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  1. Reactor safety

    The EU is concerned with ensuring that the highest standards of reactor safety are adopted and maintained. The Council Directive 2009/71/EURATOM establishing a Community framework for the nuclear safety of nuclear installations stipulates the application ...

    30 April 2014

  2. Hydrodynamic Analysis and Design of High-Level Radioactive Waste Disposal Model Penetrators

    Abstract not available VISINTINI Livio MARAZZI R. 1990 EUR- Scientific and Technical Research Reports Joint Research Centre Corporate Activities Nuclear safety and security nuclear reactor water waste modelling Corporate IET CEC http://publications.jrc.ec ...

    30 April 2014

  3. Lattice Location of Oxygen Atoms in UO2 Single Crystals Leached in Water.

    The effects of aqueous oxidation of (100)-oriented UO2 single crystals have been studied by means of the RBS/channeling technique. The) sublattice is analysed by using the 160(4He,4He)160 resonance at 3045 keV. A strong flux-peaking effect is observed in ...

    30 April 2014

  4. European Clearinghouse- Incidents Related to Reactivity Management- Contributing Factors, Failure Modes and Corrective Actions

    This work is part of the European Clearinghouse on Nuclear Power Plant Operational Experience Feedback (NPP-OEF) activity carried out at the Joint Research Centre/Institute for Energy (JRC/IE) with the participation of nine EU Regulatory Authorities. It i ...

    30 April 2014

  5. Lessons learnt from a crisis event: How to foster a sound safety culture

    Recent events in the nuclear industry have blamed a declining safety culture both on the utility and regulatory side as the major responsible. Confidence in the nuclear industry can be dramatically affected by such events. In this context, the present pap ...

    30 April 2014

  6. Some considerations on the role of LSD spikes in safeguarding nuclear reprocessing plants

    Large sized dried spikes (LSD) are a fundamental part of the fissile material control of irradiated nuclear fuel. They are applied to measure the uranium and plutonium content of dissolved fuel solutions from reprocessing plants using isotope dilution mas ...

    30 April 2014

  7. Current Practices for Risk Zoning Around Nuclear Power Plants in Comparison to Other Industry Sectors

    This paper analyses the background and current status of the information basis leading to the definition of risk and emergency zones around nuclear power plants (NPPs) in different countries in Europe and beyond. Although dependable plant-specific probabi ...

    30 April 2014

  8. Human Reliability Analysis in Low Power and Shut-down Probabilistic Safety Assessment: Outcomes of an International Initiative

    Since the beginning of the nuclear power generation, human performance has been a very important factor in all phases of the plant lifecycle: design, commissioning, operation, maintenance, surveillance, modification, and decommissioning. This aspect has b ...

    30 April 2014

  9. Simulation of the Mg(Ar) Ionization Chamber Currents by Different Monte Carlo Codes in Benchmark Gamma Fields

    High energy photon (over 10 MeV) and neutron beams adopted in radiobiology and radiotherapy always produce mixed neutron/gamma-ray fields. The Mg(Ar) ionization chambers are commonly applied to determine the gamma-ray dose because of its neutron insensiti ...

    30 April 2014

  10. Fluence Rate Effects on Irradiation Embrittlement of Model Alloys

    The Reactor Pressure Vessel (RPV) material of Nuclear Power Plants (NPP) is exposed to neutron irradiation during its operation. Such exposure generally induces degradation of the mechanical and physical properties of the materials: e.g. an increase of th ...

    30 April 2014

  11. An Overview of TACIS and PHARE Nuclear Safety Projects Related to Thermalhydraulics

    Since 1991, the European Commission has been supporting the transition in Eastern countries through the TACIS Programme (for the New Independent States) and PHARE Programme (for the Central Eastern European Countries). One priority for Tacis or Phare fund ...

    30 April 2014

  12. CFD Investigation of Hydrogen Combustion in a Simplified EPR Containment with CFX and Reacflow

    In case of a severe nuclear accident, large amounts of hydrogen could be generated by a metal-steam chemical reaction during the core melt down. The containment integrity can be jeopardised by the over-pressures that are generated by hydrogen explosions w ...

    30 April 2014

  13. Self-irradiation Induced Structural Changes in the Transplutonium Pyrochlores An2Zr2O7 (An=Am, Cf)

    We have pursued the fundamental chemistry of actinide pyrochlore oxides, An2Zr2O7 (An-Am, Cm, Bk, and Cf), using X-ray diffraction as well as optical spectroscopy. One recent facet of our studies has been to observe the structural changes of these materia ...

    30 April 2014

  14. 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

  15. Renewed Interest in Lead Cooled Fast Reactors

    In the last few years a number of compact designs of lead-alloy cooled systems have been promoted. Moreover, in Russia a design effort was started earlier on the pure lead-cooled BREST reactor but this effort does not appear to be strongly funded any more ...

    30 April 2014

  16. RAPHAEL: The European Union's (Very) High Temperature Reactor Technology Project

    In April 2005, as part of its 6th Framework Programme, the European Union has started a new 4-year Integrated Project on Very High Temperature Reactors (RAPHAEL: Reactor for Process Heat and Electricity). The European Commission together with the more tha ...

    30 April 2014

  17. International Network on Incorporation of Ageing Effects into PSA

    This paper describes the background and status of a new International Network on "Incorporating Ageing Effects into Probabilistic Safety Assessment". The Joint Research Centre (JRC) of the European Commission organized in September 2004 the kick ...

    30 April 2014

  18. Sensitivity Analysis of Neutron Cross-Sections Considered for Design and Safety Studies of LFR and SFR Generation IV Systems

    We evaluated the sensitivity of several design and safety parameters with regard to five different nuclear data libraries, JEF2.2, JEFF3.0, ENDF/B-VI.8, JENDL3.2, and JENDL3.3. More specifically, the effective multiplication factor, bum-up reactivity swin ...

    30 April 2014

  19. Implementation of Safety Culture International Guidelines at a Research Reactor

    Scope of the paper is to present the effort undertaken and the results achieved in adapting and implementing the IAEA Guidelines to the High Flux Reactor, HFR, in Petten, the Netherlands, as a step in supporting its Life Management Program. The methodolog ...

    30 April 2014

  20. Risk-Informed Support of Nuclear Power Plant Risk Zoning

    This paper analyses the background, objectives and current status of the information basis leading to the definition of risk and emergency zones around nuclear power plants (NPPs). Although dependable plant-specific Probabilistic Safety Assessment (PSA) o ...

    30 April 2014

  21. European approach for a Perennial Storage of Severe Accident Research Experimental Data as Resulting from EU Projects like SARNET, PHEBUS FP and ISTP

    In the fleet of European nuclear power plants, with a very low probability circumstances, severe accident sequences may result in core melting and plant damage leading to dispersal of radioactive material into the environment and thus constituting a healt ...

    30 April 2014

  22. Status of the SARNET Network on Severe Accidents

    After four and a half years of operation in the frame of the 6th Framework Programme (FP6) of the European Commission, SARNET (Severe Accidents Research NETwork of excellence) continues in the FP7 (project named SARNET2) from April 2009 for 4 years. Forty ...

    30 April 2014

  23. Ageing Probabilistic Safety Assessment Network- Achievement and Perspectives

    This paper presents the main achievements obtained in the frame of Joint Research Centre- Institute for Energy (JRC-IE) institutional project "Use of PSA for Evaluation of Ageing Effects". The project started in 2004, with 14 organizations which ...

    30 April 2014

  24. Status of Deuterium Nuclear Data for the Simulation of Heavy Water Reactors

    An overview is presented of the status of the deuterium nuclear data used in reactor physics simulations of heavy water (D2O) reactors and of ongoing activities to improve their accuracy. The main subjects having noticeable reactivity impact for critical ...

    30 April 2014

  25. XML RELATED MATDB TOOLS FOR DATA EXCHANGE AND INTEROPERABILITY

    The web-enabled materials properties database MatDB of the European Commission Joint Research Centre (EC-JRC) is a database application for the storage, retrieval and evaluation of experimentally measured materials data coming from European R&D projec ...

    30 April 2014