Estimation of 99Mo production rates from natural molybdenum in research reactors
M. Blaauw (TU Delft - Applied Sciences)
D. Ridikas (International Atomic Energy Agency, Vienna)
S. Baytelesov (Institute of Nuclear Physics Uzbekistan Academy of Sciences)
P. S Bedregal Salas (Instituto Peruano de Energia Nuclear Lima)
Y. Chakrova (Institute of Nuclear Physics of Ministry of Energy of the Republic of Kazakhstan)
Cho Eun-Ha (Korea Atomic Energy Research Institute)
R. Dahalan (Malaysian Nuclear Agency)
A. H. Fortunato (Instituto Nacionale de Investigciones Nucleares)
R. Jacimovic (Jozef Stefan Institute)
A. Kling (Universidade Técnica de Lisboa)
L. Muñoz (Comisión Chilena de Energía Nuclear (CCHEN))
N. M A Mohamed (Atomic Energy Authority (AEA))
D. Párkányi (Hungarian Academy of Sciences)
T. Singh (Bhabha Atomic Research Centre)
Dong Duong Van Dong Duong (Vietnam Atomic Energy Institute)
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Abstract
Molybdenum-99 is one of the most important radionuclides for medical diagnostics. In 2015, the International Atomic Energy Agency organized a round-robin exercise where the participants measured and calculated specific saturation activities achievable for the 98Mo(n,γ)99Mo reaction. This reaction is of interest as a means to locally, and on a small scale, produce 99Mo from natural molybdenum. The current paper summarises a set of experimental results and reviews the methodology for calculating the corresponding saturation activities. Activation by epithermal neutrons and also epithermal neutron self-shielding are found to be of high importance in this case.
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