Preliminary results on the 233U capture cross section and alpha ratio measured at n_TOF (CERN) with the fission tagging technique

Autor: Bacak M., Aiche M., Bélier G., Berthoumieux E., Diakaki M., Dupont E., Gunsing F., Heyse J., Kopecky S., Laurent B., Leeb H., Mathieu L., Schillebeeckx P., Serot O., Taieb J., Vlachoudis V., Aberle O., Andrzejewski J., Audouin L., Balibrea J., Barbagallo M., Bečvář F., Billowes J., Bosnar D., Brown A., Caamaño M., Calviño F., Calviani M., Cano-Ott D., Cardella R., Casanovas A., Cerutti F., Chen Y. H., Chiaveri E., Colonna N., Cortés G., Cortés-Giraldo M. A., Cosentino L., Damone L. A., Domingo-Pardo C., Dressler R., Durán I., Fernández-Domínguez B., Ferrari A., Ferreira P., Finocchiaro P., Furman V., Göbel K., García A. R., Gawlik A., Gilardoni S., Glodariu T., Gonçalves I. F., González-Romero E., Griesmayer E., Guerrero C., Harada H., Heinitz S., Jenkins D. G., Jericha E., Käppeler F., Kadi Y., Kalamara A., Kavrigin P., Kimura A., Kivel N., Knapova I., Kokkoris M., Krtička M., Kurtulgil D., Leal-Cidoncha E., Lederer C., Lerendegui-Marco J., Meo S. Lo, Lonsdale S. J., Macina D., Manna A., Marganiec J., Martínez T., Masi A., Massimi C., Mastinu P., Mastromarco M., Maugeri E. A., Mazzone A., Mendoza E., Mengoni A., 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., Sabaté-Gilarte M., Saxena A., Schumann D., Sedyshev P., Smith A. G., Sosnin N. V., Stamatopoulos A., Tagliente G., Tain J. L., Tarifeño-Saldivia A., Tassan-Got L., Valenta S., Vannini G., Variale V., Vaz P., Ventura A., Vlastou R., Wallner A., Warren S., Weiss C., Woods P. J., Wright T., Žugec P.

Publikováno v: EPJ Web of Conferences, Vol 211, p 03007 (2019)

233U is of key importance among the fissile nuclei in the Th-U fuel cycle. A particularity of 233U is its small neutron capture cross-section, which is on average about one order of magnitude lower than the fission cross-section. The accuracy in the

Externí odkaz: https://doaj.org/article/8b09618201c1465ba13cd55b3b8b76a1

A compact multi-plate fission chamber for the simultaneous measurement of 233U capture and fission cross-sections

Autor: Bacak M., Berthoumieux E., Aiche M., Bélier G., Cardella R., Chatillon A., Diakaki M., Dupont E., Gunsing F., Heyse J., Kopecky S., Laurent B., Leeb H., Mathieu L., Schillebeeckx P., Taieb J., Vlachoudis V.

Publikováno v: EPJ Web of Conferences, Vol 146, p 03027 (2017)

233U plays the essential role of fissile nucleus in the Th-U fuel cycle. A particularity of 233U is its small neutron capture cross-section which is about one order of magnitude lower than the fission cross-section on average. Therefore, the accuracy

Externí odkaz: https://doaj.org/article/68d4a124439f47ffa005d2a346b21ee7

First simultaneous measurement of fission and gamma probabilities of 237U and 239Np via surrogate reactions

Autor: Marini P., Ducasse Q., Jurado B., Aiche M., Mathieu L., Barreau G., Czajkowski S., Tsekhanovich I., Moro A., Lei J., Giacoppo F., Gorgen A., Tornyi, Audouin L., Tassan-Got L., Wilson J. N., Gunsing F., Guttormsen M., Larsen A. C., Lebois M., Renstrom T., Rose S., Siem S., Tveten G. M., Wiedeking M., Serot O., Boutoux G., Méot V., Morillon B., Denis-Petit D., Roig O., Oberstedt S., Oberstedt A.

Publikováno v: EPJ Web of Conferences, Vol 122, p 12004 (2016)

Fission and gamma decay probabilities of 237U and 239Np have been measured, for the first time simultaneously in dedicated experiments, via the surrogate reactions 238U(3He, 4He) and 238U(3He,d), respectively. While a good agreement between our data

Externí odkaz: https://doaj.org/article/b37ce0ecdf7d40e3aaca29a60f61a706

Simultaneous determination of neutron-induced fission and radiative-capture cross sections from decay probabilities obtained with a surrogate reaction

Autor: Sanchez, R. Perez, Jurado, B., Meot, V., Roig, O., Dupuis, M., Bouland, O., Denis-Petit, D., Marini, P., Mathieu, L., Tsekhanovich, I., Aiche, M., Audouin, L., Cannes, C., Czajkowski, S., Delpech, S., Gorgen, A., Guttormsen, M., Henriques, A., Kessedjian, G., Nishio, K., Ramos, D., Siem, S., Zeiser, F.

Publikováno v: Phys. Rev. Lett. 125, 122502 (2020)

Reliable neutron-induced reaction cross sections of unstable nuclei are essential for nuclear astrophysics and applications but their direct measurement is often impossible. The surrogate-reaction method is one of the most promising alternatives to a

Externí odkaz: http://arxiv.org/abs/2002.05439

A new gas-based proton-recoil telescope for quasi-absolute neutron flux measurements between 0.2 and 2 MeV neutron energy

Autor: Marini, P., Mathieu, L., Aïche, M., Pedroza, J. -L., Chiron, T., Baron, P., Czajkowski, S., Druillole, F., Hellmuth, P., Jurado, B., Rebii, A., Tsekhanovich, I.

Absolute measurements of neutron flux are an essential prerequisite of neutron-induced cross section measurements, neutron beam lines characterization and dosimetric investigations. A new gaseous detector has been developed for measurements of 0.2 to

Externí odkaz: http://arxiv.org/abs/1901.06185