Measurement of the 244Cm and 246Cm neutron-induced capture cross sections at the n_TOF facility
Metadatos
Mostrar el registro completo del ítemAutor
Alcayne, V.; Ogállar Ruiz, Francisco; Praena Rodríguez, Antonio Javier; Porras Sánchez, José IgnacioEditorial
EDP Sciences
Fecha
2019Referencia bibliográfica
Alcayne, V., Kimura, A., Mendoza, E., Cano-Ott, D., Martínez, T., Aberle, O., ... & Barbagallo, M. (2019). Measurement of the 244Cm and 246Cm neutron-induced capture cross sections at the n_TOF facility. In EPJ Web of Conferences (Vol. 211, p. 03008). EDP Sciences.
Resumen
The neutron capture reactions of the 244Cm and 246Cm isotopes open
the path for the formation of heavier Cm isotopes and heavier elements such as
Bk and Cf in a nuclear reactor. In addition, both isotopes belong to the minor
actinides with a large contribution to the decay heat and to the neutron emission
in irradiated fuels. There are only two previous 244Cm and 246Cm capture cross
section measurements: one in 1969 using a nuclear explosion [1] and the most
recent data measured at J-PARC in 2010 [2]. The data for both isotopes are very
scarce due to the di culties in performing the measurements: high intrinsic
activity of the samples and limited facilities capable of providing isotopically
enriched samples.
We have measured both neutron capture cross sections at the n_TOF Experimental
Area 2 (EAR-2) with three C6D6 detectors and also at Area 1 (EAR-1)
with the TAC. Preliminary results assessing the quality and limitations (background
subtraction, measurement technique and counting statistics) of this new
experimental datasets are presented and discussed.