Article
New measurement of the242Pu(n,γ) cross section at n-TOF-EAR1 for MOX fuels: Preliminary results in the RRR
Author/s | 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 |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Publication Date | 2017 |
Deposit Date | 2017-12-13 |
Published in |
|
Abstract | 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 ... 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 years, providing preliminary individual resonance parameters beyond the current energy limits in the evaluations, as well as a preliminary set of average resonance parameters. |
Funding agencies | Ministerio de Economía y Competitividad (MINECO). España |
Project ID. | FPA2013- 45083-P
![]() FPA2014-53290-C2-2-P ![]() |
Citation | Lerendegui Marco, J., Guerrero Sánchez, C., Cortés Giraldo, M.A., Quesada Molina, J.M., Mendoza, E., Cano-Ott, D.,...,Aberle, O. (2017). New measurement of the242Pu(n,γ) cross section at n-TOF-EAR1 for MOX fuels: Preliminary results in the RRR. EPJ Web of Conferences, 146, 1-4. |
Files | Size | Format | View | Description |
---|---|---|---|---|
New measurement.pdf | 300.1Kb | ![]() | View/ | |