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  1. Quasi-stellar neutrons from the 7Li(p,n)7Be reaction with an energy-broadened proton beam

    Article investigating the effects of an energy-broadened proton beam on the spectrum of neutrons emitted in the thick-target 7Li(p,n) reaction at Ep = 1912 keV and on the experimental cross section of the 197Au(n,γ)198Au reaction in these conditions. Neut ...

    30 April 2014

  2. Overview of ASTEC Topic After 19 Months

    An overview of the results achieved in the SARNET (Severe Accident Research and management NETwork) Work-Packages "Users’ Support, Training, Integration and Adaptation", "Reactor Application and Benchmarking", benchmarks on and "P ...

    30 April 2014

  3. Residual Stress Prediction in Dissimilar Metal Weld Pipe Joints Using the Finite Element Method

    Dissimilar metal welds are commonly found in the primary piping of pressurized water nuclear reactor power plants. The safety assessment practice for such welds requires residual stresses to be taken into consideration. In the present paper the finite ele ...

    30 April 2014

  4. Hydrogen Sensors in Systems for Alternative Fuels

    The whole infrastructure of hydrogen production, transport, storage, distribution and final comsumption has to be monitored by means of adequate gas sensors. Several types are available both for safety monitoring and fuel delivery control at fuel cells an ...

    30 April 2014

  5. Consolidation of Scientific and Technological Expertise to Assess the Reliability of Reactor Pressure Vessel Embrittlement Prediction in Particular for the Arctic Area Plant (COBRA)

    The evaluation and prognosis of reactor pressure vessel (RPV) material embrittlement in WWERs and the allowable period of their safe operation are performed on the basis of impact test results of irradiated surveillance specimens. The main problem concern ...

    30 April 2014

  6. Nitrous Oxide (N2O) Emissions from Waste and Biomass to Energy Plants

    Nitrous oxide is a greenhouse gas with a global warming potential approximately 300 times that of CO2. N2O appears naturally in the atmosphere, oceans and tropic and temperate soils being the major natural sources of N2O. Nevertheless, the concentration o ...

    30 April 2014

  7. Fission product release and microstructure changes of irradiated MOX fuel at high temperatures

    Samples of irradiated MOX of 44 GWd/tHM mean burn-up were prepared by core drilling at three different radial positions of a fuel pellet. They were subsequently heated in a Knudsen effusion mass spectrometry system up to complete vaporization of the sampl ...

    30 April 2014

  8. PERFORMANCE EVALUATION OF A LANTHANUM BROMIDE SCINTILLATION DETECTOR FOR GAMMA-RAY ENERGIES UP TO 9 MeV

    Abstract: The Joint Research Centre of the European Commission develops instrumentation and analysis methods for non-destructive assay of nuclear materials and for detection of contraband materials. In relation to this, a new experimental device was desig ...

    30 April 2014

  9. PUNITA: a Pulsed Neutron Facility for Research in Illicit Trafficking and Nuclear Safeguards

    The Joint Research Centre has taken into operation a new experimental device designed for research in the fields of nuclear safeguards and illicit trafficking. The research projects currently undertaken include detection of shielded contraband materials, ...

    30 April 2014

  10. Annual Report 2010- Operation and Utilisation of the High Flux Reactor

    The High Flux Reactor (HFR) at Petten is managed by the Institute for Energy (IE) of the EC- DG JRC and operated by NRG who are also licence holder and responsible for commercial activities. The HFR operates at 45 MW and is of the tank-in-pool type, light ...

    30 April 2014

  11. Corrosion of Zirconium Alloys

    Zirconium alloys are widely used for fuel cladding and in pressure tubes, fuel channels (boxes), and fuel spacer grids in almost all water-cooled reactors: light water reactors such as the pressurized water reactor (PWR) and the boiling water reactor (BWR ...

    30 April 2014

  12. Hands-on training of IAEA Safeguards Surveillance Concepts using a VR based Application

    On this paper a Virtual Reality (VR) based application to teach and review basic surveillance concepts when installing cameras in controlled areas is presented. This application exploits VR's main advantages: interactivity, friendly human-machine int ...

    30 April 2014

  13. Abstract Booklet of the 9th International Conference on the Chemistry and Physics of the Actinide Elements (Actinides 2013), 21-26 July 2013, Karlsruhe, Germany

    The ACTINIDES 2013 conference was dedicated to providing a platform for discussion and information exchange for current research in the physics and chemistry of the actinide and the transactinide elements. Specific topics included fundamental materials sc ...

    30 April 2014

  14. Looking Back Over 40 Years on the Actinide Dioxides

    Since the actinide oxides became the choice for nuclear fuels in the 1950s, there has been great interest in understanding all physical properties and the associated electronic structure of these materials. One would think that with a clear O2- ion the ac ...

    30 April 2014

  15. Structure and other molecular properties of actinide trichlorides AnCl3 (An = Th-Cm)

    The ground-state molecular properties of the trichlorides of light actinides (An = Th-Cm) have been predicted by state-of-the-art quantum chemical calculations. The ground electronic states have been determined by multireference calculations at the CASPT2 ...

    30 April 2014

  16. High resolution Magic Angle Spinning Solid State Nuclear Magnetic Resonance Facility for Actinides-bearing compounds

    Solid-state Nuclear Magnetic Resonance (NMR) using Magic Angle Spinning (MAS) is a very powerful analytical method as it is sensitive to short-range and atomic scale structure. Moreover, this technique allows the study of amorphous samples, and minor crys ...

    30 April 2014

  17. Coupling XRD, EXAFS and 13C NMR to study the effect of the carbon stoichiometry on the local structure of UC1±x

    A series of uranium carbide samples, prepared by arc melting with a C/U ratio ranging from 0.96 to 1.04, has been studied by X-Ray Diffraction (XRD), 13C Nuclear Magnetic Resonance (NMR) and by Extended X-ray Absorption Fine Structure (EXAFS). XRD determi ...

    30 April 2014

  18. Magnetism and structural distortions in uranium sulfide under pressure

    Uranium sulde belongs to a class of uranium monochalcogenides that crystallize in the rock-salt structure and exhibit ferromagnetism at low temperature. The magnetism is believed to play a role in the low-temperature rhombohedral distortion, possibly due ...

    30 April 2014

  19. A new Facility for NDA-Safeguards Training

    On an initiative of the Joint Research Centre a European Nuclear Safety and Security School (EN3S) is being established. This School shall offer training on specialization topics related to the nuclear fuel cycle, one of it is "Nuclear Security, Safe ...

    30 April 2014

  20. Theoretical study of the electronic spectra of neutral and cationic PaO and PaO2

    The electronic spectra of neutral PaO and PaO2 and their mono- (PaO+, PaO2+) and dications (PaO2+, PaO22+) were studied by performing multiconfigurational quantum chemical calculations at the CASSCF/CASPT2 level of theory taking into account spin-orbit co ...

    30 April 2014

  21. Surface interaction of PuO2, UO2+x and UO3 with water ice

    The interaction of PuO2, UO2+x and UO3 with water ice was studied using ultraviolet photoelectron spectroscopy (UPS). Water was adsorbed at 80?120 K as thick ice multilayers. Surface modification after desorption of the ice around 200 K was investigated. ...

    30 April 2014

  22. A Uranium-Based UO2+-Mn2+ Single-Chain Magnet Assembled Trough Cation-Cation Interactions

    Single-chain magnets (SCMs) are materials composed of magnetically isolated one-dimensional (1D) units exhibiting slow relaxation of magnetization. The occurrence of SCM behavior requires the fulfillment of stringent conditions for exchange and anisotropy ...

    30 April 2014

  23. POTENTIAL STRESS ON CLADDING IMPOSED BY THE MATRIX SWELLING FROM ALPHA DECAY IN HIGH BURNUP SPENT NUCLEAR FUEL

    Studies using literature data were conducted on potential swelling of the spent nuclear fuel (SNF) matrix due to alpha decays. Swelling of the matrix may impose stress on cladding during long-term storage of SNF. The literature data were obtained for UO2 ...

    01 May 2015

  24. The Intriguing Hightemperature Studies of Plutonium Dioxide and Mixed Oxide Solid Solutions

    The oxides of the transuranic elements have been the subject of numerous investigations since the discovery of neptunium (Np) and plutonium (Pu) in 1940?1941. Similar to uranium oxides, they are stable under atmospheric conditions and do not require compl ...

    30 April 2014

  25. Antiferromagnetism in UO2 Thin Epitaxial Films

    Thin films (250-4500  Å) of epitaxial UO2 were produced by reactive sputtering on two different substrate materials: LaAlO3 and CaF2. Using the large enhancement present with resonant x-ray scattering using photons at the uraniumM4 absorption edge, antife ...

    30 April 2014