1. Plans for Validation and General Observations Mohamed Sawan Fusion Technology Institute The University of Wisconsin-Madison 3 rd RCM on FENDL-3 6-9 December 2011 IAEA, Vienna

2. Observations on General Purpose FENDL-3.0 Library The library is complete with 180 materials that include all missing materials and additional materials requested by users and identified at 2 nd RCM (up from 71 materials in FENDL-2.1) All isotopic data as agreed on at 1 st RCM All high energy data are there except for H3, He3, and He4 that were identified at the 2 nd RCM with no high energy data available Mn55 and Th232 have data only to 60 MeV vs. 150 or 200 MeV for other materials M. Sawan 3rd RCM on FENDL-3, 6-9 December 2011, IAEA, Vienna 2

3. Observations on General Purpose FENDL-3.0 Library No ACE formatted processed library is available to perform validation We plan to perform benchmark analysis using the processed FENDL-3.0 library Such calculations are important to uncover possible processing issues as was revealed by calculations for the FENDL-3.0 starter library Calculations will be performed for both the ITER calculational benchmark and mock-ups used in integral 14 MeV experiments (FNG, FNS) M. Sawan 3rd RCM on FENDL-3, 6-9 December 2011, IAEA, Vienna 3

4. FNG Experiments Analyzed M. Sawan 3rd RCM on FENDL-3, 6-9 December 2011, IAEA, Vienna 4 Tungsten Bulk shielding Streaming HCPB breeder

5. FENDL-3/SLIB2 Calculations for FNG Bulk Shield Experiment M. Sawan 3rd RCM on FENDL-3, 6-9 December 2011, IAEA, Vienna 5  Small difference compared to FENDL-2.1  Bulk shield mock-up thickness is much smaller than magnet shielding in ITER

6. M. Sawan 6 ITER Calculational Benchmark  To quantify impact of data changes, MCNP calculations for a 1-D ITER calculational benchmark was utilized during FENDL development process 3rd RCM on FENDL-3, 6-9 December 2011, IAEA, Vienna

7. M. Sawan 7 ITER Calculational Benchmark  FENDL-2.1 is the reference library for ITER  Results for flux, heating, dpa, and gas production will be compared to the results of FENDL-2.1  Results will provide guidance to ITER regarding the need of changing the reference library to FENDL-3.0 or just adding a correction/safety factor to the the current results 3rd RCM on FENDL-3, 6-9 December 2011, IAEA, Vienna

8. M. Sawan 3rd RCM on FENDL-3, 6-9 December 2011, IAEA, Vienna 8 Peak Neutron and Gamma Flux Results with FENDL-3/SLIB2a Neutron and gamma fluxes at VV and magnet that are heavily shielded by water-cooled SS are higher by 1-3% than predicted by FENDL-2.1 Calculations will be performed using the latest processed FENDL-3.0 library to assess possible impact on ITER calculations

9. M. Sawan 9 Neutron Spectrum at OB Magnet with FENDL-3/SLIB2a Using FENDL-3/SLIB2a corrected the anomaly in low energy spectrum caused by wrong secondary energy spectra Energy spectra from FENDL-3/SLIB2a and FENDL-2.1 are close with differences up to ~10% at E>2 MeV 3rd RCM on FENDL-3, 6-9 December 2011, IAEA, Vienna

10. M. Sawan 3rd RCM on FENDL-3, 6-9 December 2011, IAEA, Vienna 10 Notable change in FENDL-3 is switch for H-1 from JENDL-3.3 to ENDF/B-VII.0 Lower (n,) cross sections at high energy could be reason for higher neutron flux (particularly at high energy) in regions heavily shielded by water-cooled SS H-1 Data in FENDL-3 vs. FENDL-2.1

11. M. Sawan 3rd RCM on FENDL-3, 6-9 December 2011, IAEA, Vienna 11 Peak Nuclear Heating Results with FENDL-3/SLIB2a Using the corrected FENDL-3 starter library (FENDL-3/SLIB2a) removed the large overestimate at deep penetration locations Nuclear heating at magnet is higher by ~2% than predicted by FENDL-2.1 Differences with latest version are to be determined

12. M. Sawan 3rd RCM on FENDL-3, 6-9 December 2011, IAEA, Vienna 12 Peak IB Magnet Nuclear Parameters with FENDL-3/SLIB2a Nuclear parameters at magnet are higher by ~1.5-3.5% than predicted by FENDL-2.1 Largest differences are in fast neutron fluence and dpa that are determined by high energy flux Effects will be assessed with recent version

13. M. Sawan 3rd RCM on FENDL-3, 6-9 December 2011, IAEA, Vienna 13 Remaining Issues  Release of processed ACE formatted library  Release of processed multi-group library (MATXS format)  Existing benchmarks (calculational and experimental) use materials included in FENDL-2.1  We need new set of benchmarks to validate data for the new materials added