Preliminary results on the ²³³U α-ratio measurement at n_TOF

Author(s)

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

Abstract

U-233 is the fissile nuclei in the Th-U fuel cycle with a particularily small neutron capture cross setion which is on average about one order of magnitude lower than its fission cross section. Hence, the measurement of the U-233(n,gamma) cross section relies on a method to accurately distinguish between capture and fission gamma-rays. A measurement of the U-233 alpha-ratio has been performed at the n_TOF facility at CERN using a so-called fission tagging setup, coupling nTOF 's Total Absorption Calorimeter with a novel fission chamber to tag the fission gamma-rays. The experimental setup is described and essential parts of the analysis are discussed. Finally, a preliminary U-233 alpha-ratio is presented.

Organisation(s)

Isotope Physics

External organisation(s)

Technische Universität Wien, York University, University of Edinburgh, Australian National University

No. of pages

5

DOI

https://doi.org/10.1051/epjconf/202023901043

Publication date

2020

Peer reviewed

Yes

Austrian Fields of Science 2012

103014 Nuclear physics

Keywords

Portal url

https://ucris.univie.ac.at/portal/en/publications/preliminary-results-on-the-233u-ratio-measurement-at-ntof(72d2b229-b48d-4e6b-b6d7-89369039b6c3).html