1. Barry Barish JSPS - Sendai 12-Sept-11
Global Design Effort
ILC R&D and Technical Design
Energy stability over 3hrs with 4.5mA
~0.02% pk-pk
9 Feb 2011
Grooved Insert for
CesrTA Wiggler
Barry Barish
JSPS - Sendai
12-Sept-11
FLASH Stability Tests
12-Sept JSPS - Sendai
Global Design Effort

2. Outline Update on ILC accelerator R&D Plans and Scope of for the TDR
TDR Baseline
TDR Phase 2 plans
Scope and Contents of the TDR
Future beyond 2012
12-Sept JSPS - Sendai
Global Design Effort

3. R&D Progress global program focused on major test facilities
R&D Progress global program focused on major test facilities *** systems tests ***
12-Sept JSPS - Sendai
Global Design Effort

4. Major R&D Goals for Technical Design
SCRF
High Gradient R&D - globally coordinated program to demonstrate gradient by 2010 with 50%yield; improve yield to 90% by TDR (end 2012)
Manufacturing: plug compatible design; industrialization, etc.
Systems tests: FLASH; plus NML (FNAL), STF2 (KEK) post-TDR
Test Facilities
ATF2 - Fast Kicker tests and Final Focus design/performance EARTHQUAKE RECOVERY
CesrTA - Electron Cloud tests to establish damping ring parameters/design and electron cloud mitigation strategy
FLASH – Study performance using ILC-like beam and cryomodule
12-Sept JSPS - Sendai
Global Design Effort
Global Design Effort 4

5. SCRF Status/Progress high gradient cavities system tests industrialization
12-Sept JSPS - Sendai
Global Design Effort

6. The ILC SCRF Cavity Achieve high gradient (35MV/m); develop multiple
vendors; make cost effective, etc
Focus is on high gradient; production yields; cryogenic
losses; radiation; system performance
12-Sept JSPS - Sendai
Global Design Effort

7. Global Plan for ILC Gradient R&D
New baseline gradient:
Vertical acceptance: 35 MV/m average, allowing ±20% spread (28-42 MV/m)
Operational: 31.5 MV/m average, allowing ±20% spread (25-38 MV/m)
12-Sept JSPS - Sendai
Global Design Effort

8. Cavity Gradient Milestone Achieved
TDR
Goal
2010
Milestone
Toward TDR goal
Field emission; mechanical polishing
Other progress
12-Sept JSPS - Sendai
Global Design Effort

9. S1-Global: Systems Tests
19-May Pac Mtg - Taiwan
Global Design Effort

10. Test Facilities: FLASH SCRF accelerator tests
12-Sept JSPS - Sendai
Global Design Effort

11. 12-Sept JSPS - Sendai
Global Design Effort

12. Example Experimental Results
Beam Current (mA) 1 2 3 4 5
Gradient change over 400us (%) -3 -5 +3 +5
Gradient Tilts vs Beam Current (ACC7)
Intended working point
~2.5%
Characterisation of solution by scanning beam current
model benchmarking
Flat gradient solution achieved
4.5 mA beam
12-Sept JSPS - Sendai
Global Design Effort

13. FLASH: Stability
15 consecutive studies shifts (120hrs), and with no downtime
Time to restore 400us bunch-trains after beam-off studies: ~10mins
Energy stability with beam loading over periods of hours: ~0.02%
Individual cavity “tilts” equally stable
Energy stability over 3hrs with 4.5mA
~0.02% pk-pk
9 Feb 2011
12-Sept JSPS - Sendai
Global Design Effort

14. Test Facilities: Cesr-TA eCloud broad accelerator applications
12-Sept JSPS - Sendai
Global Design Effort

15. eCloud R&D Mitigating Electron Cloud
Simulations – electrodes; coating and/or grooving vacuum pipe
Demonstration at CESR critical tests
12-Sept JSPS - Sendai
Global Design Effort

16. Mitigation - Simulation Studies
12-Sept JSPS - Sendai
Global Design Effort

17. 12-Sept JSPS - Sendai
Global Design Effort

18. CesrTA - Wiggler Observations
0.002” radius
Electrode a best performance
12-Sept JSPS - Sendai
Global Design Effort
IWLC CERN, Geneva, Switzerland

19. Proposed ILC Mitigation Scheme
Field Region
Baseline Mitigation Recommendation
Alternatives for Further Investigation
Drift*
TiN Coating
Solenoid Windings
NEG Coating
Dipole
Grooves with TiN Coating
Antechambers for power loads and photoelectron control
R&D into the use of clearing electrodes.
Quadrupole*
R&D into the use of clearing electrodes or grooves with TiN coating
Wiggler
Clearing Electrodes
12-Sept JSPS - Sendai
Global Design Effort

20. Test Facilities: ATF-2 large international collaboration
12-Sept JSPS - Sendai
Global Design Effort

21. ATF2 – Beam size/stability and kicker testsIP
Shintake Monitor
Final Doublet
12-Sept JSPS - Sendai
Global Design Effort

22. 12-Sept JSPS - Sendai
Global Design Effort

23. Design Update Global design and decision making
12-Sept JSPS - Sendai
Global Design Effort

24. RDR Complete Reference Design Report (4 volumes) Physics Executive
Summary
Physics
at the
ILC
Detectors
Accelerator
12-Sept JSPS - Sendai
Global Design Effort

25. RDR Design Parameters Max. Center-of-mass energy 500 GeV
Peak Luminosity
~2x1034
1/cm2s
Beam Current
9.0 mA
Repetition rate 5 Hz
Average accelerating gradient
31.5
MV/m
Beam pulse length
0.95 ms
Total Site Length 31 km
Total AC Power Consumption
~230 MW
12-Sept JSPS - Sendai
Global Design Effort

26. Establishing Baseline for the TDR
12-Sept JSPS - Sendai
Global Design Effort

27. Proposed Design changes for TDR
RDR
SB2009
Single Tunnel for main linac
Move positron source to end of linac ***
Reduce number of bunches factor of two (lower power) **
Reduce size of damping rings (3.2km)
Integrate central region
Single stage bunch compressor
12-Sept JSPS - Sendai
Global Design Effort

28. Technical Design Phase and Beyond
change control process
AAP
PAC
Physics
TDP Baseline Technical Design
TDR
RDR Baseline
SB2009 evolve
TDP-2
TDP-1
Beijing Workshop
CERN Workshop
Change
Request
RDR ACD concepts
R&D Demonstrations
AD&I studies
2009
2010
2011
2012
2013
12-Sept JSPS - Sendai
Global Design Effort 28

29. Plans through 2012 -------------- Technical Design Report (TDR)
12-Sept JSPS - Sendai
Global Design Effort

30. Project Implementation Plan
Five Themes to Develop
Remains special case
Project Implementation Plan
Industrialisation
in-kind contribution models
Site requirements
Project Schedule
Remaining Technical activities
Regional expertise, global Industrialisation
Average accelerating gradient
Cost (cryomodule, mass-production models)
SCRF Technology
Sources
DR (e-cloud)
BDS / MDI
R&D (General)
Consolidation of baseline(s)
Design choices (parameters, layout etc.)
Design work (documentation)
AD&I (CFS)
ICET (schedule tool)
Traceable, defendable
Justification
Cost & Schedule
R&D (and engineering) beyond 2012
Impact (design, cost, schedule)
Mitigation (fall-back solutions)
TDR Risk
>2012
12-Sept JSPS - Sendai
Global Design Effort
Global Design Effort 30 30 30

31. Technical Design Phase 2
Timescale: Produce final reports end of 2012
Technical Design (TDR)
Project Implementation (PIP) (included)
First goal: Technical Design (TDR)
SCRF – S0 gradient; S1 Global Tests continue past 2012
Detailed technical design studies from new baseline
Updated VALUE estimate and schedule.
Remaining critical R&D and technology demonstration complete CesrTA; ATF-2; FLASH; etc.
Second Goal: Project Implementation Plan (PIP)
Studies of governance; siting solicitation and site preparations; manufacturing; etc.
12-Sept JSPS - Sendai
Global Design Effort

32. Impact of Baseline Changes
12-Sept JSPS - Sendai
Global Design Effort

33. Starting Point is the RDR Costs
12-Sept JSPS - Sendai
Global Design Effort

34. OECD PPP (Yen/USD)-annual average by year
EX-exchange rate
GDP: PPP based on all goods/services in GDP of each region
M&E: PPP based on machinery and equipment
Const: PPP based on civil construction
Full PPP determinations were done for 2005 and 2008; other year points based on GDP inflation rates
12-Sept JSPS - Sendai
Global Design Effort

35. Project Implementation Planning
12-Sept JSPS - Sendai
Global Design Effort

36. (Global) Mass Production (SCRF)
Cost Effective Mass-Production
Cavity Specs. / Yield
Plug Compatible Interfaces
Vendor Models
Production process models
In-kind contribution models
PIP
Governance
TLCC-1
Global S1
TDP-2
Critically important TDP2 activity
Learn from XFEL experience
5% ILC
Learn from LHC experience
Develop realistic models on which to base cost estimate
With industry
SCRF
12-Sept JSPS - Sendai
Global Design Effort

37. 12-Sept JSPS - Sendai
Global Design Effort

38. KEK Industrial R&D Pilot Plant
Chemical Polish room
19m x 14m ISO class-5 clean room
Electron Beam Welder
Press machine
work together with industry to develop cost-effective cavity production techniques
Triming machine
12-Sept JSPS - Sendai
Global Design Effort

39. ILC: Future after 2012 preserving GDE assets post-TDR pre-construction program
12-Sept JSPS - Sendai
Global Design Effort

40. Technical design & R&D program
ILC possible timeline CY
2010
2011
2012
2013
2014
2015
2016
2017
2018
Technical Design Report complete
Baseline established
Decision to proceed
TDR reviews
ILC
Technical design & R&D program
Site/host established
Site EOI’s
Cost Estimating
SRF system tests
Project Implementation Plan complete
XFEL operation
Physics Run 1
Interconnect repair
Physics Run 2
LHC
Existence of low-lying SUSY known
Higgs energy scale known
timegap
12-Sept JSPS - Sendai
Global Design Effort

41. Technical design & R&D program
ILC possible timeline CY
2010
2011
2012
2013
2014
2015
2016
2017
2018
Technical Design Report complete
Baseline established
Decision to proceed
TDR reviews
ILC
Technical design & R&D program
Site/host established
Site EOI’s
Cost Estimating
SRF system tests
Project Implementation Plan complete
XFEL operation
Physics Run 1
Interconnect repair
Physics Run 2
LHC
Existence of low-lying SUSY known
Higgs energy scale known
timegap
12-Sept JSPS - Sendai
Global Design Effort

42. Post-2012 ILC Interim Goals & Organization
GDE will have successfully completed its mandate after TDR & PIP delivered + reviewed (mid-2013 at latest)
What should follow GDE (mandate and organization) for an interim 3-5 year period?
GDE position paper submitted to ILCSC Aug The paper addresses:
Technical Goals proposed for program?
Continued system demonstrations; Increasing energy reach
Organizational Issues for post GDE?
What are primary GDE assets that should be preserved?
What are the primary GDE weaknesses that should be improved?
12-Sept JSPS - Sendai
Global Design Effort