A5085696893- Nuclear Physics and Applications
- Radiation Detection and Scintillator Technologies
- Nuclear reactor physics and engineering
- Particle Detector Development and Performance
- Radioactive contamination and transfer
- Medical Imaging Techniques and Applications
- Graphite, nuclear technology, radiation studies
- Radioactivity and Radon Measurements
- Advanced Semiconductor Detectors and Materials
- Nuclear Materials and Properties
- Radiation Therapy and Dosimetry
- Atomic and Subatomic Physics Research
- Nuclear and radioactivity studies
- Advanced X-ray and CT Imaging
- Radioactive element chemistry and processing
- Astronomical and nuclear sciences
- Nuclear physics research studies
- Atomic and Molecular Physics
- Fault Detection and Control Systems
- 3D Surveying and Cultural Heritage
- Nuclear Issues and Defense
- Electron and X-Ray Spectroscopy Techniques
- Risk and Safety Analysis
- Geochemistry and Geologic Mapping
- Distributed Sensor Networks and Detection Algorithms
CEA LIST
2016-2025
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2016-2025
Université Paris-Saclay
2020-2024
Laboratoire National Henri Becquerel
2023
Integra (United States)
2010-2022
CEA Paris-Saclay
2006-2020
Maison de la Simulation
2010-2014
SAPHIR Radiochirurgie
2013
CEA DAM Île-de-France
2011
CEA LETI
2007
Simultaneous localization and mapping (SLAM) techniques are widely researched, since they allow the simultaneous creation of a map sensors’ pose estimation in an unknown environment. Visual-based SLAM play significant role this field, as based on low-cost small sensor system, which guarantees those advantages compared to other sensor-based techniques. The literature presents different approaches methods implement visual-based systems. Among variety publications, beginner domain may find...
Abstract Locating radioactive hot spots presents a significant challenge for the nuclear industry and security applications, such as waste management, decommissioning, radiation protection, management of accidents. The detection fast-neutron emissions offers an alternative technique to gamma imaging verifying location materials, particularly in cases where imagers face challenges detection. In this study, we present performance prototype gamma-neutron system based on custom-fabricated...
Mass measurements with a relative precision of better than 1.5 x 10(-8) were performed on 22Mg and its reaction partners 21Na 22Na the ISOLTRAP Penning trap mass spectrometer at CERN, yielding excesses D(22Mg)=-399.92(27) keV, D(21Na)=-2184.71(21) D(22Na)=-5181.56(16) keV. The importance these results is twofold. First, comparative half-life (Ft value) has been obtained for superallowed beta decay to further test conserved-vector-current hypothesis. Second, resonance energy proton capture...
Localization of radioactive sources is a major issue for many applications in the nuclear industry. Gamma imaging powerful non-destructive technique, enabling to locate hot spots contained given area and well-adapted this topic. Industrial gamma cameras have been commercialized by various companies several years but present some limitations terms sensitivity, weight ease use comparison with requirements end-users. For years, CEA LIST has developing new generation camera, called GAMPIX. This...
This article presents the synthesis and blend of bismuth complexes in polystyrene based plastic scintillators. A specific design has enabled fabrication a scintillator loaded with up to 17 wt% bismuth. Tri-carboxylate triaryl compounds were used explore understand influence loading on two main criteria scintillation: light yield detection efficiency γ-rays. For gamma radiation an energy <200 keV, scintillators demonstrate ability produce photoelectric peak (total absorption peak) pulse...
The atomic masses of the neutron-rich krypton isotopes $^{84,86\ensuremath{-}95}\mathrm{Kr}$ have been determined with tandem Penning trap mass spectrometer ISOLTRAP uncertainties ranging from 20 to 220 ppb. short-lived $^{94}\mathrm{Kr}$ and $^{95}\mathrm{Kr}$ were measured for first time. radioactive nuclides $^{89}\mathrm{Kr}$ $^{91}\mathrm{Kr}$ disagree by 4 6 standard deviations, respectively, present Atomic-Mass Evaluation database. resulting modification surface respect two-neutron...
The MOBISIC project, funded by the System@tic Paris-Region cluster, is being developed in context of local crisis (attack bombing urban environment, confined space such as an underground train tunnel etc.) or specific event securing (soccer world cup, political meeting etc.). It consists conceiving, developing and experimenting a mobile, modular ('plug play') multi-sensors system. In this CEA LIST has suggested different solutions for nuclear risks detection identification. results embedding...
Abstract-The Alpha-activity resulting from the presence of actinides inside nuclear waste packages must be characterized, in order to select most appropriate means storage. Non-destructive active methods, based on fission process, allow global mass quantified. However, cases, these measurements provide no information nature isotopes. We are currently developing a method dedicated identification ( <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...
Pulse shape discrimination algorithms have been commonly implemented on embedded systems to discriminate neutron/gamma radiations detected by organic scintillators in several applications. These a number of limitations, especially when used with plastic scintillators, which low intrinsic discriminating ability. Machine learning (ML) models recently explored as way improve performance. Most these methods are proposed for liquid and stilbene do not address the integrated implementation....
The triple-trap mass spectrometer ISOLTRAP at ISOLDE/CERN has demonstrated the feasibility of spectrometry in-trap-decay product ions. This novel technique gives access to radionuclides, which are not produced directly ISOL-type radioactive ion beam facilities. As a proof principle, in-trap decay 37K+ been investigated in Penning trap filled with helium buffer gas. half-life mother nuclide was confirmed and recoiling 37Ar+ daughter contained within trap. ions either or were transferred...
This article presents a procedure for optimizing the charge comparison method (CCM) used pulse shape discrimination (PSD). Without prior knowledge of signals or readout system, our automatically optimizes integration periods maximizing ability radiation detector. is innovative in its adaptability and automation without being complicated to implement on standard computer. Another advantage this approach possibility use it even if operation system recording process signal not fully known....
Active neutron interrogation is a nondestructive active method that consists in inducing fission reactions on actinides (e.g., <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">235</sup> U and xmlns:xlink="http://www.w3.org/1999/xlink">239</sup> Pu) then detecting prompt delayed particles emitted further to these reactions. This required various application fields such as radiological characterization of nuclear waste packages homeland security....
Characterization of nuclear waste packages is crucial to optimize management (temporary storage, transport, final repository). Passive and active non-destructive methods are well-adapted this problem their coupling can be extremely useful in order data analysis. Photon activation analysis (PAA), based on the photofission process detection delayed particles emitted after reaction, a powerful tool for bulky concrete packages. Methods developed around PAA allow locate, identify quantify mass...
The yields of fission products are one the main characteristics process. In field nuclear waste package characterization, using Photon Activation Analysis (PAA), these needed in order to optimize a technique enabling identification actinides ( <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">235</sup> U, xmlns:xlink="http://www.w3.org/1999/xlink">238</sup> xmlns:xlink="http://www.w3.org/1999/xlink">239</sup> Pu), based on detection delayed...