisotopes presents a potentially competitive alternativein comparison with the reactor-based or other accelerator-based methods. This systemproduces ~1,500 Ci/wk (~325 6-day Ci) of 99Mo at the end of a cycle.

#Computational Simulation #Proton Accelerator #Subcritical Aqueous Reactor #Uranyl Nitrate

참고문헌 (28)

참고문헌 신청

/ / EXFORdIAEA Nuclear Data Services

/ / Production and Supply of Molybdenum-99, International Atomic Energy Agency

/ / Thermal Conductivity for all the elements

/ 1998 / Manage

/ 2012 / Castello di Strassoldo di Sopra, Strassoldo, Friuli-Venezia Giulia / WOSMIP IIIdWorkshop on Signatures of Medical and Industrial Isotope Production

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