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Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom Review of IEAF-2001 Cross Section Data Libraries for IFMIF Activation.

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Presentation on theme: "Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom Review of IEAF-2001 Cross Section Data Libraries for IFMIF Activation."— Presentation transcript:

1 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom Review of IEAF-2001 Cross Section Data Libraries for IFMIF Activation and Transmutation Analyses U. Fischer a), A. Konobeyev a), Yu. Korovin b), D. Leichtle a), U. v. Möllendorff a), P. Pereslavtsev a), I. Schmuck a), S. P. Simakov a), P. P. H. Wilson c) a) Association FZK-Euratom, Forschungszentrum Karlsruhe b) Institute for Nuclear Power Engineering (INPE), Obninsk, Russia c) University of Wisconsin, Madison, USA IAEA TC Meeting, Karlsruhe, October 4-6, 2005

2 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom U. Fischer, Review IEAF-2001 Data Libraries IAEA TC Meeting, Karlsruhe, October 4-6, 2005 History –Collaboration of Forschungszentrum Karlsruhe (FZK) and Institute for Nuclear Power Engineering (INPE), Obninsk –1997-1999: Activation data files for Z=6-84 target nuclides based on EAF-97 MeV data for E<20 MeV –2000: Data file completion with Z<6 nuclides; addition of MF=2 resonance parameter skeleton –2001: IEAF-2001 based on EAF-99 data for E<20 MeV, processing & first applications tests. –2002: Validation analyses, IFMIF applications –2003: IEAF-2001 group data library for FISPACT IEAF-2001 Objective Development of nuclear data base required for transmutation activation analyses of IFMIF D-Li neutron source (E n > 20 MeV) and other intermediate energy applications (E n <150 MeV)

3 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom U. Fischer, Review IEAF-2001 Data Libraries IAEA TC Meeting, Karlsruhe, October 4-6, 2005 Pre-equilibrium nucleon emission –Modified geometry dependent hybrid (GDH) model –Pre-compound cluster (d, t, 3 He,  ) and  -ray emission –Code ALICE/ASH (INPE Obninsk) New approach for light mass nuclei (Z  6) based on diffraction theory –A. Konobeyev et al., Nucl. Sci. Eng. 139, 1-23 (2001) Adoption of EAF-99 data below 20 MeV –J.-Ch. Sublet, J. Kopecky, R. Forrest, European Activation File EAF-99, Report UKAEA FUS 408, 1998 Evaluation Methodology Yu. Korovin, A. Yu. Konobeyev, P.E. Pereslavtsev et al, Journ. Nucl. Sci. Techn., Suppl. 2, p. 68-71 (August 2002)

4 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom U. Fischer, Review IEAF-2001 Data Libraries IAEA TC Meeting, Karlsruhe, October 4-6, 2005 Neutron energy range: 10 -5 eV  E n  150 MeV 679 target nuclides: Z=1 (hydrogen) to 84 (polonium) –  134.000 reaction cross-sections Standard ENDF-6 data format –MT=5 (n, anything) data representation –Lumped MT=5 excitation function stored in MF=3 section –Reaction product yield vectors in MF=6 section (LAW=0) –MF=2 resonance parameter skeleton to enable processing with NJOY ENDF Data File Features

5 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom U. Fischer, Review IEAF-2001 Data Libraries IAEA TC Meeting, Karlsruhe, October 4-6, 2005 GENDF group data library  G-IEAF-2001/XS-256 –Generated with NJOY/GROUPR based on version 99.0 –Modifications required GENDF data format (minor changes; ZAT) NJOY/GROUPR: –Minor changes for processing of MT=5, MF=6 (LAW=0) –Major changes for automated processing of all sub-sections 256 energy group structure –175 VITAMIN-J energy groups below 20 MeV –1 MeV energy bins for 20  E n  50 MeV, 2 MeV bins above Flat weighting spectrum Data File Processing

6 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom U. Fischer, Review IEAF-2001 Data Libraries IAEA TC Meeting, Karlsruhe, October 4-6, 2005 For use with ALARA activation code –Analytical and Laplacian Adaptive Radioactivity Analysis –Next generation activation code developed at University of Wisconsin-Madison (P. Wilson) –Capable of handling an arbitrary number of reaction channels (282 needed for IEAF-2001 !) –Reactions defined entirely by the library (no fixed reaction tables) Cannot be used by standard activation codes –FISPACT (UKAEA Culham), ANITA (ENEA), ….  Use of fixed reaction tables Group Data Library G-IEAF-2001/XS-256

7 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom U. Fischer, Review IEAF-2001 Data Libraries IAEA TC Meeting, Karlsruhe, October 4-6, 2005 Required for standard activation codes: –Convert MT=5 (MF3/MF6) data to nuclide production cross-section data (MF3) Non-standard MT numbers (181) ENEA Bologna, IEAF-2001 for ANITA code –Assume MT=5 as pseudo fission reaction FZK, Karlsruhe, for FISPACT code G-IEAF-2001/PY-256 –MT=5/MF=3: pseudo fission product cross-section No other cross-section MT=5/MF=6: pseudo fission product yields Calculated on the basis of G-IEAF-2001/XS-256 data Stored on MF=8 as independent fission product yield data (MT=454) Group Data Library G-IEAF-2001/PY-256

8 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom U. Fischer, Review IEAF-2001 Data Libraries IAEA TC Meeting, Karlsruhe, October 4-6, 2005 Group Data Library G-IEAF-2001/PY-256 Major FISPACT modifications

9 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom U. Fischer, Review IEAF-2001 Data Libraries IAEA TC Meeting, Karlsruhe, October 4-6, 2005 (2)Integral activation experiment in white neutron field produced by 40 MeV deuteron beam on thick Li-target ("IFMIF-like" neutron spectrum) SS-316 steel, F82H steel, V and V-4Ti-4Cr alloy samples U. v. Möllendorff et al, Report FZKA 6764, 2002  ALARA/G-IEAF-2001/XS-256 vs. experiment  Testing/qualification of data Testing and Validation (1) ALARA-calculations using G-IEAF-2001/XS-256 data (1)Fusion activation benchmark: Irradiation of reduced activation steel Eurofer in first wall of Fusion Demo reactor  ALARA/G-IEAF-2001/XS-256 vs. FISPACT/EAF-99 (E  20 MeV: IEAF-2001 = EAF-99)  Validation of procedure

10 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom U. Fischer, Review IEAF-2001 Data Libraries IAEA TC Meeting, Karlsruhe, October 4-6, 2005 ALARA/IEAF-2001 vs. FISPACT/EAF-99 FISPACT/EAF-99: dashed with symbols ALARA/IEAF-2001: straight lines

11 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom U. Fischer, Review IEAF-2001 Data Libraries IAEA TC Meeting, Karlsruhe, October 4-6, 2005 ALARA/IEAF-2001 vs. FISPACT/EAF-99 FISPACT/EAF-99: dashed with symbols ALARA/IEAF-2001: straight lines Eurofer activation in Demo first wall

12 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom U. Fischer, Review IEAF-2001 Data Libraries IAEA TC Meeting, Karlsruhe, October 4-6, 2005 ALARA/IEAF-2001 vs. Experiment SS-316 IFMIF activation experiment

13 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom U. Fischer, Review IEAF-2001 Data Libraries IAEA TC Meeting, Karlsruhe, October 4-6, 2005 ALARA/IEAF-2001 vs. Experiment

14 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom U. Fischer, Review IEAF-2001 Data Libraries IAEA TC Meeting, Karlsruhe, October 4-6, 2005 (1)FISPACT/G-IEAF-2001/PY-256 vs. FISPACT/EAF-99 using 175 group data  G-IEAF-2001 data cut-off at 20 MeV (E  20 MeV: IEAF- 2001 = EAF-99)  Different computational procedures and group data, identical underlying neutron cross-sections.  Agreement pre-requisite for application > 20 MeV (2)FISPACT/G-IEAF-2001/PY-256 vs. ALARA/G-IEAF-2001/XS- 256 benchmark calculations  Validation of new procedure for whole energy range  Use of v. Möllendorff et al. IFMIF activation experiment on SS-316 steel as benchmark FISPACT-calculations using G-IEAF-2001/FP-256 data Testing and Validation (2)

15 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom U. Fischer, Review IEAF-2001 Data Libraries IAEA TC Meeting, Karlsruhe, October 4-6, 2005 SS-316 IFMIF activation benchmark FISPACT/G-IEAF-2001/PY vs. ALARA/IEAF-2001/XS

16 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom U. Fischer, Review IEAF-2001 Data Libraries IAEA TC Meeting, Karlsruhe, October 4-6, 2005 SS-316 IFMIF activation benchmark FISPACT/G-IEAF-2001/PY vs. ALARA/IEAF-2001/XS

17 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom U. Fischer, Review IEAF-2001 Data Libraries IAEA TC Meeting, Karlsruhe, October 4-6, 2005 IEAF-2001: complete cross-section data library for activation and transmutation analyses (E n  150 MeV, 1  Z  84) Two different working libraries, G-IEAF-2001/XS-256 & G- IEAF-2001/PY for application calculations with different approaches for inventory calculations (ALARA-, FISPACT-code) Different approaches validated through series of benchmark calculations Testing and qualification of IEAF- data performed for SS-316, V/V-alloy, Eurofer, W samples in IFMIF activation experiments In routine use for applications to IFMIF neutron source Available through NEA Data Bank & RSICC (ENDF data file & G-IEAF-2001/256-XS) Summary

18 Forschungszentrum Karlsruhe in der Helmholtz-Gemeinschaft Association FZK-Euratom U. Fischer, Review IEAF-2001 Data Libraries IAEA TC Meeting, Karlsruhe, October 4-6, 2005 Update, improvements & extension of IEAF-2001 ? –Benchmark results: need for improvements/revisions –E n  20 MeV: Improved data (EAF-2003/JEFF-3.0 A) –Improved model codes / methodologies (e. g. GNASH, TALYS) –New experimental cross-section data –Extension to higher energies E n > 150 MeV ? (  spallation) Strategy for updating: –Activation data library for neutron energies up to 1 GeV to include spallation transmutation productions –E n > 150 MeV: Intranuclear cascade models –New evaluation in energy range 20  E n  150 MeV (GNASH) –E n  20 MeV: Use of JEFF-3.0 Outlook


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