Measurement of the 240Pu(n,f) cross-section at the CERN n-TOF facility: First results from EAR-2

Tsinganis, A.; Stamatopoulos, A.; Colonna, N.; Vlastou, R.; Schillebeeckx, P.; Plompen, A.; Heyse, J.; Kokkoris, M.; Barbagallo, M.; Berthoumieux, E.; Calviani, M.; Chiaveri, E.; Aberle, O.; Andrzejewski, J.; Audouin, L.; Bacak, M.; Balibrea Correa, J.; Barros, S.; Bécares, Null; Bečvár, F.; Beinrucker, C.; Billowes, J.; Bosnar, D.; Brugger, M.; Caamaño, M.; Calviño, F.; Cano Ott, D.; Cerutti, F.; Cortés, G.; Cortés Giraldo, M. A.; Cosentino, L.; Damone, L.; Deo, K.; Diakaki, M.; Domingo Pardo, C.; Dressler, R.; Dupont, E.; Durán, I.; Fernández Domínguez, B.; Ferrari, A.; Ferreira Gonalves, I.; Finocchiaro, P.; Frost, R.; Furman, W.; Göbel, K.; Ganesan, S.; Gheorghe, A.; Glodariu, T.; González, E.; Goverdovski, A.; Griesmayer, E.; Guerrero, C.; Gunsing, F.; Harada, H.; Hehrich, T.; Heinitz, S.; Hernández Prieto, A.; Jenkins, D.; Jericha, E.; Käppeler, F.; Kadi, Y.; Katabuchi, T.; Kavrigin, P.; Ketlerov, V.; Khryachkov, V.; Kimura, A.; Kivel, N.; Kriťka, M.; Leal Cidoncha, E.; Lederer, C.; Leeb, H.; Lerendegui, J.; Licata, M.; LO MEO, Sergio; Losito, R.; Macina, D.; Marganiec, J.; Martínez, T.; Mastinu, P.; Massimi, Cristian; Mastromarco, M.; Matteucci, F.; Mendoza, E.; Mengoni, A.; Milazzo, P.; Mingrone, Federica; Mirea, M.; Montesano, S.; Musumarra, A.; Nolte, R.; Palomo Pinto, F.; Paradela, C.; Patronis, N.; Pavlik, A.; Perkowski, J.; Porras Sanchez, I.; Praena, J.; Quesada, J. M.; Rauscher, T.; Reifarth, R.; Riego Perez, A.; Robles, M.; Rubbia, C.; Ryan, J.; Sabaté Gilarte, M.; Saxena, A.; Schmidt, S.; Schumann, D.; Sedyshev, P.; Smith, G.; Steinegger, P.; Suryanarayana, S. V.; Tagliente, G.; Tain, J. L.; Tarifeõ Saldivia, A.; Tassan Got, L.; Valenta, V.; Vannini, Gianni; Variale, V.; Vaz, P.; Ventura, A.; Vlachoudis, V.; Wallner, A.; Warren, S.; Weiss, C.; Weigand, M.; Wright, T.; Žugec, P.

The accurate knowledge of neutron cross-sections of a variety of plutonium isotopes and other minor actinides, such as neptunium, americium and curium, is crucial for feasibility and performance studies of advanced nuclear systems (Generation-IV reactors, Accelerator Driven Systems). In this context, the 240Pu(n,f) cross-section was measured with the time-of-flight technique at the CERN n-TOF facility at incident neutron energies ranging from thermal to several MeV. The present measurement is the first to have been performed at n-TOF's newly commissioned Experimental Area II (EAR-2), which is located at the end of an 18 m neutron beam-line and features a neutron fluence that is 25-30 times higher with respect to the existing 185 m flight-path (EAR-1), as well as stronger suppression of sample-induced backgrounds, due to the shorter times-of-flight involved. Preliminary results are presented.

Tsinganis, A., Stamatopoulos, A., Colonna, N., Vlastou, R., Schillebeeckx, P., Plompen, A., et al. (2015). Measurement of the 240Pu(n,f) cross-section at the CERN n-TOF facility: First results from EAR-2. CERN.