Measurement of the 236U(n,f) cross section at fast neutron energies with Micromegas Detectors

In the present work, the measurement of the 236U(n,f) cross section was performed, with reference to the 238U(n,f) reaction. The measurements took place at the neutron beam facility of the National Centre for Scientific Research "Demokritos" (Greece) and the quasi-monoenergetic neutron bea...

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Main Authors: Diakaki M., Michalopoulou V., Tsinganis A., Axiotis A., Kalamara A., Kokkoris M., Lagoyiannis A., Patronis N., Stamatopoulos A., Vlastou R.
Format: Article
Language:English
Published: EDP Sciences 2020-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2020/15/epjconf_nd2019_05001.pdf
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author Diakaki M.
Michalopoulou V.
Tsinganis A.
Axiotis A.
Kalamara A.
Kokkoris M.
Lagoyiannis A.
Patronis N.
Stamatopoulos A.
Vlastou R.
author_facet Diakaki M.
Michalopoulou V.
Tsinganis A.
Axiotis A.
Kalamara A.
Kokkoris M.
Lagoyiannis A.
Patronis N.
Stamatopoulos A.
Vlastou R.
author_sort Diakaki M.
collection DOAJ
description In the present work, the measurement of the 236U(n,f) cross section was performed, with reference to the 238U(n,f) reaction. The measurements took place at the neutron beam facility of the National Centre for Scientific Research "Demokritos" (Greece) and the quasi-monoenergetic neutron beams were produced via the 2H(d,n)3He reaction in the energy range 4–10 MeV. Five actinide targets (two 236U, two 238U and one 235U) and the corresponding Micromegas detectors for the detection of the fission fragments were used. Detailed Monte Carlo simulations were performed, on one hand for the study of the neutron flux and energy distribution at the position of each target, and on the other hand for the study of the energy deposition of the fission fragments in the active volume of the detector. The mass and homogeneity of the actinide targets were experimentally determined via alpha spectroscopy and the Rutherford Backscattering Spectrometry, respectively. The experimental procedure, the analysis, the methodology implemented to correct for the presence of parasitic neutrons and the cross section results will be presented and discussed.
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spelling doaj.art-c5f73a0c07dc46709c00bdcf9478e31d2022-12-21T22:05:32ZengEDP SciencesEPJ Web of Conferences2100-014X2020-01-012390500110.1051/epjconf/202023905001epjconf_nd2019_05001Measurement of the 236U(n,f) cross section at fast neutron energies with Micromegas DetectorsDiakaki M.Michalopoulou V.Tsinganis A.0Axiotis A.1Kalamara A.2Kokkoris M.3Lagoyiannis A.4Patronis N.5Stamatopoulos A.6Vlastou R.7European Organization for Nuclear Research (CERN)National Centre for Scientific Research 'Demokritos'National Technical University of AthensNational Technical University of AthensNational Centre for Scientific Research 'Demokritos'University of IoanninaNational Technical University of AthensNational Technical University of AthensIn the present work, the measurement of the 236U(n,f) cross section was performed, with reference to the 238U(n,f) reaction. The measurements took place at the neutron beam facility of the National Centre for Scientific Research "Demokritos" (Greece) and the quasi-monoenergetic neutron beams were produced via the 2H(d,n)3He reaction in the energy range 4–10 MeV. Five actinide targets (two 236U, two 238U and one 235U) and the corresponding Micromegas detectors for the detection of the fission fragments were used. Detailed Monte Carlo simulations were performed, on one hand for the study of the neutron flux and energy distribution at the position of each target, and on the other hand for the study of the energy deposition of the fission fragments in the active volume of the detector. The mass and homogeneity of the actinide targets were experimentally determined via alpha spectroscopy and the Rutherford Backscattering Spectrometry, respectively. The experimental procedure, the analysis, the methodology implemented to correct for the presence of parasitic neutrons and the cross section results will be presented and discussed.https://www.epj-conferences.org/articles/epjconf/pdf/2020/15/epjconf_nd2019_05001.pdf
spellingShingle Diakaki M.
Michalopoulou V.
Tsinganis A.
Axiotis A.
Kalamara A.
Kokkoris M.
Lagoyiannis A.
Patronis N.
Stamatopoulos A.
Vlastou R.
Measurement of the 236U(n,f) cross section at fast neutron energies with Micromegas Detectors
EPJ Web of Conferences
title Measurement of the 236U(n,f) cross section at fast neutron energies with Micromegas Detectors
title_full Measurement of the 236U(n,f) cross section at fast neutron energies with Micromegas Detectors
title_fullStr Measurement of the 236U(n,f) cross section at fast neutron energies with Micromegas Detectors
title_full_unstemmed Measurement of the 236U(n,f) cross section at fast neutron energies with Micromegas Detectors
title_short Measurement of the 236U(n,f) cross section at fast neutron energies with Micromegas Detectors
title_sort measurement of the 236u n f cross section at fast neutron energies with micromegas detectors
url https://www.epj-conferences.org/articles/epjconf/pdf/2020/15/epjconf_nd2019_05001.pdf
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