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  1. Neutron data

    The JRC is by far the largest provider of neutron data in the European Union. The data is generated by measurements at its two large-scale particle accelerators, and is used for the safe operation of nuclear reactors, handling of nuclear waste and investi ...

    22 June 2015

  2. 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

  3. Prompt gamma-ray energy in the frame of prompt neutron emission models

    A JRC contribution to a conference- the work  refers to the unique experimental data of prompt gamma-ray energy as a function of fragment measured for U-235(nth,f), very well described by the Point by Point model results obtained by using two methods of t ...

    30 April 2014

  4. Gamma-ray measurements with LaBr3: Ce detectors- thinking outside the box

    JRC contribution to a conference demonstrating how these detectors may be used to obtain information not only about gamma-rays, but also about neutrons, i.e. thinking "inside” and "outside” the box, respectively. Recently developed cerium-doped ...

    30 April 2014

  5. Design of a Rotating Facility for Extra-Corporal Treatment of an Explanted Liver with Disseminated Metastases by BNCT with an Epithermal Neutron Beam

    In 2001, at the TRIGA reactor of the University of Pavia (Italy), a patient suffering from diffuse liver metastases was successfully treated by BNCT. This encouraging outcome stimulated the Essen/Petten BNCT-group to investigate whether such an extra-corp ...

    30 April 2014

  6. Research and Standardization Activities on Neutron Methods at HFR Petten

    Thermal and sub-thermal neutrons are invaluable tools for investigations in fundamental, engineering and medical science. Most neutron applications are non-destructive, as neutrons penetrate deeply into most materials. In the engineering field, neutrons a ...

    30 April 2014

  7. Neutron spectra measurement and comparison of the HFR and THOR BNCT beams

    This paper aims to measure the spectra of HB11 (high flux reactor, HFR) and the Tsing Hua open-pool reactor (THOR) boron neutron capture therapy (BNCT) beams by multiple activation foils. The selfshielding corrections were made with the aid of MCNP calcul ...

    30 April 2014

  8. New work on updating and extending the Nuclear Data Standards

    An IAEA Data Development Project was initiated to provide a mechanism for allowing new experimental data and improvements in evaluation procedure to be incorporated into new evaluations of the standards. The work on this project is ongoing. In the past ve ...

    30 April 2014

  9. New Evaluation of Neutron Resonance Parameters of Tungsten

    The importance of tungsten in criticality safety calculation motivated a new evaluation of neutron resonance parameters for the most abundant isotopes 182, 183, 184, 186W. The new evaluation is mainly based on a combined analysis of experimental data alre ...

    30 April 2014

  10. Thin Tristearin Deposits as Solid Hydrogen-Rich Layers for Neutron Metrology

    Layers of solid material with a relatively high, constant content of hydrogen that is stable over al long period of timer are needed for recoil proton telecscopes and for precise determination of the cross section ratio of 235U(n,f)/H(n,n). Thin layers of ...

    30 April 2014

  11. 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

  12. 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

  13. Boron Analysis and Boron Imaging in Biological Materials for Boron Neutron Capture Therapy (BNCT)

    Boron Neutron Capture Therapy (BNCT) is based on the ability of the stable isotope 10B to capture neutrons, which leads to a nuclear reaction producing an alpha- and a 7Li-particle, both having a high biological effectiveness and a very short range in tis ...

    30 April 2014

  14. Neutron Flux from a 14-MeV Neutron Generator with Tungsten Filter for Research in NDA Methods for Nuclear Safeguards and Security

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

    30 April 2014

  15. Fast Neutron Irradiation Impact on Thermophysical Properties of Inert Materials Intended As Support Matrix for Transmutation Targets Bearing Minor Actinides

    This paper contains the results of density, lattice parameter, microstructure, thermal diffusivity and specific heat measurements performed on three neutron irradiated inert matrices: MgO, AI2O3 and MgaiO* The irradiation was carried out in Phenix as part ...

    30 April 2014

  16. A Preliminary Evaluation of Irradiation Damage in Model Alloys by Electric Properties Based Techniques

    The most important effect of the degradation by neutron irradiation is a decrease in the ductility of reactor pressure vessel (RPV) ferritic steels. The main way to determine the mechanical behaviour of the RPV steels is tensile and impact tests, from whi ...

    30 April 2014

  17. Preparation and characterisation of thin film nuclear targets for neutron physical measurements

    In the target preparation laboratory of the Insitute for Reference Materials and Measurements, lithium fluoride, 10B, gold and tristearin thin films are produced by physical vapour deposition for neutron spectroscopy experiments and for neutron cross sect ...

    30 April 2014

  18. Crystal Fields, Disorder and Antiferromagnetic Short-Range Order in Yb0.24Sn0.76Ru

    We report extensive measurements on a new compound (Yb0.24Ru0.76)Sn that crystallizes in the cubic CsCl structure. Valence band photoemission (PES) and L3 x-ray absorption show no divalent component in the 4f configuration of Yb. Inelastic neutron scatter ...

    30 April 2014

  19. Magnetic and Electronic Properties of NpFeGa5

    NpFeGa5 single crystals prepared by the Ga-flux method have been investigated by magnetization, specific heat and 237Np Mossbauer spectroscopy measurements. An antiferromagnetic (AF) transition has been observed at TN ~ 114 K. The second AF transition whi ...

    30 April 2014

  20. Neutron detector characterization for SCINTIA array

    SCINTIA is a new detector array of organic scintillators under development at the Institute for Reference Materials and Measurements (IRMM). The present design of SCINTIA includes NE213, p-therphenyl, stilbene and Li glass neutron detectors positioned in ...

    30 April 2014

  21. The Neutrons for Science Facility at SPIRAL-2

    The 'Neutrons For Science' (NFS) facility will be a component of SPIRAL-2, the future accelerator dedicated to the production of very intense radioactive ion beam, under construction at GANIL in Caen (France). NFS will be composed of a pulsed ne ...

    30 April 2014

  22. Evaluation of Neutron Cross Sections for Hafnium in the Resolved Resonance Range

    The international High Priority Request list notes:- "In the nuclear industry hafnium is used as neutron absorbing material to regulate the fission process. Interpretation of critical experiments with UOx fuel conducted by CEA in the AZUR zero-power ...

    30 April 2014

  23. Multipolar, Magnetic and Vibrational Lattice Dynamics in the Low Temperature Phase of Uranium Dioxide

    We report the results of inelastic neutron scattering experiments performed with triple-axis spectrometers to investigate the low-temperature collective dynamics in the ordered phase of uranium dioxide. The results are in excellent agreement with the pred ...

    30 April 2014

  24. Giant Magnetoelastic Interaction in UFe2

    Using the unique coverage of (Q,?) space available on the BRISP spectrometer, we have investigated the low Q dynamical response of a single crystal of UFe2. A strong inelastic signal was found with a dispersion corresponding to the transverse acoustic pho ...

    30 April 2014

  25. Partition between the fission fragments of the excitation energy and of the neutron multiplicity at scission in low-energy fission

    The partition between the light (L) and the heavy (H) fission fragments of the excitation energy available at scisssion is studied in the frame of the sudden approximation i.e., under the assumption that the neck rupture and the absorption of the neck pie ...

    30 April 2014