Study of photon strength functions of $^{241}$Pu and $^{245}$Cm from neutron capture measurements

We have measured theγ-rays following neutron capture on240Pu and244Cm at the n_TOF facility at CERN with the Total Absorption Calorimeter (TAC) and with C6D6 organic scintillators. The TAC is made of 40 BaF2 crystals operating in coincidence and covering almost the entire solid angle. This allows to...

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Detalles Bibliográficos
Autores principales: Mendoza, E, Alcayne, V, Cano-Ott, D, Kimura, A, Skarbeli, A V, Aberle, O, Amaducci, S, Andrzejewski, J, Audouin, L, Babiano-Suarez, V, Bacak, M, Barbagallo, M, Bécares, V, Bečvář, F, Bellia, G, Berthoumieux, E, Billowes, J, Bosnar, D, Brown, A S, Busso, M, Caamaño, M, Caballero, L, Calviani, M, Calviño, F, Casanovas, A, Cerutti, F, Chen, Y H, Chiaveri, E, Colonna, N, Cortés, G P, 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-Domíngez, B, Ferrari, A, Ferro-Gonçalves, I, Finocchiaro, P, Furman, V, Garg, R, Gawlik, A, Gilardoni, S, Glodariu, T, Göbel, K, González-Romero, E, Guerrero, C, Gunsing, F, Heinitz, S, Heyse, J, Jenkins, D G, Jericha, E, Kadi, Y, Käppeler, F, Kivel, N, 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, Martínez, T, Masi, A, Massimi, C, Mastinu, P F, Mastromarco, M, Matteucci, F, Maugeri, E, 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, Piersanti, L, Porras, I, Praena, J, Quesada, J M, Radeck, D, Ramos Doval, D, Reifarth, R, Rochman, D, Rubbia, C, Sabaté-Gilarte, M, Saxena, A, Schillebeeckx, P, Schumann, D, Smith, A G, Sosnin, N, Stamatopoulos, A, Tagliente, G, Tain, J L, Talip, Z, Tarifeño-Saldivia, A E, Tassan-Got, L, Torres-Sánchez, P, Tsinganis, A, Ulrich, J, Urlass, S, Valenta, S, Vannini, G, Variale, V, Vaz, P, Ventura, A, Vlachoudis, V, Vlastou, R, Wallner, A, Woods, P J, Wright, T J, Žugec, P
Lenguaje:eng
Publicado: 2020
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1051/epjconf/202023901015
http://cds.cern.ch/record/2773395
Descripción
Sumario:We have measured theγ-rays following neutron capture on240Pu and244Cm at the n_TOF facility at CERN with the Total Absorption Calorimeter (TAC) and with C6D6 organic scintillators. The TAC is made of 40 BaF2 crystals operating in coincidence and covering almost the entire solid angle. This allows to obtain information concerning the energy spectra and the multiplicity of the measured captureγ-ray cascades. Additional information is also obtained from the C6D6 detectors. We have analyzed the measured data in order to draw conclusions about the Photon Strength Functions (PSFs) of241Pu and245Cm below their neutron separation energies. The analysis has been performed by fitting the PSFs to the experimental results, using the differential evolution method, in order to find neutron capture cascades capable of reproducing at the same time a great variety of deposited energy spectra.

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