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Introductie

NRG (een ECN/KEMA bedrijf) is een sterke partij in Europese 'nuclear data' projecten. Wij hebben de mogelijkheid data te selecteren, compileren, evalueren en te bewerken voor de belangrijkste nucleaire codes, zoals MCNP4A, ANISN, DORT, ONEDANT, TWODANT en het SCALE code systeem. Wij bieden ook de productie van data aan als een dienst aan u, zowel voor continuous-energy als voor multigroup data.

Ons standaard Producten zijn de EJ2-MCNPlib, EIJ2-XMAS, ECNAF95, ECNORILIB, ECNMEF, DOSCROS84 en ECNDOSLIB bibliotheken, maar speciale bibliotheken (zoals voor 'exotische' isotopen of voor speciale temperaturen) kunnen ook op verzoek gegenereerd worden.

EJ2-MCNPlib

The EJ2-MCNPlib library consists of several modules, which enable the user to perform state-of-the-art reactivity-, shielding and criticality calculations. The following modules are currently available:
  • The T = 293.16 K JEF-2.2 library.
    This base module of the library contains neutron scattering data for all 313 nuclides from the JEF-2.2 evaluation.
  • The T = 600 K and T = 900 K JEF-2.2 libraries.
    These modules contain neutron scattering data for those nuclides from the JEF-2.2 evaluation which are relevant for fission reactor calculations.
  • The T = 293.16 K EFF-2.4 library.
    This module contains neutron scattering data for the 78 nuclides from the EFF-2.4 evaluation.
    EFF-2.4 contains high-quality neutron scattering data for structural materials and other fusion-relevant materials.
  • The T = 293.16 K EFF-3.0 library.
    This module contains neutron scattering data for nuclides available on the EFF-3.0 evaluation (e.g. latest data for 56Fe and V).
  • The JEF-2.2 based thermal data library.
    This module contains thermal neutron scattering data for nuclides from the JEF-2.2 thermal evaluation.

EIJ2-XMAS

The EIJ2-XMAS library contains group cross-section data in the 172-group XMAS structure.
Data are available for a range of temperatures, from 293.6 up to 2500 K, and are given for several values of the background cross section. The EIJ2-XMAS library contains over 300 nuclides from the JEF-2.2 evaluation and is intended for use in general-purpose reactivity-, criticality- and shielding calculations.

ECNAF95

The ECNAF95 library is a dedicated library for activation-, transmutation- and burnup calculations.
It is based on the well-known European EAF-4.1 evaluation (made at NRG/ECN) with extensions for actinides and can be used in combination with the inventory and burnup code FISPACT. Data in other formats can be delivered as well.

ECNORILIB

The ECNORILIB library contains data for use in activation and transmutation calculations with ORIGEN-S.
Data are based on the European JEF-2.2 and EAF-3.1 evaluations. ORIGEN-2 data files can be delivered upon request for all current reactor types.

ECNMEF

The ECNMEF library is a general-purpose medium-energy neutron data library based on medium-energy neutron evaluations (En > 20 MeV).
The library can be used in combination with the code MCNP4A.

DOSCROS84

The well-known NRG/ECN-made DOSCROS84 library contains data for use in dosimetry calculations with the code SAND.
Data are given in the 640-group SAND-II structure.
Additionally, the GAMLIB library contains gamma ray energies and emission probabilities (with uncertainties) for most of the dosimetry reactions.

ECNDOSLIB

The ECNDOSLIB library contains data for use in dosimetry calculations with MCNP4A.
Data are based on the IRDF-90.2 evaluation.

Quality assurance

Cross section data are the result of many processing steps, starting from raw experimental data and ending with data structured and formatted for use by a particular computer code. We have expert knowledge of all these steps, including the adaptation and validation of data processing codes. Our working procedures are in accordance with NQA-1 and ISO-9001.

Verification and validation

The quality of nuclear data is crucial when high-quality nuclear analyses are to be performed. Extensive attention was therefore given to the verification of the processed libraries. Several selected experiments were used for the validation of cross-section data in the libraries.

Main features

The libraries mentioned above are all characterised by the following:
  • High-quality nuclear data.
  • Extensive coverage of the periodic system.
  • Extensive verification.
  • User support.

Contactpersoon

Dr. Alfred Hogenbirk
NRG
Postbus 25
1755 ZG Petten

tel: +31 224 564399
fax: +31 224 564091
e-mail: hogenbirk@nrg.eu

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NRG, Postbus 25, NL-1755 ZG Petten, Nederland, Tel +31-224564950, Fax +31-224568912
Informatie: info@nrg.eu
Update 26 maart 2001