Opportunities for Collaboration: WG1 High Power Targets

1. Opportunities for Collaboration: WG1 High Power Targets C. Densham/P. Hurh

2. Reminder of what was achieved at PASI 2012 Motivation! • The Matrix • Challenges versus target facilities

3. Reminder of what was achieved at PASI 2012

4. Matrix: the Sequel • Capabilities of facilities/groups represented • Will be expanded to include relevant groups not represented • Not a judge of quality, but of capability • Used to help guide those in need to those in know

5. It’s all clear now…

6. Summary of Capabilities

7. Identified Possible PASI related work • Continue with RaDIATE • Finish Stage 1 • Post-doc in place • General testing plan in place • Start Stage 2 • Determine and start PIE of previously irradiated mat’ls • Prepare irradiated materials for testing • Identify new irradiations as necessary • Continue carbon material studies at BNL and elsewhere • Continue to contribute to tungsten studies for ISIS/ESS • Continue with Be single pulse test for HiRadMat • Design/Analysis of test • Arrangements with CERN • Start production of needed samples and test rig

8. Identified Possible PASI related work • PASI-UK • General Tools • Figure of Merit Development • Various ‘generic’ tungsten/tantalum material studies motivated by ISIS challenges • water erosion of Ta • Ta cladding residual strain investigation • ISIS tantalum target autopsy at SCK-CEN • W fatigue studies • Material corrosion in various environments • Other Work • Novel target monitoring instrumentation systems • Neutron capture and delivery • Remote handling

9. Identified Possible PASI related work • PASI-UK • ISIS TS-1 Upgrade • Complete ‘feasibility’ stage • Continue design and analysis to: • gain a factor of 2 in performance • minimize risk • survive up to 500 kW proton beam on target/windows • Continue with target manufacture technology transfer (from sole vendor to in-house) • Irradiated materials may be available (Ta, W, Be)

10. Identified Possible PASI related work • PASI-UK • Fluidized powder targets • HiRadMat test 2 • Generic powder conveying study • Heat transfer of powder • Effect of magnetic field • More on W testing (benefits Mu2e and ISIS) • Little Wire Test • cycles to failure • emissivity • oxidation • Would help to have a larger power supply to explore lower temperature regimes • irradiated materials or in-situ with lower energy ion beam for this test • Beryllium?

11. Identified Possible PASI related work • Nu Superbeams • LBNE: • LBNE 700 kW target prototyping and manufacture • LBNE 2.3 MW target scoping calculations • LBNE beam windows • LBNE Hadron Monitor design and manufacture • In general: • Target station conceptual design • Beam window conceptual design • Low-Z target design w/ integration to horn • Horn lifetime • Instrumentation

12. “New” Opportunities • Project X Experimental Facilities • Integrated Target Facility (Energy Station + Particle Physics): • Develop conceptual target designs that serve both particle physics and nuclear energy missions – Integrated Target Station (ITS or The IT Station?) • Develop an end-to-end ITS testing program plan as a user facility • Define/refine the technical requirements to support the proposed testing program plan • Investigate the beam on/off issues for both short and long time scales to determine which transients have the potential to be problematic due to thermal and radiation damage effects • Develop desired damage rate/sample volume specifications • Neutronics of the Project X ITS concept needs to be refined to evaluate beam options (e.g., dual or rastered beam) to optimize flux and flux gradients and test volumes

13. “New” Opportunities • Project X Experimental Facilities • Kaon Facility: • Some ongoing work at BNL on facility conceptual design • Conceptual design of target system for PX Kaon fore-runner, ORKA • Muon Facility: • Scoping calculations for a next generation Mu2e target at 1 MW to determine promising target technology options

14. Identified Possible PASI related work • Muon Collider/Neutrino Factory/NuSTORM • MuCollider/NuFact: Mercury jet and other considerations have been addressed at a conceptual level, but solenoid also has challenges • NuSTORM: Utilizes proven technologies, but SC quads will receive high dose just DS of the target/horn • Radiation damage in HTS: • requires cryogenic irradiation and testing cold! • Work being done at BNL for FRIB, also applicable here? • Target Facility Conceptual Design and component system design (NuSTORM: near-term)

15. And even more… • High Heat Flux Cooling • New ways to achieve extremely high heat transfer coefficients

16. Requirements of these activities

17. WG1 12 Month Deliverables • RaDIATE (FNAL, PNNL, STFC, Oxford, BNL) • Recruit Post-Doc • Continue graphite neutron irradiation studies at BNL (BLIP) • Begin un-irradiated material characterization • Plan any needed irradiations • Coordinate with other programs (FRIB/MSU-MatX) • Add additional collaborators (CERN, FRIB/MSU) • Single pulse target tests (FNAL/RAL/CERN) • Design and approve test for HiRadMat • KavinAmmigan starting work next week with RAL • Gather needed equipment

18. WG1 12 Month Deliverables • Other cross-cutting collaboration (many facilities) to begin serious discussion on: • Beam Windows • High Heat Flux Cooling • Erosion & Oxidation (initially Ta coated W) • Absorber • Share lessons learned and operational experience (e.g. visit to FNAL from FRIB and CERN next week) • Participate in conceptual design and review activities of potential facilities • New Areas to Explore • TRITON – triple beam facility for radiation damage research for Nuclear Energy (need to include us as potential users!)

19. PASI who? • Some confusion on how PASI fits into the global picture especially for the high power target community • Do not want to risk alienating our helpful and expert colleagues around the world • Need to develop a PASI “mission-statement” that carefully fosters building upon the excellent HPT community that already exists

20. Many Thanks • Thanks to the organizing committee • Thanks to WG-1 participants • Thanks to Chris Densham, co-convener