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New measurement of the242Pu(n,γ) cross section at n-TOF-EAR1 for MOX fuels: Preliminary results in the RRR

Opened Access New measurement of the242Pu(n,γ) cross section at n-TOF-EAR1 for MOX fuels: Preliminary results in the RRR

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Autor: Lerendegui Marco, Jorge
Guerrero Sánchez, Carlos
Cortés Giraldo, Miguel Antonio
Quesada Molina, José Manuel
Mendoza, Emilio
Cano-Ott, D.
Eberhardt, Klaus
Junghans, Arnd R.
Aberle, Oliver
Departamento: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Fecha: 2017
Tipo de documento: Artículo
Resumen: The spent fuel of current nuclear reactors contains fissile plutonium isotopes that can be combined with 238U to make mixed oxide (MOX) fuel. In this way the Pu from spent fuel is used in a new reactor cycle, contributing to the long-term sustainability of nuclear energy. The use of MOX fuels in thermal and fast reactors requires accurate capture and fission cross sections. For the particular case of 242Pu, the previous neutron capture cross section measurements were made in the 70’s, providing an uncertainty of about 35% in the keV region. In this context, the Nuclear Energy Agency recommends in its “High Priority Request List” and its report WPEC-26 that the capture cross section of 242Pu should be measured with an accuracy of at least 7–12% in the neutron energy range between 500 eV and 500 keV. This work presents a brief description of the measurement performed at n TOF-EAR1, the data reduction process and the first ToF capture measurement on this isotope in the last 40 y...
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Tamaño: 300.1Kb
Formato: PDF

URI: http://hdl.handle.net/11441/67608

DOI: 10.1051/epjconf/201714611045

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