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20 April 06 P5 - SLAC Global Design Effort 1

ILC Updatefrom the GDE

Barry BarishGDE

Caltech


ILC Timeline

2005 2006 2007 2008 2009 2010

Global Design Effort Project

Baseline configuration

Reference Design

ILC R&D Program

Technical Design

Expression of Interest to Host

International Mgmt

….


Global Design Effort

– The Mission of the GDE • Produce a design for the ILC that includes a

detailed design concept, performance assessments, reliable international costing, an industrialization plan , siting analysis, as well as detector concepts and scope.

• Coordinate worldwide prioritized proposal driven R & D efforts (to demonstrate and improve the performance, reduce the costs, attain the required reliability, etc.)


Barish - Snowmass Plenary Talk


Baseline Configuration Document

• Our ‘Deliverable’ by the end of 2005

• A structured electronic document– Documentation (reports, drawings etc)– Technical specs.– Parameter tables– Revisions and Evolution through Change Control

Process

http://www.linearcollider.org/wiki/doku.php?id=bcd:bcd_home


Baseline Configuration Document• ILC Configuration Main

• What's New• March 28, 2006 - RTML section has been updated (v.Mar.28 2006)• March 23, 2006 - Missing figure in the “Number of Tunnels” section

under the GDE White Papers has bee restored.• March 16, 2006 - Conventional Facilities & Siting Section has been

updated (v.Mar. 16 2006)• March 3, 2006 - RTML and Parameters Sections have been updated

(v.Mar.3 2006)

• Change Configuration Communication• Change Configuration Procedure (v.0.5, Feb. 3, 2006)• Archives of public communications regarding BCD Change Control.• Change Configuration History

http://www.linearcollider.org/wiki/lib/exe/fetch.php?cache=cache&media=bcd%3Accb-procv0.5.pdf

http://lcdev.kek.jp/ML/PubCCB/

http://www.linearcollider.org/wiki/doku.php?id=bcd:bcd_history


Baseline Configuration Document• Latest Official Version of BCD• BCD in MSWord files:

• All-in-one-file– Single PDF File (2582kB, Updated Mar.28, 2006)– Single MSWord File (5103kB, Updated Mar.28, 2006)

• By Area Nodes:– General Parameters (233kB, Updated Mar. 3, 2006) – Electron Source (296kB) – Positron Source (316kB) – Damping Rings (554kB, Updated Feb.27, 2006)– Ring to Main Linac (313kB, Updated Mar.28, 2006) – Main Linacs (455kB) – Beam Delivery (543kB)– TeV Upgrade Scenario (26kB)

http://www.linearcollider.org/wiki/lib/exe/fetch.php?cache=cache&media=bcd%3Abcd.28mar2006.pdf

http://www.linearcollider.org/wiki/lib/exe/fetch.php?cache=cache&media=bcd%3Abcd.28mar2006.doc


Structure of the BCD

Summary-like overview for those who want to understand the choice and the why

Technical documentation of the baseline, for engineers and acc. phys. making studies towards RDR


Alternatives Section(s)

Note - ACD is part of the BCD


Next Goal – Reference Design• Reorganized the GDE toward Design / Cost Effort • A global effort to design / cost the ILC is underway

and working• Configuration Control; International Costing;

Industrialization; Siting--------------------------

• A sound design must be established with convincing and affordable costing.

• Review and guidance for the Global R&D program to demonstrate the ILC, improve over the baseline and reduce costs.


ICFA FALC

FALC Resource Board

ILCSC (MAC)

GDEDirectorate

GDEExecutive Committee

GlobalR&D Program

RDR Design Matrix

GDER & D Board

GDEChange Control Board

GDEDesign Cost Board

GDE RDR / R&D Organization

Willis Garbincius

WalkerFosterTakasakiDugan


Elements of the ILC R&D Program

• R&D in support of the BCD – Technical developments, demonstration

experiments, industrialization, etc.• Proposal-driven R&D in support of alternatives to

the baseline– Proposals for potential improvements to the

baseline, resources required, time scale, etc.– Guidance from Change Control Board

• Develop a prioritized DETECTOR R&D program aimed at technical developments needed to reach combined design performance goals


Global R&D Board (RDB) • The Global R&D Board will be responsible for assessing and providing

guidance for the overall R&D program. The RDB will suggest priorities for the research facilities and R&D supporting the baseline, the R&D on alternatives to the baseline and selective R&D that could further the field in the longer term. The mission will also include global assessments and recommended priorities for the detector R&D program and evaluate the balance between accelerator and detector R&D.

• The RDB will develop a proposal driven program, structured in the sense of defined goals, and milestones, and resources evaluated on a common basis to allow comparison across different regions and national funding systems. It will conduct reviews and identify gaps in coverage of topics, resource or technical issues, duplications, and other concerns..


Mission of the Global R&D Board

• Coordinate worldwide, prioritized, proposal- driven, R & D efforts

• The goal is clear, the detailed means required resolution by the RDB of issues, for example:– Level of coordination– Parallel efforts coordination, Regional needs– “Reviewing” role: Ideal vs specific R&D

Program– Balance ILC/ILC Detectors issues– Goals, Timelines– Interfaces, RDB/DCB, RDB/Industrialization…


RDB Board Members and Areas• Chris Damerell• Eckhard Elsen• Terry Garvey• Hitoshi Hayano• Toshiyasu Higo• Tom Himel______________________ AREAS SC CAVITIES, CRYOGENICS, BEAM DELIVERY, INJECTOR, LINAC PERFORMANCE,

INSTRUMENTATION, *****DETECTORS*****

• Lutz Lilje• Hasan Padamsee• Marc Ross• Andy Wolski• Bill Willis (Chair)

____________________

CRYOMODULES, DAMPING RINGS, POWER SOURCE, CONTROLS, HIGH AVAILABILTY,


RDB Plan for Achieving its Mission

• First tackle work that leads to immediate benefits – Project Tools to allow a Work Breakdown

structure to put all Global R&D on a common basis, needs:

• A Data Entry Tool • A Data Base with flexible features• A facility for generating needed Reports

– CERN has kindly agreed to help us with the Data Base and Reports, and our Board member Eckhard Elsen agreed to be Data Integrator to make the system work

• Generate an Ideal ILC Research Program

from Willis


Ideal ILC R&D Program• Generate WBS for ten ILC Areas (no Cryogenics R&D identified

for the Baseline), with about 400 items• The structure will allow us to note links items in different

Regions • Assign Priorities 1 (very high), 2 (high), 3 (moderate), 4 (low)

– by team of two Board members per area, with justification– Reviewed anonymously by all members, with comments – Discussion of board to reach conclusion– Face to face meeting to consider uniformities among areas 8

March– “Last” iteration took place this week

• Publication (RDB Public Wiki) took place this week

http://www.linearcollider.org/wiki/doku.php • Convenient Reports will be created from the data base at CERN

soon, useful for example for Dugan 2007 meeting in May

from Willis

http://www.linearcollider.org/wiki/doku.php

http://www.linearcollider.org/wiki/doku.php


Small sample of Data Entry

Key dependin g on Short Title Priority Institute1 Institute2 Status Full Des criptionAc c e lerator Ac c e le ratorDR Ac c e lerato r Dampin g RingCR Ac c e lerato r Cryoge nicSC Ac c e lerato r SC Cav itySC_ Shapes SC SC Cav ity Shapes Explore new c av ity s h apes s uc h as L L an d R E to

dec rea s e Hpk /Eac c .SC_ Shapes _ L L SC_ Shap es L ow-los s c av ity s ha peSC_ Shapes _ L L _ wak e SC_ Shap es _ L L L L wak e fie ld ana ly s is high F NAL SL AC in progres s Carry ou t c omplete wak e fie ld ana ly s is c omp uta tiona lly

and c h ec k with meas urementsSC_ Shapes _ L L _ gradie nt SC_ Shap es _ L L L L grad ient high KEK T JNAF in progres s Ac hiev e gradient and Q expec ta tions up to a t lea s t

35MV/m firs t in 9-c e ll c av ity tes ts .SC_ Shapes _ L L _ modu le SC_ Shap es _ L L L L perfo rmanc e in mo dules moderate KEK in progres s Ac hiev e gradient and Q expec ta tions up to a t lea s t

35MV/m in modules with beam. Che c k Wak e fi eld s and HOM da mping in modu les with bea m.

SC_ Shapes _ RE SC_ Shap es Re-entra nt c av ity s ha peSC_ Shapes _ RE_ wak e SC_ Shap es _ RE RE wak e fie ld ana ly s is high F NAL SL AC in progres s Carry ou t c omplete wak e fie ld ana ly s is c omp uta tiona lly

and c h ec k with meas urementsSC_ Shapes _ RE_ gradie nt SC_ Shap es _ RE RE grad ient high Corne ll in progres s Ac hiev e gradient and Q expec ta tions up to a t lea s t

35MV/m firs t in 9-c e ll c av ity tes ts .SC_ Shapes _ RE_ modu le SC_ Shap es _ RE RE perfo rmanc e in mo dules moderate undefin ed Ac hiev e gradient and Q expec ta tions up to a t lea s t

35MV/m in modules with beam. Che c k Wak e fi eld s and HOM da mping in modu les with bea m.

SC_ Shapes _ Sus u SC_ Shap es Supers truc ture with s u perc ond uc ting jo int moderate T JNAF in progres s Explore the 's upers truc ture ' c onc e pt to improve the pac k in g frac tion and re duc es the number o f c ouple rs .Deve lop a s uperc ond uc ting jo int to join s upers truc ture c av ity p a irs a fter proc es s ing.to a vo id handlin g with > 2m s truc tures .

SC_ Materia ls SC SC Mate ria lsSC_ Materia ls _ F ine_ Gra in SC_ Materia ls Standa rd fine-gra in materia lSC_ Materia ls _ F ine_ Gra in_ Indus try _ Proc es sSC_ Materia ls _ F ine_ Gra in Nb indu s tria l proc es s optimiz atio n high DESY in progres s Unders tand and optimiz e the indu s tria l produc tion

proc es s , e .g. number o f melts to reac h the s pec ifie d RRR/imp urity c ontent fo r c os t s av ing s ,

SC_ Materia ls _ F ine_ Gra in_ Nec h_ P rope rtiesSC_ Materia ls _ F ine_ Gra in F ine-gra in mec hanic a l propertie s high DESY in progres s Explore the mec hanic a l properties o f fine gra in rolle d s heet materia l

SC_ Materia ls _ F ine_ Gra in_ Sheet_ Q C SC_ Materia ls _ F ine_ Gra in Nb s he et QC high DESY in progres s Explore better s heet qu a lity c ontro l meas ures th an pres en t eddy c urrent s c anning to a llow detec tion o f <100 u m s iz e defec ts on s tarting N b

SC_ Materia ls _ F ine_ Gra in_ Pos tpurifi catio nSC_ Materia ls _ F ine_ Gra in Need fo r pos t-purific a tion with e le ctro po lis hed multi-c e ll c av ities .high DESY in progres s Es tablis h or e liminate the need for po s t purific atio n whic h in c reas es RRR and gives higher perfo rma nc e in the pres enc e o f defec ts , but lowers y ie ld s treng th.

SC_ Materia ls _ F ine_ Gra in_ Tanta lum_ Spe cSC_ Materia ls _ F ine_ Gra in Re lax Ta nta lum impurity s pec ific atio n. moderate T JNAF in progres s Explore whether Ta impu rity s pec c a n be re laxe d to lower ma teria l c os ts .

SC_ Materia ls _ L arge_ Gra in SC_ Materia ls L arge o r s ingle -gra in materia lSC_ Materia ls _ L arge_ Gra in _ Slic ing SC_ Materia ls _ L arge_ G ra in L arge o r s ingle -gra in s lic ing tec h niq ues . high Corne ll DESY in progres s Explore c os t s av ings in Nb materia l from the la rge or

s ingle -c ry s ta l s lic ed dire c tly from the in got. Deve lo p fas t, inex pens ive s he et s lic ing tec hniques .

SC_ Materia ls _ L arge_ Gra in _ P ropertie s SC_ Materia ls _ L arge_ G ra in L arge o r s ingle -gra in materia l prop ertie s . moderate Corne ll DESY in progres s Improve unders tandin g o f mec ha nic a l, e tc hin g a nd ox idatio n properties with c ry s ta l o rien tation. Importa nt topic s a re : ac c eptable y ie ld s treng th o f materia l c ut direc tly fro m ingot, unifo rmity during fo rmin g o f ha lf c e lls , s lip page o f gra ins during fo rmin g

SC_ Materia ls _ L arge_ Gra in _ Multic e lls SC_ Materia ls _ L arge_ G ra in L arge o r s ingle -gra in multi-c e ll tes ts high DESY T JNAF in progres s Fabric ate and tes t c omp lete 9-c e ll c a v ities with en d groups us ing la rge gra in or s ingle g ra in materia l.

SC_ Materia ls _ L arge_ Gra in _ Module SC_ Materia ls _ L arge_ G ra in L arge o r s ingle -gra in multi-c e ll tes ts in modules moderate undefin ed Prepare and tes t modu les with c av ities .SC_ Materia ls _ NbCu SC_ Materia ls NbCu la minated mate ria l Explore Nb/Cu laminate approac h es . (Nb laye r ~ 0 .5

mm thic k ) c ombined with the inc reas ed thermal c ondu c tiv ity and s tiffn es s o f the c opper bac kin g.

SC_ Materia ls _ NbCu_ Bon ding SC_ Materia ls _ NbCu NbCu b onding meth od moderate DESY KEK in progres s Choos e bonding me thod: explo s ion bond ing , hot ro lling HIP , bac k ex trus ion.

SC_ Materia ls _ NbCu_ Rigid ity SC_ Materia ls _ NbCu NbCu c av ity rig idity moderate DESY KEK in progres s Deve lo p deta il method to mak e c a v ity rig id aga ins t L orentz fo rc e . Determine how to han dle end-gro up s .

SC_ Materia ls _ NbCu_ Multic e lls SC_ Materia ls _ NbCu NbCu multi-c e lls moderate undefin ed Fabric ate and tes t c omp lete 9-c e ll c a v ities with en d groups . P repare and te s t modules with c av ities .

SC_ Bas ic _ S tudies SC Sc Bas ic StudiesSC_ Bas ic _ S tudies _ BCR F _ theory SC_ Bas ic _ Studies RF c ritic a l fie ld theory moderate undefin ed Theore tic a l s tudies on the RF c ritic a l magnetic fi eldSC_ Bas ic _ S tudies _ BCR F _ expe rimen ta lSC_ Bas ic _ Studies RF c ritic a l fie ld experiments moderate undefin ed Meas u rements o f the R F c ritic a l fie ldSC_ Bas ic _ S tudies _ F E_ s urfac es SC_ Bas ic _ Studies Prepare F E-free s urfac es high undefin ed Explore new methods to prepare fi e ld emis s io n fre e

s urfac e s

SC_HOM_2K_Cryoload SC_HOM HOM induced cryoload at 2K high DESY undefined Measure cryogenic power deposited by beam induced HOMs at 2K to be sure that this is less than 20% (?) or as required to keep the overall cryo load under control

SC_HOM_Improve_Existing SC_HOM Improve existing design high DESY KEK in progress Slight modifications to the HOM coupler, and pickup design for ease of fabrication, fundamental power rejection, and thermal stability.

SC_HOM_Absorber_Material SC_HOM HOM absorber material high DESY Cornell in progress Work on reproducible properties of beam line absorber material.

SC_HOM_Feedthroughs SC_HOM Higher heat conductivity feedthroughs moderate TJNAF DESY in progress Explore higher heat conductivity feedthroughs for the output lines

SC_HOM_Alternate SC_HOM Alternate HOM couplers moderate TJNAF KEK undefined Explore alternate HOM couplersSC_HOM_Output_Parallel SC_HOM HOM output in F-piece plane moderate TJNAF KEK undefined Radial positioning of the HOM coupler output in the

plane of so called F-part.SC_HOM_Hidden_Capacity SC_HOM HOM: Hidden capacitor moderate TJNAF KEK undefined Version of HOM coupler with hidden output capacitor.

SC_HOM_No_Capacity SC_HOM HOM: No capacitor moderate TJNAF KEK undefined Version of HOM coupler without output capacitor.SC_Tuner SC TunerSC_Tuner_Fast_Range SC_Tuner Increase fast tuning range very high Saclay KEK in progress Design with increased fast tuning rangeSC_Tuner_Fast_Actuator SC_Tuner Fast actuator R&D very high Orsay in progress Fast actuator R&DSC_Tuner_35 SC_Tuner Prototype tests at 35 MV/m high Prototype tests with Lorentz-force compensation at 35

MV/mSC_Tuner_MTBF SC_Tuner MTBF for cold motor high undefined Verification of sufficient MTBF for cold motorSC_Tuner_TJNAF SC_Tuner Renascence tuner moderate TJNAF undefined TJNAF Renascence tuner: Design for ILC cryostatSC_Tuner_KEK SC_Tuner KEK screwball tuner high KEK in progress KEK coaxial ball screw tuner: Choice of coating material

for balls, Weight reductionSC_Tuner_Redundancy SC_Tuner Tuner redundancy high undefined Develop Redundant motor and piezo, if inside of vacuum

vesselSC_Tuner_Warm_Motor SC_Tuner Warm tuner motor low undefined Explore Warm motorSC_Tuner_Magnetostrictive SC_Tuner Magnetostrictive tuner moderate in progress Explore larger stroke Magnetrostrictive actuator with

detailed characterizationSC_Tuner_Reliability SC_Tuner Tuner reliability high undefined Conduct Reliability (MTBF) studies of motor / gearing /

piezo / magnetostrictive actuator, including failure mechanisms and improved estimate of requirements.

CM Accelerator Cryo ModuleCM_4th_gen CM Development of a 4th generation cryomodulehigh FNAL KEK in progress Type IV cryomodule will include the following features

from Type III+ : Same vacuum vessel diameter and cavity centerline location Same support posts Same cavity support detail (with roller bearings and invar rods) Same input coupler (Type III/XFEL) at l

from Willis


SRF Cavity Gradient

Cavity type

Qualifiedgradient

Operational gradient

Length* energy

MV/m MV/m Km GeV

initial TESLA 35 31.5 10.6 250

upgrade LL 40 36.0 +9.3 500

* assuming 75% fill factorTotal length of one 500 GeV linac 20km


GradientResults from KEK-DESY collaboration

must reduce spread (need more statistics)

singl

e-ce

ll m

easu

rem

ents

(in

nine

-cel

l cav

ities

)


Superconducting RF Cavities

Chemical Polish Electro Polish


Baseline Gradient


Large Grain Single Crystal Nb Material


RF Power: Baseline Klystrons

Thales CPI Toshiba

Specification:

10MW MBK

1.5ms pulse

65% efficiency


Increasediameter beyond X-FEL


Review 2-phase pipe size and effect of slope

ILC Cryomodule


GDE Role in Coordinating / Prioritizing• Large Test Facilities

– SCRF Test Facilities• Use of DESY TTF? Duplication of new facilities?


TESLA Test Facility Linac - DESY

laser driven electron gun

photon beam diagnostics

undulatorbunch

compressor

superconducting accelerator modules

pre-accelerator

e- beam diagnostics

e- beam diagnostics

240 MeV 120 MeV 16 MeV 4 MeV


• ILC cryomodule string test facility planned for the New Muon Lab

• Upgraded FNPL will provide beam tests of ILC cryomodules (FY08 and 09)

New Muon Lab (NML)

FNPL Photo-Injector

Fermilab – SCRF Test Facility


ILC R&D KEK STF




• Missing Areas– SCRF Fabrication Facilities

• Develop and demonstrate production with yield and cost

– 10 KW Klystron development


Gradient

Results from KEK-DESY collaboration

must reduce spread (need more statistics)

singl

e-ce

ll m

easu

rem

ents

(in

nine

-cel

l cav

ities

)


SRF Cavity Gradient

Cavity type

Qualifiedgradient

Operational gradient

Length* energy

MV/m MV/m Km GeV

initial TESLA 35 31.5 10.6 250

upgrade LL 40 36.0 +9.3 500

* assuming 75% fill factorTotal length of one 500 GeV linac 20km


Superconducting RF Cavities

Chemical Polish Electro Polish


ILC R&D DESY Cavity Preparation

Electropolishing Studies @ DESY


RF Power: Baseline Klystrons

Thales CPI Toshiba

Specification:

10MW MBK

1.5ms pulse

65% efficiency






– 10 KW Klystron development • Large Scale System Tests / Demonstration

– What is needed before construction can begin


ILC R&D KEK ATF ATF2


ILC RF unit at Fermilab

Plan is to build one RF unit to be tested with Beam by 2009.

07

0908

0607-08






– 10 KW Klystron development • Large Scale System Tests / Demonstration

– What is needed before construction can begin • Preparing for Contruction Project

– Industrialization




Review 2-phase pipe size and effect of slope

ILC Cryomodule


How and when to involve industry?• Large Scale Project Characterization

– Large Project Management– Precision Engineering– International Coordination – Costing

• Industrialization– Civil Construction & Infrastructure– Cryogenics– Superconducting RF structures, couplers, etc– Electronics and Control Systems– Large Scale Computing

What Industrialization is

Regional vs GDE ?


Conclusions• Where do we want to be by 2010?

– A global technical design proposal• International costing and plan for how to build ILC

– A global organization and management• Seamless transition to central management

– A globally coordinated R&D program• Coordinated or central funding, planning and management

• What we need to do to reach the Goals above?– Support and work within GDE framework

• R&D program and industrialization

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