A5048287072- Astro and Planetary Science
- Nuclear Physics and Applications
- Nuclear Materials and Properties
- Nuclear reactor physics and engineering
- Radioactive element chemistry and processing
- Photochemistry and Electron Transfer Studies
- Planetary Science and Exploration
- Fusion materials and technologies
- Spectroscopy and Quantum Chemical Studies
- Methane Hydrates and Related Phenomena
- Luminescence and Fluorescent Materials
- Nuclear materials and radiation effects
- Spacecraft and Cryogenic Technologies
- Geological and Geochemical Analysis
- Advanced ceramic materials synthesis
- Isotope Analysis in Ecology
- Molecular Junctions and Nanostructures
- Mass Spectrometry Techniques and Applications
- Atomic and Subatomic Physics Research
- Marine and environmental studies
- earthquake and tectonic studies
- Groundwater and Isotope Geochemistry
- Advanced Chemical Physics Studies
- Solar and Space Plasma Dynamics
- Cold Fusion and Nuclear Reactions
Laboratoire de Physique des deux infinis Bordeaux
2002-2024
Université de Bordeaux
1988-2022
Centre National de la Recherche Scientifique
1994-2022
Institut National de Physique Nucléaire et de Physique des Particules
2012-2021
Laboratoire de Chimie
2007-2013
Technische Universität Berlin
1993
Centre de Haute Energie
1987-1990
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotophysics of donor-acceptor substituted stilbenes. A time-resolved fluorescence study using selectively bridged dimethylamino cyano model compoundsRene Lapouyade, Konstantin Czeschka, Wilfried Majenz, Wolfgang Rettig, Eric Gilabert, and Claude RulliereCite this: J. Phys. Chem. 1992, 96, 24, 9643–9650Publication Date (Print):November 1, 1992Publication History Published online1 May 2002Published inissue 1 November...
The Cluster Dynamics method is assessed for the investigation of fission gas behaviour in a krypton-implanted and annealed UO 2 sample. simulation results are then compared to Thermal Desorption Spectroscopy (TDS) data. A release mechanism proposed: initial burst related krypton migration via an interstitial mechanism, while second stage process can be accounted by diffusion substitutional position. This latter compatible with coefficient 4.10 -21 m²/s.
Using an optical Kerr shutter and sophisticated automatization procedure, we have shown that it is possible to record routinely, with a good accuracy, in experiment consuming comfortable time, time-resolved emission spectra of short-lived species the time scale 10 ps spectral range 3900–9000 Å. This system will allow us obtain better understanding ultrafast dynamics solution, where changes provide new insight.
A new RIS-TOF instrument, called FAKIR (Facility for Analyzing Krypton Isotope Ratios), has been developed at CENBG in order to measure Kr isotope ratios with an extremely high sensitivity.
Abstract— Two spherical targets made of gabbro with a radius 25 cm and steel 10 were irradiated isotropically 1600 MeV protons at the SATURNE synchrotron Laboratoire National Saturne (LNS)/CEN Saclay, in order to simulate production nuclides meteorites induced by galactic cosmic‐ray space. These experiments supply depth‐dependent rate data for wide range radioactive stable isotopes up 28 target elements. In this paper, we report results 78 Kr, 80–86 Kr Rb, Sr, Y Zr 124 Xe, 126 128–132 134...
A new heating and gas treatment line for Thermo-Desorption Spectrometry (TDS) of noble gases (He, Ne, Ar, Kr, Xe) is presented. It was built with the primary objective to offer advanced temperature controls capabilities while working in a cold environment. By choosing high-power continuous wave laser as source using proportional-integral-derivative controller system, TDS can now be performed fast highly steady ramps (e.g., less than 1 °C deviation from set point ≤1 s-1 ramps). Sample over...
A double focusing sector field mass filter used in Nier–Johnson geometry has been built order to perform Kr isotope enrichment for 81Kr and 85Kr isotopes. The principle consists implanting Kr+ ions accelerated at 7 keV Al foils after separation using the magnetic sector. specific ion source designed capable of generating high beams (>0.5 μA) transfer into collecting 3 5 h significant fractions large samples (1015 1016 atoms) initially introduced instrument. Implanted isotopes can be further...
Abstract— The L/LL5 chondrite Knyahinya had an approximately spherical shape, and as it experienced a single stage exposure history, represents very interesting object to study depth profiles of cosmic‐ray‐produced nuclide concentrations. Such data are required improve validate model calculations production rates. We report Ne, Ar, Kr Xe isotopic abundances in five bulk samples. adopted procedure noble gas extraction included two pyrolysis steps at 450 °C 650 °C, respectively, followed by...