Explanipedia

Measurement of Radioxenon Isotopes for Nuclear Explosion Detection Using a Coincident Β/Γ Detector Calibrated by Simulation Open

Hugo-Dev LENOUVEL, Anthony Der-Mesrobian Kabakian, J.-P. Fontaine, Mireille Morin, Anne de Vismes Ott , et al. · 2024

Anthropogenic Legacy of Potassium-40 in French Large Rivers Reconstructed from Sediment Cores Open

Frédérique Eyrolle, Amandine Morereau, Mathilde Zebracki, Valérie Nicoulaud Gouin, Hugo Lepage , et al. · 2024

Europe-Wide Atmospheric Radionuclide Dispersion by Unprecedented Wildfires in the Chernobyl Exclusion Zone, April 2020 Open

Olivier Masson, Oleksandr Romanenko, Olivier Saunier, Serhii Kirieiev, V.P. Protsak , et al. · 2021

From early April 2020, wildfires raged in the highly contaminated areas around the Chernobyl nuclear power plant (CNPP), Ukraine. For about 4 weeks, the fires spread around and into the Chernobyl exclusion zone (CEZ) and came within a few …

Analysis of gamma-ray spectra with spectral unmixing -Part I: Determination of the characteristic limits (decision threshold and statistical uncertainty) Open

Jiaxin Xu, J. Bobin, Anne de Vismes Ott, Christophe Bobin, Paul Malfrait · 2021

Poisson-statistics based spectral unmixing has been shown to be an efficient analysis tool for the radionuclides activity estimation from gamma-ray spectrometry measurements. However, the calculation of the corresponding characteristic lim…

Using the activity of naturally occurring radionuclides to identify the contribution of the Al industry to the atmosphere and plants Open

L. Pourcelot, Olivier Masson, Magali Beguin-Leprieur, B. Boulet, X. Cagnat , et al. · 2021

Analysis of gamma-ray spectra with spectral unmixing -Part II: Calibrations for the quantitative analysis of HPGe measurements Open

Jiaxin Xu, J. Bobin, Anne de Vismes Ott, Christophe Bobin, Paul Malfrait · 2021

In the framework of radioactivity measurements, the quantitative analysis of a gamma-ray spectrum depends not only on the analysis algorithm, but also on a proper instrument calibration and uncertainty assessment. In this paper, we first p…

Spectral unmixing applied to fast identification of γ-emitting radionuclides using NaI(Tl) detectors Open

H. Paradis, C. Bobin, J. Bobin, J. Bouchard, Valérie Lourenço , et al. · 2020

Consistency test of coincidence-summing calculation methods for extended sources Open

O. Sima, Anne de Vismes Ott, Mauro S. Dias, P. Dryák, L. Ferreux , et al. · 2019

Airborne concentrations and chemical considerations of radioactive ruthenium from an undeclared major nuclear release in 2017 Open

Olivier Masson, Georg Steinhäuser, Dorian Zok, Olivier Saunier, Hristo Angelov , et al. · 2019

Significance A massive atmospheric release of radioactive 106 Ru occurred in Eurasia in 2017, which must have been caused by a sizeable, yet undeclared nuclear accident. This work presents the most compelling monitoring dataset of this rel…

Learning to unmix from Poisson measurements with application to γ-spectroscopy Open

J. Bobin, Jiaxin Xu, Anne de Vismes Ott, Christophe Bobin · 2019

International audience

Potential Source Apportionment and Meteorological Conditions Involved in Airborne <sup>131</sup>I Detections in January/February 2017 in Europe Open

Olivier Masson, Georg Steinhäuser, H. Wershofen, Jerzy W. Mietelski, Helmut W Fischer , et al. · 2018

Traces of particulate radioactive iodine (¹³¹I) were detected in the European atmosphere in January/February 2017. Concentrations of this nuclear fission product were very low, ranging 0.1 to 10 μBq m^-3 except at one …

Coordinated underground measurements of gamma-ray emitting radionuclides for plasma physics research Open

F. Tzika, Mikael Hult, A. Fenyvesi, I. Bandac, Detlev Degering , et al. · 2016

Forty-eight samples made of CaF₂, LiF and YVO₄ were placed inside the KSTAR Tokamak and irradiated by neutrons and charged particles from eight plasma pulses. The aim was to provide information for plasma diagnostics.…

Variation in airborne 134Cs, 137Cs, particulate 131I and 7Be maximum activities at high-altitude European locations after the arrival of Fukushima-labeled air masses Open

Olivier Masson, J. Bieringer, Erika Brattich, A. Dalheimer, Sybille Estier , et al. · 2016

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