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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. A novel method to produce homogeneous certified reference materials for neutron activation analysis

    14 Jan 2016 Scientists from the JRC, in collaboration with colleagues from the University of Leoben (Austria), the Atomic Centre Bariloche (Argentina) and Umicore (Belgium) developed a novel approach for the production of an Al-Au alloy certified referenc ...

    14 January 2016

  3. Target Preparation laboratory

    The JRC produces and characterises a variety of targets for high-precision measurements of neutron-reaction data at the GELINA and Van de Graaff accelerators. Targets The targets are thin stable deposits of 6,7,nat LiF, metallic Li, 10 B, tristearine or t ...

    14 July 2014

  4. Comparison of resonance integrals of cross sections from JEFF-3.2 library for some problematic reactions

    The quality of the capture cross sections in JEFF-3.2 for a selection of nuclides has been assessed in comparison to other evaluated nuclear data libraries (ENDF/B-VII.1, JENDL-4.0, TENDL-2014 and IRDFF v1.05). The incident neutron capture reactions of th ...

    02 April 2016

  5. Radionuclide metrology laboratories

    Many issues related to nuclear safety and security involve calculations using accurate nuclear data. Measurements of neutron-induced reactions and cross-section standards, and absolute measurements of radiation i.e. radionuclide metrology, have been key a ...

    07 May 2014

  6. Linear electron accelerator facility

    GELINA Among the pulsed white spectrum neutron sources available in the world, the linear electron accelerator facility at IRMM (Gelina) is the one with the best time resolution. Gelina combines four specially designed and distinct units: a high-power pul ...

    07 May 2014

  7. Van de Graaff accelerator

    Van de Graaff The high intensity quasi mono-energetic neutron source at IRMM is driven by a vertical 7 MV Van de Graaff accelerator producing either continuous or pulsed ion beams. The installation has two pulsing systems. One is a fast beam pulsing gener ...

    07 May 2014

  8. HADES underground laboratory

    HADES IRMM operates a laboratory for ultra-sensitive radioactivity measurements inside the 225 m deep underground laboratory HADES, which is operated by EURIDICE (www.euridice.be) and located at the premises of the Belgian Nuclear Research Centre (www.sck ...

    12 June 2014

  9. Fragment-mass, kinetic energy, and angular distributions for 234U(,) at incident neutron energies from n = 0.2 MeV to 5.0 MeV

    This work investigates the neutron-induced fission of 234U and the fission-fragment properties for neutron energies between n = 0.2 MeV and 5.0 MeV with a special highlight on the prominent vibrational resonance at n = 0.77 MeV. Angular-, energy- and mass ...

    10 March 2016

  10. JRC researchers improve the methodology for the analysis of cross section measurements at a cold neutron beam

    16 Nov 2015 In close collaboration with international nuclear research organisations, scientists from the JRC described a method to improve the analysis of cross section measurements at a cold neutron beam. This work is part of the JRC contribution to imp ...

    16 November 2015

  11. Measurement of the 477.6-keV γ-ray production cross section following inelastic neutron scattering by 7Li

    The γ-ray production cross section for the 477.6-keV 1/2− → 3/2−g.s. transition in 7Li following inelastic neutron scattering has been measured from the reaction threshold up to 18 MeV. This cross section is interesting as a possible standard for other γ- ...

    25 March 2016

  12. First results from the new double velocity-double energy spectrometer VERDI

    The VERDI spectrometer (VElocity foR Direct mass Identification) is a two arm time-of-flight spectrometer built at the European Commission Joint Research Centre IRMM. It determines fragment masses and kinetic energy distributions produced in nuclear fissi ...

    04 March 2016

  13. Calibration with MCNP of NaI detector for the determination of natural radioactivity levels in the field

    In view of assessing natural radioactivity with on-site quantitative gamma spectrometry, efficiency calibration of NaI(Tl) detectors is investigated. A calibration based on Monte Carlo simulation of detector response is proposed, to render reliable quanti ...

    12 March 2016

  14. Study on the total excitation energy of accelerated fragments

    15 Oct 2015 The partition of the total excitation energy of fission fragments at scission is a crucial quantity for the determination of e.g. prompt emission of neutrons. Scientists from the JRC  in close collaboration with the University of Bucharest and ...

    15 October 2015

  15. Characterization of special nuclear material by neutron resonance spectroscopy

    Neutrons can be used as a tool to study materials and objects. Cross sections of neutron induced reactions show characteristic resonance structures which can be used as fingerprints to determine the elemental and isotopic composition of materials and obje ...

    27 January 2016

  16. Technique of neutron resonance transmission analysis for active neutron NDA

    Neutron Resonance Transmission Analysis (NRTA) is a Non-Destructive Analysis (NDA) technique that relies on the use of resonance structures in neutron induced reaction cross sections. An active NDA system based on NRTA is under development to identify and ...

    23 January 2016

  17. JAEA − JRC collaboration on the development of active neutron NDA techniques

    The Japan Atomic Energy Agency in collaboration with the Joint Research Centre of the European Commission started a program titled “Development of active neutron NDA techniques”. The program aims at developing an innovative non-destructive analysis (NDA) ...

    23 January 2016

  18. Prompt fission neutron spectra of actinides

    The energy spectrum of prompt neutrons emitted in ssion (PFNS) plays a very important role in nuclear science and technology. A Coordinated Research Project (CRP) "Evaluation of Prompt Fission Neutron Spectra of Actinides" was established by the ...

    23 January 2016

  19. Neutron Resonance Densitometry workshop

    04 Mar 2015 to 05 Mar 2015 The JRC and the Japanese Atomic Energy Agency (JAEA- Integrated Support Centre for Nuclear Nonproliferation and Nuclear Security (ISCN) and Nuclear Science and Engineering Centre (NSEC)) are pleased to announce a workshop on tec ...

    30 January 2015

  20. Stochastic image reconstruction for a dual-particle imaging system

    Stochastic image reconstruction has been applied to a dual-particle imaging system used for nuclear safeguards applications. The dual-particle imager (DPI) is a combined Compton-scatter and neutron-scatter camera capable of producing separate neutron and ...

    14 January 2016

  21. The 3rd Neutron Resonance Analysis School

    15 Dec 2014 to 19 Dec 2014 The Third Neutron Resonance Analysis School will be hosted at the JRC-IRMM in Geel, Belgium. Previous schools took place in 2008 and 2011. The school is organised within the FP7 project CHANDA (Solving Challenges in Nuclear Data ...

    08 December 2014

  22. From gamma emissions to (n,xn) cross sections of interest: the role of GAINS and GRAPhEME in nuclear reaction modeling

    During the last 10 years, in the general context of nuclear energy applications and future reactors development, our collaboration has performed measurements of (n,xnγ) cross sections to study (n,xn) reactions. Large sets of new and accurate experimental ...

    24 December 2015

  23. Future research program on prompt gamma-ray emission in nuclear fission

    In recent years the measurement of prompt fission gamma-ray spectra (PFGS) has gained renewed interest, after about forty years since the first comprehensive studies of the reactions 235U(nth,f), 239Pu(nth,f) and 252Cf(sf). The renaissance was initiated b ...

    06 January 2016

  24. First use of single-crystal diamonds as fission-fragment detector

    Single-crystal chemical vapor-deposited diamond (sCVD) was investigated for its ability to act as fission-fragment detector. In particular we investigated timing and energy resolution for application in a simultaneous time-of-flight and energy measurement ...

    23 December 2015

  25. Neutron-induced fission cross section of 242Pu from 0.3 MeV to 3 MeV

    The majority of the next generation of nuclear power plants (GEN-IV) will work in the fast neutron energy region, as opposed to present day thermal reactors. This leads to new and more accurate nuclear data needs for some minor actinides and structural ma ...

    23 December 2015