Measurement of the U-235(n, f) cross section relative to the Li-6(n, t) and B-10(n,alpha) standards from thermal to 170 keV neutron energy range at n_TOF
- Amaducci, S.
- Cosentino, L.
- Barbagallo, M.
- Colonna, N.
- Mengoni, A.
- Massimi, C.
- Lo Meo, S.
- Finocchiaro, P.
- Aberle, O.
- Andrzejewski, J.
- Audouin, L.
- Bacak, M.
- Balibrea, J.
- Becvar, F.
- Berthoumieux, E.
- Billowes, J.
- Bosnar, D.
- Brown, A.
- Caamano, M.
- Calvino, F.
- Calviani, M.
- Cano-Ott, D.
- Cardella, R.
- Casanovas, A.
- Cerutti, F.
- Chen, Y. H.
- Chiaveri, E.
- Cortes, G.
- Cortes-Giraldo, M. A.
- Damone, L. A.
- Diakaki, M.
- Domingo-Pardo, C.
- Dressler, R.
- Dupont, E.
- Duran, I.
- Fernandez-Dominguez, B.
- Ferrari, A.
- Ferreira, P.
- Furman, V.
- Goebel, K.
- Garcia, A. R.
- Gawlik, A.
- Gilardoni, S.
- Glodariu, T.
- Goncalves, I. F.
- Gonzalez-Romero, E.
- Griesmayer, E.
- Guerrero, C.
- Gunsing, F.
- Harada, H.
- Heinitz, S.
- Heyse, J.
- Jenkins, D. G.
- Jericha, E.
- Kaeppeler, F.
- Kadi, Y.
- Kalamara, A.
- Kavrigin, P.
- Kimura, A.
- Kivel, N.
- Knapova, I.
- Kokkoris, M.
- Krticka, M.
- Kurtulgil, D.
- Leal-Cidoncha, E.
- Lederer, C.
- Leeb, H.
- Lerendegui-Marco, J.
- Lonsdale, S. J.
- Macina, D.
- Manna, A.
- Marganiec, J.
- Martinez, T.
- Masi, A.
- Mastinu, P.
- Mastromarco, M.
- Maugeri, E. A.
- Mazzone, A.
- Mendoza, E.
- Milazzo, P. M.
- Mingrone, F.
- Musumarra, A.
- Negret, A.
- Nolte, R.
- Oprea, A.
- Patronis, N.
- Pavlik, A.
- Perkowski, J.
- Porras, I.
- Praena, J.
- Quesada, J. M.
- Radeck, D.
- Rauscher, T.
- Reifarth, R.
- Rubbia, C.
- Ryan, J. A.
- Sabate-Gilarte, M.
- Saxena, A.
- Schillebeeckx, P.
- Schumann, D.
- Sedyshev, P.
- Smith, A. G.
- Sosnin, N. V.
- Stamatopoulos, A.
- Tagliente, G.
- Tain, J. L.
- Tarifeno-Saldivia, A.
- Tassan-Got, L.
- Valenta, S.
- Vannini, G.
- Variale, V.
- Vaz, P.
- Ventura, A.
- Vlachoudis, V.
- Vlastou, R.
- Wallner, A.
- Warren, S.
- Weiss, C.
- Woods, P. J.
- Wright, T.
- Zugec, P.
DOIAbstract
.The U-235(n, f ) cross section was measured at n_TOF relative to Li-6(n, t) and B-10(n,alpha) , with high resolution ( L=183.49(2) m) and in a wide energy range (25meV-170keV) with 1.5% systematic uncertainty, making use of a stack of six samples and six silicon detectors placed in the neutron beam. This allowed us to make a direct comparison of the yields of the U-235(n, f ) and of the two reference reactions under the same experimental conditions, and taking into account the forward/backward emission asymmetry. A hint of an anomaly in the 10-30keV neutron energy range had been previously observed in other experiments, indicating a cross section systematically lower by several percent relative to major evaluations. The present results ind...
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