1. 1 BROOKHAVEN SCIENCE ASSOCIATES N. Simos Brookhaven National Lab May 1-2, Oxford U., UK High Power Target R&D Simulations

2. 2 BROOKHAVEN SCIENCE ASSOCIATES Exploring Eulerian-Lagrangian Formulation Capabilities of LS-DYNA Proton Beam - Hg Jet Interaction Experiment High velocity projectiles emanating from Hg target

3. 3 BROOKHAVEN SCIENCE ASSOCIATES

4. 4 Relevance to Hg Jet: Jet nozzle survivability

5. 5 BROOKHAVEN SCIENCE ASSOCIATES Hg Explosion Simulations

6. 6 BROOKHAVEN SCIENCE ASSOCIATES Hg explosions and Target Infrastructure

7. 7 BROOKHAVEN SCIENCE ASSOCIATES

8. 8 Superbeam Target Concept

9. 9 BROOKHAVEN SCIENCE ASSOCIATES Overview of R&D Realized to-date on Solid Targets Target Shock Studies Radiation damage Studies

10. 10 BROOKHAVEN SCIENCE ASSOCIATES Solid Targets

11. 11 BROOKHAVEN SCIENCE ASSOCIATES Target Shock Studies

12. 12 BROOKHAVEN SCIENCE ASSOCIATES Beam-induced shock on thin targets experiment prediction

13. 13 BROOKHAVEN SCIENCE ASSOCIATES Pulse Structure

14. 14 BROOKHAVEN SCIENCE ASSOCIATES Solid Target Shock Studies Graphite and Carbon composites super-alloys Materials “ appear ” more shock resilient than conventional estimates

15. 15 BROOKHAVEN SCIENCE ASSOCIATES

16. 16 BROOKHAVEN SCIENCE ASSOCIATES Thermal Conductivity 3-D CC (~ 0.2 dpa) conductivity reduces by a factor of 3.2 2-D CC (~0.2 dpa) measured under irradiated conditions (to be compared with company data) Graphite (~0.2 dpa) conductivity reduces by a factor of 6 W (1+ dpa)  reduced by factor of ~4 Ta (1+ dpa)  ~ 40% reduction Ti-6Al-4V (~ 1dpa)  ~ 10% reduction

17. 17 BROOKHAVEN SCIENCE ASSOCIATES Radiation Damage in Carbon-Carbon Composites

18. 18 BROOKHAVEN SCIENCE ASSOCIATES Radiation Damage in Carbon-Carbon Composites and Graphite 3-D carbon 2-D carbon graphite [fluence ~10^21 p/cm2]

19. 19 BROOKHAVEN SCIENCE ASSOCIATES “ annealing ” of super-Invar ONGOING 3rd irradiation phase: neutron exposure

20. 20 BROOKHAVEN SCIENCE ASSOCIATES Radiation Damage of Super Alloy “ Gum ” metal As observed in other studies (AlMg-alloy) 0.2 dpa was enough to remove cold-work microstructure Enhancement of properties are attributed to the “dislocation-free” plastic deformation mechanism Super ductility completely disappears with irradiation

21. 21 BROOKHAVEN SCIENCE ASSOCIATES Radiation Damage Studies – High-Z Materials Tantalum

22. 22 BROOKHAVEN SCIENCE ASSOCIATES Tantalum

23. 23 BROOKHAVEN SCIENCE ASSOCIATES Tungsten

24. 24 BROOKHAVEN SCIENCE ASSOCIATES Tungsten

25. 25 BROOKHAVEN SCIENCE ASSOCIATES NEXT STEP ? Focus on irradiation damage and thermal shock/fatigue of key components that could be the limiting factors in the lifetime of the overall experiments Appreciate the value of multi-physics based simulations for the engineering side of things (where actual limitations lie) and use them to push the envelope