1. M. Ross, N. Walker, A. Yamamoto ILC Cost Review, (updated for TB) 2013-02-07and 2013-02-26 Cost Drivers  Future R & D 2013-02-07ILC Cost Review (M. Ross, SLAC) 1 Technical highlights of this Review and comments on future work

2. Outline Five – year R & D Program for TDR (2007- 2012) –Risk Reduction and Technology Development Selection of Cost-Drivers based on Value / Labor and Uncertainty –5 of each selected Suggested Future R & D – Cost / Cost-risk –(including potential for progress) Conclusion 2013-02-07ILC Cost Review (M. Ross, SLAC) 2

3. Five – year R & D Program for TDR (2007- 2012) –Risk Reduction and Technology Development Selection of Cost-Drivers based on Value / Labor and Uncertainty –5 of each selected Suggested Future R & D – Cost / Cost-risk –(including potential for progress) Conclusion Outline 2013-02-07ILC Cost Review (M. Ross, SLAC) 3

4. Technical Risk R&D Topics: 1.Further R&D for cavity auxiliary design integration: tuner, coupler, He-vessel, and magnetic shield 2.Further R&D and demonstration for mitigating the CM field gradient degradation during CM assembly 3.Further R&D to improve the field gradient in the first pass surface treatment to help get the best cost- effective cavity production, 4.With longer term scope, extend the high-gradient cavity R&D to save LC project cost and support extending the energy in the best cost-effective way. 2013-02-07ILC Cost Review (M. Ross, SLAC) 4

5. Outline Five – year R & D Program for TDR (2007- 2012) –Risk Reduction and Technology Development Selection of Cost-Drivers based on Value / Labor and Uncertainty –5 of each selected Suggested Future R & D – Cost / Cost-risk –(including potential for progress) Conclusion 2013-02-07ILC Cost Review (M. Ross, SLAC) 5

6. Cost Drivers: Value/Labor and Uncertainty Value / Labor: 1. Cavities 2. Cavity auxiliaries 3. Cryomodule assembly 4. CFS Civil 5. CFS Utilities Uncertainty: 1. CM test infrastructure 2. Tuner / He vessel / Coupler 3. SC Material 4. CFS Underground construction 5. CFS Utilities 2013-02-07 ILC Cost Review (M. Ross, SLAC) 6

7. Outline Five – year R & D Program for TDR (2007- 2012) –Risk Reduction and Technology Development Selection of Cost-Drivers based on Value / Labor and Uncertainty –10 each selected Suggested Future R & D – Cost / Cost-risk –(including potential for progress) Conclusion 2013-02-07ILC Cost Review (M. Ross, SLAC) 7

8. Cost Drivers: Value/Labor and Uncertainty Value / Labor: 1. Cavities 2. Cavity auxiliaries 3. Cryomodule assembly 4. CFS Civil 5. CFS Utilities Uncertainty: 1. Cryomodule testing 2. Tuner / He vessel / Coupler 3. SC Material 4. CFS Underground construction 5. CFS Utilities 2013-02-07 ILC Cost Review (M. Ross, SLAC) 8

9. Cavity Production and Auxiliaries Electron Beam Welding automation: –Reducing ‘touch labor’ and pump / cool cycle times –Practical industrial experience through EXFEL production –Lab – based process studies KEK  Integrating Cavity Auxiliaries: –Vessel – Tuner – Magnetic shield not fully integrated and tested for TDR cost –Large spread in cost basis comparison 2013-02-07ILC Cost Review (M. Ross, SLAC) 9 1 2

10. Cavity Fabrication at KEK (1) KEK has invested in a state-of-the-art cavity production facility –Centerpiece: modern Electron Beam Welder –(commissioned mid-2011) Studies include development of –Weld process (pumping, beam parameters, cooling and venting) –Automated tooling and instrumentation –Full production cycle Lab takes risk in a partnership with industry –(Similar to J-Parc SC magnet production) A. Yamamoto 11/13/2012 10

11. Beam 8 July 2011 11 Cavity Fabrication at KEK (2) A. Yamamoto 11/13/2012

12. Load-Lock palette EBW Used for all other welds: –Iris welds (8 per cavity) –stiffening rings (16 per cavity) –long and end groups welds (many!) Load/unload time determined by welding chamber –9 welds @ 1.5’ per weld  15.5’ Estimated total of ~2 hours process time per cavity –EBW required: 9,000×2 / 21,420  1 (71%) –1 operators per shift

13. Cavity Associated Components (1) Tuner, Helium Vessel, Magnet shield and Coupler –Central to ‘plug-compatibility’ –Costing cumbersome due to lack of consistent definition –Technical R & D ongoing (Coupler for EXFEL and Tuner long term performance) Subject to specific R & D 2013-02-07ILC Cost Review (M. Ross, SLAC) 13 2 2

14. Cavity Associated Components (2) A. Yamamoto: 2013.1.30 14 Frequency (“blade”) tuner High-power coaxial input coupler Magnetic Shield SCRF Cost Overview

15. Cryomodule Assembly Analytical approach not well suited to broadly – based study of alternates Further major cost reductions probably call for substantial changes in the EXFEL assembly processes, –or changes in the design, or technology breakthroughs –out of the scope of BNG study EXFEL process just getting started – early 2013 –Expected Completion 2015 –Effectiveness of each step not known for industrialized assembly process 2013-02-07ILC Cost Review (M. Ross, SLAC) 15 3

16. Cryomodule Testing Cryomodule testing (outside of DESY) will start in 2013 at Fermilab and KEK –New infrastructure, including beam tests, and closer adherence to ILC parameters and integration scheme  Central theme of ongoing R & D Technology transfer (and EXFEL experience) will provide basis – key for usage model ILC Project Usage model definition awaits further project planning 2013-02-07ILC Cost Review (M. Ross, SLAC) 16 1

17. Niobium All SRF niobium comes from a single mine –Araxa, Brazil open pit mine owned by CBMM –Commodity manipulation leads to price / schedule uncertainty –(TDR cost estimate uses exchange rate for Nb procurement) Ore processors recommend development / qualification of a second source for SRF application –R & D to refine sheet specifications will open competition 2013-02-07ILC Cost Review (M. Ross, SLAC) 17 3

18. CFS – Asian (Japan) Site Development Site studies funded through Supplementary budget (2011 – 2013) –Two sites in Japan Geology, Survey, Consultant reports in conjunction with local government  –Beginning of the site preparation stage –Better understanding of specific geology – including optimization of site alignment 2013-02-07ILC Cost Review (M. Ross, SLAC) 18 4,5

19. Tohoku and Kyushu Site Development Consultant reports: 2012-10-22LCWS12 Machine Program (M. Ross, SLAC) 19 Tohoku ‘Vision’ July 2012 Kyushu ‘Science Frontier’ March 2012 http://tohoku-ilc.jp/data/report/2012/121002_vision_research_report.pdf http://www.pref.saga.lg.jp/web/var/rev0/0107/7246/honpen.pdf Second, much more comprehensive, set of reports due 03.2013

20. 2013-02-07 ILC Cost Review (M. Ross, SLAC) 20

21. 2013-02-07 ILC Cost Review (M. Ross, SLAC) 21

22. Outline Five – year R & D Program for TDR (2007- 2012) –Risk Reduction and Technology Development Selection of Cost-Drivers based on Value / Labor and Uncertainty –5 of each selected Suggested Future R & D – Cost / Cost-risk –(including potential for progress) Conclusion 2013-02-07ILC Cost Review (M. Ross, SLAC) 22

23. Conclusion – Future R & D 2013-02-07 ILC Cost Review (M. Ross, SLAC) 23 Value / Labor: 1. Cavities 2. Cavity auxiliaries 3. Cryomodule assembly 4. CFS Civil 5. CFS Utilities Uncertainty: 1. CM test infrastructure 2. Tuner / He vessel / Coupler 3. SC Material 4. CFS Underground construction 5. CFS Utilities Related Studies underway or (EXFEL production) getting started Milestones: CM technology transfer to KEK and Fermilab EXFEL full production rate Consultant siting studies Topics not well covered: Cavity auxiliaries SC Material