K. Kaperoni

Diamond Detector Development for Neutron Measurements at the n_TOF Facility (CERN)

K. Kaperoni, Μαρία Κ. Διακάκη, Michael Bacak, Christina Weiss et autres

Diamond is a highly promising material for neutron detection due to its radiation hardness, fast response, and high signal-to-noise ratio. A single-crystal diamond (sCVD) detector with a 6LiF conversion layer was developed in collaboration with CIVIDEC Instrumentation for in-beam measurements at the …

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Development and Evaluation of a Proton Irradiation Setup for Radiobiological Studies Using Low-Energy Protons with a Polyenergetic Spectrum (0–5.5 MeV, Mean 4.1 MeV)

Spyridon Zonitsas, Angeliki Gkikoudi, K. Kaperoni, Sotiria Triantopoulou et autres

Proton therapy offers superior dose localization, yet the biological effects of low-energy protons relevant to superficial tissues remain underexplored. We report the design and validation of a proton irradiation setup developed at the Tandem Accelerator of NCSR “Demokritos” for controlled radiobiological experiments. …

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Experimental and Monte Carlo study of semiconductor detectors response to 2.45 MeV–3.95 MeV neutrons at NCSR “Demokritos”

K. Kaperoni, M. Diakaki, M. Kokkoris, C. Weiss et autres

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Diamond dosimeter for the measurement of the proton beam impact position on a neutron spallation target

Christina Weiss, Erich Griesmayer, E. Jericha, H. Frais-Kölbl et autres

In close proximity to the spallation neutron source of the neutron time-of-flight facility n_TOF at CERN, diamond detectors are installed to measure the fast neutron beam. The detectors are located 2.3 m from the center of the spallation target at 100° with …

New measurement of $$^{50}$$Cr and $$^{53}$$Cr (n,$$\gamma $$) cross sections at n_TOF: a call for chromium nuclear data revision

P. Pérez-Maroto, C. Guerrero, A. Casanovas, B Fernández et autres

Abstract $$^{50}$$ 50 Cr and $$^{53}$$ 53 Cr are very relevant in criticality safety benchmarks related to nuclear reactors. The discrepancies of up to 30% between the neutron capture cross section evaluations have an important effect on the $$k_{eff}$$ k eff and …

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Low-uncertainty measurement of the 239Pu(n,f) cross section at n_TOF in a very broad energy range from 0.02 eV up to 10 MeV

A. Sánchez-Caballero, D. Cano‐Ott, E. Mendoza, V. Alcayne et autres

International audience

Comparative analysis of sCVD and SiC detectors for neutron measurements in nuclear fusion

Julian Melbinger, M. Axiotis, S. Chasapoglou, M. Diakaki et autres

The relative neutron detection efficiencies of single-crystal chemical vapour deposition (sCVD) diamond and silicon carbide (SiC) detectors were investigated. Measurements were conducted at four neutron energies ranging from 2.45 MeV to 3.95 MeV. The neutron detection efficiency of sCVD was found to …

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The CERN n_TOF NEAR station for astrophysics- and application-related neutron activation measurements

N. Patronis, A. Mengoni, N. Colonna, Matteo Cecchetto et autres

Abstract A new experimental area, the NEAR station, has recently been built at the CERN n_TOF facility, at a short distance from the spallation target (3 m). The new area, characterized by a neutron beam of very high flux, has been designed …

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Neutron-induced fission studies of the NTUA at the neutron facility of NCSR “Demokritos” :The case of the 234U(n,f) cross section at the first chance fission threshold

Μ. Diakaki, Sotiris Alexandros Kopanos, M. Kokkoris, N. Kyritsis et autres

Studies of neutron-induced fission reaction cross section data are required in nuclear reactor applications as well as for the deeper understanding of the fission process. To this end, an extensive study of neutron-induced fission cross-sections at and above the fission threshold of …

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Measurement of the 235U fission cross section relative to the standard 10B(n, α ) reaction at the CERN n_TOF facility: Results for E n < 2 eV

V. Michalopoulou, Μ. Diakaki, N. Kyritsis, M. Kokkoris et autres

The neutron induced fission of 235 U is a very important reaction for nuclear technology applications and for the design of future systems to produce clean and safe energy. In addition, it is used as a reference reaction for neutron cross-section measurements, …

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Recent highlights and prospects on (n,γ) measurements at the CERN n_TOF facility

J. Lerendegui-Marco, V. Alcayne, V. Babiano-Suarez, M. Bacak et autres

Neutron capture cross-section measurements are fundamental in the study of the slow neutron capture (s-) process of nucleosynthesis and for the development of innovative nuclear technologies. One of the best suited methods to measure radiative neutron capture (n,γ) cross sections over the …

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Towards a new generation of solid total-energy detectors for neutron-capture time-of-flight experiments with intense neutron beams

J. Balibrea-Correa, V. Babiano-Suarez, J. Lerendegui-Marco, C. Domingo-Pardo et autres

Challenging neutron-capture cross-section measurements of small cross sections and samples with a very limited number of atoms require high-flux time-of-flight facilities. In turn, such facilities need innovative detection setups that are fast, have low sensitivity to neutrons, can quickly recover from the …

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