Measurement of the neutron-induced fission cross section of ²³⁰Th at the CERN n_TOF facility

Autor(en)

, V. Michalopoulou, A. Stamatopoulos, M. Diakaki, A. Tsinganis, R. Vlastou, M. Kokkoris, N. Patronis, Z. Eleme, D. Macina, L. Tassan-Got, N. Colonna, E. Chiaveri, A. Ventura, P. Schillebeeckx, J. Heyse, G. Sibbens, G. Alaerts, A. Borella, A. Moens, D. Vanleeuw, O. Aberle, V. Alcayne, S. Amaducci, J. Andrzejewski, L. Audouin, V. Babiano-Suarez, M. Bacak, M. Barbagallo, S. Bennett, E. Berthoumieux, J. Billowes, D. Bosnar, A. Brown, M. Busso, M. Caamaño, L. Caballero, F. Calviño, M. Calviani, D. Cano-Ott, A. Casanovas, F. Cerutti, G. Cortés, M. A. Cortés-Giraldo, L. Cosentino, S. Cristallo, L. A. Damone, P. J. Davies, M. Dietz, C. Domingo-Pardo, A. Pavlik

Abstrakt

The neutron-induced fission cross section of Th230 has been measured at the neutron time-of-flight facility n_TOF located at CERN. The experiment was performed at the experimental area EAR-1 with a neutron flight path of 185 m, using Micromegas detectors for the detection of the fission fragments. The Th230(n,f) cross section was determined relative to the U235(n,f) one, covering the energy range from the fission threshold up to 400 MeV. The results from the present work are compared with existing cross-section datasets and the observed discrepancies are discussed and analyzed. Finally, using the code empire 3.2.3 a theoretical study, based on the statistical model, was performed leading to a satisfactory reproduction of the experimental results with the proper tuning of the respective parameters, while for incident neutron energy beyond 200 MeV the fission of Th230 was described by Monte Carlo simulations.

Organisation(en)

Isotopenphysik

Externe Organisation(en)

National Technical University of Athens (NTUA), European Organization for Nuclear Research (CERN), European Commission Joint Research Centre, University of Ioannina, Institut pluridisciplinaire Hubert Curien, Istituto Nazionale di Fisica Nucleare (INFN), Roma, SCK-CEN Belgian Nuclear Research Centre, Centro de Investigaciones Energeticas Medioambientales y Tecnológica, INFN Laboratori Nazionali del Sud, Università degli Studi di Catania, University of Lodz, Universitat de València, Technische Universität Wien, Université Paris Saclay, University of Manchester, University of Zagreb, University of York, Università degli Studi di Perugia, Universidade de Santiago de Compostela (USC), Universitat Politècnica de Catalunya, Universidad de Sevilla, INAF-Osservatorio Astrofisico di Torino, Università degli Studi di Bari Aldo Moro, University of Edinburgh

Journal

Physical Review C

Band

108

Anzahl der Seiten

15

ISSN

2469-9985

DOI

https://doi.org/10.1103/PhysRevC.108.014616

Publikationsdatum

07-2023

Peer-reviewed

Ja

ÖFOS 2012

103014 Kernphysik

ASJC Scopus Sachgebiete

Nuclear and High Energy Physics

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/c3b6e5d9-a812-4f5a-be6c-cd39b01c0b91