Romain Coulon
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View article: Transforming solid-state nuclear magnetic resonance towards a chemistry-ready technique
Transforming solid-state nuclear magnetic resonance towards a chemistry-ready technique Open
Solid-state nuclear magnetic resonance (solid-state NMR) is an essential tool for probing local structure and dynamics in complex materials, yet its uptake in the broader chemistry community has remained limited by technical and operationa…
View article: Activity standardization and determination of nuclear decay data of 212Pb at LNE-LNHB and first measurements in the SIR at BIPM
Activity standardization and determination of nuclear decay data of 212Pb at LNE-LNHB and first measurements in the SIR at BIPM Open
Lead-212/Bismuth-212 is a promising radiopharmaceutical with high therapeutic potential for Targeted Alpha Therapy. In this paper, the activity standardization of 212Pb in equilibrium with its progeny was addressed by means of s…
View article: A fast and reliable algorithm for the detection of low-radioactivity moving sources based upon an adaptive filter and a MACD estimator
A fast and reliable algorithm for the detection of low-radioactivity moving sources based upon an adaptive filter and a MACD estimator Open
View article: ScintiPulses: A Python Package to Simulate Signal from Scintillation Detectors
ScintiPulses: A Python Package to Simulate Signal from Scintillation Detectors Open
The scintiPulses Python package provides a versatile and comprehensive toolkit for simulating pulse signals from scintillation detectors. It accurately models scintillation pulse dynamics while incorporating various noise sources, includin…
View article: Building a Radionuclide Metrology Algorithm Comparison Platform (NuCodeComP): Insights from Rapid Integration with Microsoft PowerApps
Building a Radionuclide Metrology Algorithm Comparison Platform (NuCodeComP): Insights from Rapid Integration with Microsoft PowerApps Open
An essential step in radionuclide activity measurement comparisons is the counting signal processing performed by laboratory-specific software. This has led to initiatives comparing software performance using a unique dataset from a list-m…
View article: Case Study of Genetic Algorithms in Metrology: Assessment of Inter-laboratory Comparisons
Case Study of Genetic Algorithms in Metrology: Assessment of Inter-laboratory Comparisons Open
This study reviews conventional consensus estimation methods, including mean-based, median-based, and pooling-based approaches, and evaluates their performance under challenging scenarios involving outliers and deviations from normality. W…
View article: Description of the Ballistic Dependance in Triple-to-Double Coincidence Ratio (Tdcr) Method Through a Surrogate Optical Model
Description of the Ballistic Dependance in Triple-to-Double Coincidence Ratio (Tdcr) Method Through a Surrogate Optical Model Open
View article: Tdcrpy: A Python Package for Tdcr Measurements
Tdcrpy: A Python Package for Tdcr Measurements Open
View article: Ambient humidity, the overlooked influencer of radioactivity measurements
Ambient humidity, the overlooked influencer of radioactivity measurements Open
When verifying the validity of the exponential-decay law through 137 precise decay rate measurement series at various nuclear laboratories, minor violations have been observed in the shape of annual cycles in the residuals with different a…
View article: Evaluation of long-term robustness of the International System of Reference (SIR) used in radionuclide metrology based on the meta-analysis of its machine-readable database
Evaluation of long-term robustness of the International System of Reference (SIR) used in radionuclide metrology based on the meta-analysis of its machine-readable database Open
In support of the CIPM MRA, the reference system in radionuclide metrology (SIR) is a unique experimental facility that has been able to provide continuous key comparison results for 72 radionuclides for 46 years. These measurement data ar…
View article: Machine-readable data and metadata of international key comparisons in radionuclide metrology
Machine-readable data and metadata of international key comparisons in radionuclide metrology Open
The digitalization of key comparisons in radionuclide metrology is being studied at the BIPM. Results of comparisons are made available on the BIPM KCDB platform where a PDF/A document can be downloaded. Access to the metadata contained in…
View article: Traceability for nuclear medicine: the status of primary radioactivity standards
Traceability for nuclear medicine: the status of primary radioactivity standards Open
The medical use of radionuclides depends on the accurate measurement of activity (Bq) for regulatory compliance, patient safety, and effective treatment or image quality. In turn, these measurements rely on the realization of primary stand…
View article: Advancements in Gd-based neutron detection (2): Proton–gamma correlation approach
Advancements in Gd-based neutron detection (2): Proton–gamma correlation approach Open
View article: The new international reference system for pure α- and pure β-emitting radionuclides and some electron capture decaying radionuclides by liquid scintillation counting
The new international reference system for pure α- and pure β-emitting radionuclides and some electron capture decaying radionuclides by liquid scintillation counting Open
View article: Stop squandering data: make units of measurement machine-readable
Stop squandering data: make units of measurement machine-readable Open
View article: Update of the BIPM comparison BIPM.RI(II)-K1.Ce-139 of activity measurements of the radionuclide <sup>139</sup>Ce to include the 2019 result of the NMISA (South Africa) and the 2022 result of the LNE-LNHB (France)
Update of the BIPM comparison BIPM.RI(II)-K1.Ce-139 of activity measurements of the radionuclide <sup>139</sup>Ce to include the 2019 result of the NMISA (South Africa) and the 2022 result of the LNE-LNHB (France) Open
Main text Since 1976, 13 laboratories have submitted 27 samples of 139 Ce to the International Reference System (SIR) for activity comparison at the Bureau International des Poids et Mesures (BIPM), with comparison identifier BIPM.RI(II)-K…
View article: Evaluation of the Long-Term Stability of Metrology Instruments
Evaluation of the Long-Term Stability of Metrology Instruments Open
This chapter aims to emphasize the issue of the long-term stability of instruments used in metrology. This issue is a concern mentioned in the IEC/ISO17025:2017 standard and the JCGM100:2008 guide. Control charts are mentioned in these key…
View article: Final report of the new BIPM comparison BIPM.RI(II)-K1.Ra-223 of activity measurements of the radionuclide <sup>223</sup> Ra including the 2014 result of the NPL (United Kingdom), the 2014 result of the PTB (Germany) and the 2018 result of the LNE-LNHB (France)
Final report of the new BIPM comparison BIPM.RI(II)-K1.Ra-223 of activity measurements of the radionuclide <sup>223</sup> Ra including the 2014 result of the NPL (United Kingdom), the 2014 result of the PTB (Germany) and the 2018 result of the LNE-LNHB (France) Open
Main text Since 2014, 3 laboratories have submitted 3 samples of 223 Ra to the International Reference System (SIR) for activity comparison at the Bureau International des Poids et Mesures (BIPM), with comparison identifier BIPM.RI(II)-K1.…
View article: The CCRI(II)-K2.Fe-55.2019 key comparison of activity concentration measurements of a <sup>55</sup> Fe solution
The CCRI(II)-K2.Fe-55.2019 key comparison of activity concentration measurements of a <sup>55</sup> Fe solution Open
Main text A comparison of the activity concentration of an 55 Fe solution was organized by the POLATOM under the auspices of the CCRI(II). The solution was sent to thirteen laboratories; ready-to-measure sources were also prepared using th…
View article: Metrological characterization of intense (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e1583" altimg="si4.svg"><mml:mi>α</mml:mi></mml:math>, n) neutron sources by coupling of non-destructive measurements
Metrological characterization of intense (, n) neutron sources by coupling of non-destructive measurements Open
View article: On the photomultiplier-tube asymmetry in TDCR systems
On the photomultiplier-tube asymmetry in TDCR systems Open
View article: The international reference system for pure β-particle emitting radionuclides: an investigation of the reproducibility of the results
The international reference system for pure β-particle emitting radionuclides: an investigation of the reproducibility of the results Open
International audience
View article: Investigation of fission chamber response in the frame of fuel debris localization measurements at Fukushima Daiichi
Investigation of fission chamber response in the frame of fuel debris localization measurements at Fukushima Daiichi Open
View article: Characterizing low-activity waste containers: A case study for Compton Suppression Systems under challenging signal-to-noise ratio
Characterizing low-activity waste containers: A case study for Compton Suppression Systems under challenging signal-to-noise ratio Open
View article: Nanoparticles-loaded plastic scintillators for fast/thermal neutrons/gamma discrimination: Simulation and results
Nanoparticles-loaded plastic scintillators for fast/thermal neutrons/gamma discrimination: Simulation and results Open
View article: Inverse Problem Approach for the underwater localization of Fukushima Daiichi fuel debris with fission chambers
Inverse Problem Approach for the underwater localization of Fukushima Daiichi fuel debris with fission chambers Open
View article: Advancements in Gd-based neutron detection: <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll" id="d1e663" altimg="si214.gif"><mml:mi>γ</mml:mi></mml:math>–<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll" id="d1e668" altimg="si214.gif"><mml:mi>γ</mml:mi></mml:math> coincidence approach
Advancements in Gd-based neutron detection: – coincidence approach Open
View article: Multilayer phoswich scintillators for neutron / gamma discrimination
Multilayer phoswich scintillators for neutron / gamma discrimination Open
View article: Ex-Vessel Delayed Neutron Detection Systems for the ASTRID Sodium-Cooled Fast Reactor
Ex-Vessel Delayed Neutron Detection Systems for the ASTRID Sodium-Cooled Fast Reactor Open
International audience
View article: Recent Developments in Count Rate Processing Associated with Radiation Monitoring Systems
Recent Developments in Count Rate Processing Associated with Radiation Monitoring Systems Open
This chapter presents some recent data processing developments associated with radiation monitoring systems. Radiation monitors have to continuously provide count rate estimations with accuracy and precision. A filtering technique based on…