Measurement of the $^{244}Cm$ and $^{246}Cm$ neutron-induced capture cross sections at the n_TOF facility

The neutron capture reactions of the $^{244}$Cm and $^{246}$Cm 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...

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Detalles Bibliográficos
Autores principales: Alcayne, V, Kimura, A, Mendoza, E, Cano-Ott, D, Martínez, T, Aberle, O, Andrzejewski, J, Audouin, L, Bécares, V, Bacak, M, Barbagallo, M, Bečvář, F, Bellia, G, Berthoumieux, E, Billowes, J, Bosnar, D, Brown, A, Busso, M, Caamaño, M, Caballero-Ontanaya, L, Calviño, F, Calviani, M, Casanovas, A, Cerutti, F, Chen, Y H, Chiaveri, E, Colonna, N, Cortés, G, Cortés-Giraldo, M A, Cosentino, L, Cristallo, S, Damone, L A, Diakaki, M, Dietz, M, Domingo-Pardo, C, Dressler, R, Dupont, E, Durán, I, Eleme, Z, Fernández-Domínguez, B, Ferrari, A, Finocchiaro, P, Furman, V, Göbel, K, Gawlik, A, Gilardoni, S, Glodariu, T, Gonçalves, I F, González-Romero, E, Guerrero, C, Gunsing, F, Harada, H, Heinitz, S, Heyse, J, Jenkins, D G, Käppeler, F, Kadi, Y, Katabuchi, T, Kivel, N, Knapova, I, Kokkoris, M, Kopatch, Y, Krtička, M, Kurtulgil, D, Ladarescu, I, Lederer-Woods, C, Lerendegui-Marco, J, Lo Meo, S, Lonsdale, S J, Macina, D, Manna, A, Masi, A, Massimi, C, Mastinu, P, Mastromarco, M, Matteucci, F, Maugeri, E A, Mazzone, A, Mengoni, A, Michalopoulou, V, Milazzo, P M, Mingrone, F, Musumarra, A, Negret, A, Nolte, R, Ogállar, F, Oprea, A, Patronis, N, Pavlik, A, Perkowski, J, Persanti, L, Porras, I, Praena, J, Quesada, J M, Radeck, D, Ramos-Doval, D, Rauscher, T, Reifarth, R, Rochman, D, Sabaté-Gilarte, M, Saxena, A, Schillebeeckx, P, Schumann, D, Simone, S, Smith, A G, Sosnin, N V, Stamatopoulos, A, Tagliente, G, Tain, J L, Talip, T, Tarifeño-Saldivia, A, Tassan-Got, L, Tsinganis, A, Ulrich, J, Urlass, S, Valenta, S, Vannini, G, Variale, V, Vaz, P, Ventura, A, Vescovi, D, Vlachoudis, V, Vlastou, R, Wallner, A, Woods, P J, Wright, T, Žugec, P
Lenguaje:eng
Publicado: 2019
Materias:
Other
Acceso en línea:https://dx.doi.org/10.1051/epjconf/201921103008
http://cds.cern.ch/record/2679683
Descripción
Sumario:The neutron capture reactions of the $^{244}$Cm and $^{246}$Cm 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 $^{244}$Cm and $^{246}$Cm 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 difficulties 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 C6 D6 detectors and also at Area 1 (EAR-1) with the TAC. Preliminary results assessing the quality and limitations (back-ground subtraction, measurement technique and counting statistics) of this new experimental datasets are presented and discussed.

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