Explanipedia

Effect of radiation and temperature on high temperature resistant fiber Bragg gratings Open

Thomas Blanchet, Romain Cotillard, Adriana Morana, Rudy Desmarchelier, Emmanuel Marin , et al. · 2022

International audience

Design of an acoustic sensor for fission gas release characterization devoted to JHR environment measurements Open

F. Baudry, Eric Rosenkrantz, P. Combette, D. Fourmentel, C. Destouches , et al. · 2021

Among numerous research projects devoted to the improvement of the nuclear fuel behaviour knowledge, the development of advanced instrumentation for in-pile experiments in Material Testing Reactor is of great interest. In the frame of JHR …

Nuclear Heating Measurements for Fusion and Fission Relevant Materials in the Jsi Triga Reactor Open

H. Carcreff, Vladimir Radulović, D. Fourmentel, Klemen Ambrožič, C. Destouches , et al. · 2021

Online optical refractive index measurement in research reactor core Open

Gary Fourneau, Marion Agoyan, Guy Chemol, Ayoub Ladaci, Hicham Maskrot , et al. · 2021

There is a growing interest in fiber optic measurements for applications in radiation environments. Optical fiber sensors and diagnostics can monitor many parameters of interest inside a research reactor core. For some applications, fiber …

CEA-JSI Experimental Benchmark for validation of the modeling of neutron and gamma-ray detection instrumentation used in the JSI TRIGA reactor Open

Clément Fausser, Nicolas Thiollay, C. Destouches, L. Barbot, D. Fourmentel , et al. · 2021

Constant improvements of the computational power and methods as well as demands of accurate and reliable measurements for reactor operation and safety require a continuous upgrade of the instrumentation. In particular, nuclear sensors used…

Confocal chromatic sensor for displacement monitoring in research reactor Open

Marion Agoyan, Gary Fourneau, G. Cheymol, Ayoub Ladaci, Hicham Maskrot , et al. · 2021

Confocal chromatic microscopy is an optical technique allowing measuring displacement, thickness, and roughness with a sub-micrometric precision. Its operation principle is based on a wavelength encoding of the object position. Historicall…

Radiation hardness studies and detector characterisation at the JSI TRIGA reactor Open

Luka Snoj, Klemen Ambrožič, Aljaž Čufar, Tanja Goričanec, Anže Jazbec , et al. · 2020

The JSI TRIGA reactor features several in-core and ex-core irradiation facilities, each having different properties, such as neutron/gamma flux intensity, spectra and irradiation volume. A series of experiments and calculations was perform…

Characterization of the gamma flux in a tangential channel of the CENM TRIGA MARK II research reactor Open

A. Gruel, D. Fourmentel, C. El Younoussi, B. El Bakkari, Y. Boulaich , et al. · 2020

The CNESTEN (National Center for Energy Sciences and Nuclear Technology, Morocco) operates a TRIGA Mark II reactor, which can reach a thermal maximum power at steady state of 2 MW. In reactors devoted to research and experiments, it is man…

MONACO v2: Multipurpose and Integrated Data Acquisition System for On-line Neutron and Gamma Measurements Open

L. Barbot, D. Fourmentel, Grégoire de Izarra, C. Destouches, J-F. Villard , et al. · 2020

The CEA MONACO v2 a multichannel acquisition system dedicated to neutron and gamma measurements. It is unique as it integrates all the following features in one module: automatic generation of saturation curves, automatic generation of pul…

Computational support on the development of nuclear heating calorimeter detector design Open

Klemen Ambrožič, D. Fourmentel, H. Carcreff, Vladimir Radulović, Luka Snoj · 2020

Heating due to energy deposition of intense ionizing radiation in samples and structural materials of nuclear reactors poses severe limitations in terms of cooling requirements for safe reactor operation, especially in high neutron and gam…

Study of the Flow Temperature and Ring Design Influence on the Response of a New Reduced-Size Calorimetric Cell for Nuclear Heating Quantification Open

A. Volte, C. Reynard-Carette, J. Brun, C. De Vita, M. Carette , et al. · 2018

This paper concerns experimental studies of different designs of a new compact calorimetric cell under laboratory conditions. This kind of cell is used for the measurement of the nuclear heating rate inside Material Testing Reactors thanks…

High temperature ultrasonic sensor for fission gas characterization in MTR harsh environment Open

Oleksandr Gatsa, P. Combette, E. Rozenkrantz, D. Fourmentel, C. Destouches , et al. · 2018

In the contemporary world, the measurements in hostile environment is one of the predominant necessity for automotive, aerospace, metallurgy and nuclear plant. The measurement of different parameters in experimental reactors is an importan…

Calculations to Support On-line Neutron Spectrum Adjustment by Measurements with Miniature Fission Chambers in the JSI TRIGA Reactor Open

Tanja Kaiba, Vladimir Radulović, Gašper Žerovnik, Luka Snoj, D. Fourmentel , et al. · 2018

Preliminary calculations were performed with the aim to establish optimal experimental conditions for the measurement campaign within the collaboration between the Jožef Stefan Institute (JSI) and Commissariat à l’Énergie Atomique et aux É…

Reaction Rate Benchmark Experiments with Miniature Fission Chambers at the Slovenian TRIGA Mark II Reactor Open

Ž. Štancar, Tanja Kaiba, Luka Snoj, L. Barbot, C. Destouches , et al. · 2018

A series of fission rate profile measurements with miniature fission chambers, developed by the Commisariat á l’énergie atomique et auxénergies alternatives, were performed at the Jožef Stefan Institute’s TRIGA research reactor. Two types …

Study of the Flow Temperature and Ring Design Influence on the Response of a New Reduced-Size Calorimetric Cell for Nuclear Heating Quantification Open

A. Volte, J. Brun, C. De Vita, M. Carette, T. Fiorido , et al. · 2018

This paper concerns experimental studies of different designs of a new compact calorimetric cell under laboratory conditions. This kind of cell is used for the measurement of the nuclear heating rate inside Material Testing Reactors thanks…

In-Pile Qualification of the Fast-Neutron-Detection-System Open

D. Fourmentel, J-F. Villard, C. Destouches, B. Geslot, L. Vermeeren , et al. · 2018

In order to improve measurement techniques for neutron flux assessment, a unique system for online measurement of fast neutron flux has been developed and recently qualified in-pile by the French Alternative Energies and Atomic Energy Comm…

Evaluation of neutron flux and fission rate distributions inside the JSI TRIGA Mark II reactor using multiple in-core fission chambers Open

Tanja Goričanec, Gašper Žerovnik, L. Barbot, D. Fourmentel, C. Destouches , et al. · 2017

Validation of the first prototype high temperature ultrasonic sensor for gas composition measurement Open

Oleksandr Gatsa, Eric Rosenkrantz, D. Fourmentel, C. Destouches, P. Combette , et al. · 2017

The measurement of substances mixtures properties by ultrasonic approach represents a high interest for industrial sector. In particular, the evaluation of fission gas mixtures in nuclear combustion rod under harsh temperature and radiativ…

Delayed Gamma Measurements in Different Nuclear Research Reactors Bringing Out the Importance of Their Contribution in Gamma Flux Calculations Open

D. Fourmentel, Vladimir Radulović, L. Barbot, J-F. Villard, Gašper Žerovnik , et al. · 2016

International audience

Improvements in neutron and gamma measurements for material testing reactors Open

J-F. Villard, C. Destouches, L. Barbot, D. Fourmentel, V. Radulovic · 2016

International audience

Monte Carlo Simulation Study of a Differential Calorimeter Measuring the Nuclear Heating in Material Testing Reactors Open

H. Amharrak, C. Reynard-Carette, A. Lyoussi, M. Carette, J. Brun , et al. · 2016

International audience

Measurements of miniature ionization chamber currents in the JSI TRIGA Mark II reactor demonstrate the importance of the delayed contribution to the photon field in nuclear reactors Open

Vladimir Radulović, D. Fourmentel, L. Barbot, Jean-François Villard, Tanja Kaiba , et al. · 2015

Calculation to experiment comparison of SPND signals in various nuclear reactor environments Open

L. Barbot, Vladimir Radulović, D. Fourmentel, Luka Snoj, M. Tarchalski , et al. · 2015

In the perspective of irradiation experiments in the future Jules Horowitz Reactor (JHR), the Instrumentation Sensors and Dosimetry Laboratory of CEA Cadarache (France) is developing a numerical tool for SPND design, simulation and operati…

Acoustic Sensors for Fission Gas Characterization in MTR Harsh Environment Open

F. Very, Eric Rosenkrantz, D. Fourmentel, C. Destouches, J-F. Villard , et al. · 2015

International audience

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