Measurement of the 240Pu(n,f) cross-section at the CERN n_TOF facility: First results from experimental area II (EAR-2)

Stamatopoulos, A. and Žugec, Petar and Bosnar, Damir and Wright, T. (2017) Measurement of the 240Pu(n,f) cross-section at the CERN n_TOF facility: First results from experimental area II (EAR-2). European Physical Journal Web of Conferences, 146. Art. no. 04030. ISSN 2100-014X

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Abstract

The accurate knowledge of the neutron-induced fission cross-sections of actinides and other isotopes involved in the nuclear fuel cycle is essential for the design of advanced nuclear systems, such as Generation-IV nuclear reactors. Such experimental data can also provide the necessary feedback for the adjustment of nuclear model parameters used in the evaluation process, resulting in the further development of nuclear fission models. In the present work, the 240Pu(n,f) cross-section was measured at CERN’s n_TOF facility relative to the well-known 235U(n,f) cross section, over a wide range of neutron energies, from meV to almost MeV, using the time-of-flight technique and a set-up based on Micromegas detectors. This measurement was the first experiment to be performed at n_TOF’s new experimental area (EAR-2), which offers a significantly higher neutron flux compared to the already existing experimental area (EAR-1). Preliminary results as well as the experimental procedure, including a description of the facility and the data handling and analysis, are presented.

Item Type: Article
Keywords: n_TOF, CERN, 240Pu, fission
Date: 2017
Subjects: NATURAL SCIENCES > Physics
Additional Information: © The Authors, published by EDP Sciences. This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
Divisions: Faculty of Science > Department of Physics
Publisher: EDP Sciences
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 19 Oct 2017 15:53
Last Modified: 19 Oct 2017 15:57
URI: http://digre.pmf.unizg.hr/id/eprint/5612

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