The ILC - Status & Plans
Why/what is the ILC?
The GDE
The baseline design and R&D efforts
The path to the RDR
Detectors
The EGDE & summary
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Brian Foster - Cosener's Forum May 06
Why/what is ILC?
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Brian Foster - Cosener's Forum May 06
Why/what is ILC?
Because radiated synchrotron-radiation power goes like m-5,
circular e+e- colliders bigger than LEP (the previous
CERN machine) are uneconomical. We didn’t know how to
build complementary machines (like Tevatron (p-antip)
SLC
and LEP) when
LHC was proposed. Now500
wenmdo – the ILC.
The ILC is a linear collider – thus there is no synchrotron
radiation produced in bending e+e- in a circular orbit. The
1000 nm
challenges stem from this – in circular machines, the beams
50 nm
pass throughFFTB
each other many times/ second, giving many
chances for interaction – “luminosity”. In ILC, they pass
through each other once and then are dumped.
TESLA
5 nm
The only way to restore the luminosity is to crush the beams
to a tiny volume so that one pass gives all the particles the
same chance to interact that many passes gives less dense
bunches.
Brian Foster - Cosener's Forum May 06
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Status of the ILC
TESLA was the catalyst that in the last four years has moved
the ILC forwards very rapidly.
There will only be one machine like this in the world – so
it is essential that world-wide agreement be obtained. This
has been in place for ~3 years.
ECFA report:
“..the realisation, in as timely a fashion as possible, of a world-wide collaboration to
construct a high-luminosity e+e- linear collider with an energy range up to at least
400 GeV as the next accelerator project in particle physics; decisions concerning the
chosen technology and the construction site for such a machine should be made soon”
HEPAP report:
“We recommend that the highest priority of the U.S. program be a high-energy,
high-luminosity, electron-positron linear collider, wherever it is
built in the world…. We recommend that the United States prepare to bid
to host the linear collider, in a facility that is international from the inception.”
ACFA:
“ACFA urges the Japanese Government to arrange a preparatory budget
for KEK to pursue an engineering design of the collider, to study site and
civil engineering, as well as to investigate the process for the globalization.”
Brian Foster - Cosener's Forum May 06
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Status of the ILC
In January 2004 the Science Ministers of the OECD met in
Paris and, following the detailed work of a GSF Consultative
Group on particle physics that produced a road Map,
agreed a statement on the Linear Collider: Ministers
“acknowledged the importance of ensuring access to large-scale research
infrastructure and the importance of the long-term vitality of high-energy
physics. They noted the worldwide consensus of the scientific community,
which has chosen an electron-positron linear collider as the next
accelerator-based facility to complement and expand on the discoveries
that are likely to emerge from the Large Hadron Collider currently being
built at CERN. They agreed that the planning and implementation of
such a large, multi-year project should be carried out on a global basis,
and should involve consultations among not just scientists, but also
representatives of science funding agencies from interested countries.
Accordingly, Ministers endorsed the statement prepared by the OECD
Global Science Forum Consultative Group on High-Energy Physics
(see Appendix).”
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Brian Foster - Cosener's Forum May 06
Status of the ILC
In August 2004, group of “Wise Men”, chaired by B. Barish,
chose the “cold”, superconducting, RF technology over the
competing “warm” X-band RF.
Despite the fact that both US and Asian research had been in
warm technology, both regions accepted the decision and
united behind cold technology; now, transition is complete.
ICFA moved ahead quickly to appoint a Global Design
Effort (GDE) to transform the technology decision into a
full Technical Design Report, capable of being presented to
world governments for a decision to construct.
B. Barish appointed as GDE director, with three regional
M. Nozaki
directors:
BF (Europe), F. Takasaki (Asia), G. Dugan (Americas)
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Brian Foster - Cosener's Forum May 06
Status of the ILC
At end of April, EPP2010 panel produced its report.
This gave a ringing endorsement for the ILC strategy and
strong support for the US bidding to host the machine.
P. Burrows was a member of the EPP2010 committee and
can give more details at he end of my talk.
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Brian Foster - Cosener's Forum May 06
GDE
– The Mission of the GDE
• Produce a design for the ILC in 3 stages - BCD,
RDR and TDR, 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.)
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Brian Foster - Cosener's Forum May 06
GDE – Staffing
Chris Adolphsen, SLAC
Jean-Luc Baldy, CERN
Philip Bambade, LAL, Orsay
Barry Barish, Caltech
Wilhelm Bialowons, DESY
Grahame Blair, Royal Holloway
Jim Brau, University of Oregon
Karsten Buesser, DESY
Elizabeth Clements, Fermilab
Michael Danilov, ITEP
Jean-Pierre Delahaye, CERN,
Gerald Dugan, Cornell University
Atsushi Enomoto, KEK
Brian Foster, Oxford University
Warren Funk, JLAB
Jie Gao, IHEP
Terry Garvey, LAL-IN2P3
Hitoshi Hayano, KEK
Tom Himel, SLAC
Bob Kephart, Fermilab
Eun San Kim, Pohang Acc Lab
Hyoung Suk Kim, Kyungpook Nat’l Univ
Shane Koscielniak, TRIUMF
Vic Kuchler, Fermilab
Lutz Lilje, DESY
Brian Foster - Cosener's Forum May 06
Tom Markiewicz, SLAC
New
Members
David Miller, Univ
College
of London
Shekhar
Mishra, Fermilab
Peter
Garbincius
(FNAL)
Youhei Morita, KEK
Marc
Ross (SLAC)
Olivier Napoly, CEA-Saclay
Bill
Willis
(Columbia)
Hasan
Padamsee,
Cornell University
Carlo Pagani,
DESY
Andre
Seryi
(SLAC)
Nan Phinney, SLAC
John
DieterSheppard
Proch, DESY (SLAC)
PantaleoPatterson
Raimondi, INFN
Ewan
(SLAC)
Tor Raubenheimer, SLAC
Maseo
(KEK)
FrancoisKuriki
Richard, LAL-IN2P3
Perrine Royole-Degieux,
GDE/LAL
Kiyoshi
Kubo (KEK)
Kenji Saito, KEK
Nobuhiro
Terunuma (KEK)
Daniel Schulte, CERN
Norihito
Ohuchi
Tetsuo Shidara,
KEK (KEK)
Sasha Skrinsky,
Budker Institute
Susanna
Guiducci
(INFN)
Fumihiko Takasaki, KEK
Deepa
Laurent Angal-Kalinin
Jean Tavian, CERN (CCLRC)
Toge, KEK
G.Nobu
Shirkov
(JINR, Dubna)
Nick Walker, DESY
Andy Wolski, LBL
Hitoshi Yamamoto, Tohoku Univ
Kaoru Yokoya, KEK
Totals
Americas
Europe
49 members
Asia
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ILC Parameters
• Ecm adjustable from 200 – 500 GeV
• Luminosity ∫Ldt = 500 fb-1 in 4 years
• Ability to scan between 200 and 500 GeV
• Energy stability and precision below 0.1%
• Electron polarization of at least 80%
• The machine must be upgradeable to 1 TeV
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Brian Foster - Cosener's Forum May 06
BCD overview
The ILC Baseline Design was completed in
December 2005:
Process overseen by ILC Executive B. Barish, G. Dugan, BF, F. Takasaki,
T. Raubenheimer, N. Walker, K.Yokoya.
E. Elsen will give details.
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Brian Foster - Cosener's Forum May 06
Test facilities
TTF exists at
DESY,
SMTF (FNAL),
STF (KEK):
Stimulate SC
industry in the
regions collaborate on
SC technology
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Brian Foster - Cosener's Forum May 06
Test facilities
ATF @ KEK has been a great success. Time
for further improvement:
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Brian Foster - Cosener's Forum May 06
Test facilities
Extend ATF to give FF prototype - squeeze
down to 35 nm and stabilise to 2 nm.
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Brian Foster - Cosener's Forum May 06
ILC
Communications
• Launch of New ILC
Website @ Snowmass
www.linearcollider.org
• “One Stop Shopping”
– electronic data
management system
(EDMS), news, calendar
of events, education and
communication
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Brian Foster - Cosener's Forum May 06
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Brian Foster - Cosener's Forum May 06
Next steps for GDE
BCD is complete. In the next phase,
RDR will take forward the BCD, refine the
design and in particular gather
industrialisation data in order to form the
basis for reliable cost estimate with the RDR.
There are 3 new boards: Change Control
Board; Global R&D Board; Design & Cost
Board.
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Brian Foster - Cosener's Forum May 06
Next steps
FALC
ICFA
FALC
Resource Board
ILCSC
MAC
GDE
Directorate
GDE
Executive Committee
GDE
R & D Board
GDE
Change Control Board
Global
R&D Program
GDE
Design Cost Board
RDR
Design Matrix
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Brian Foster - Cosener's Forum May 06
Change control
The board has overseen the consolidation of
the baseline design and the production of a
Word document containing all information.
Dealing with requests for changes to baseline
as further work and R&D is completed.
Careful methodology developed - categorise
the importance of the change, assign
number of board members to review it
depending on importance.
During process, all GDE members can
comment on proposed change. Dealing with
~ 1 request/week.
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Brian Foster - Cosener's Forum May 06
Other boards
Design & cost board produced a (very)
detailed programme of work to lead us
towards the most important RDR deliverable
- a believable, robust and affordable costing;
a preliminary, non-public version will be
available by the summer Vancouver meeting.
R&D board has to try to impose a structure
and discipline on inherently chaotic system
- R&D - eliminating wasteful duplication
while preserving & enhancing necessary
duplication.
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Brian Foster - Cosener's Forum May 06
Next steps for GDE
The RDR will be produced using a matrix
structure of “area systems” and “technical
systems” to account for the project structure.
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Brian Foster - Cosener's Forum May 06
Next steps for GDE
The WBS
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Brian Foster - Cosener's Forum May 06
Next steps
The day-to-day work of constructing the
RDR will be supervised by an RDR board
chaired by N. Walker (DESY) which will
meet every week by telephone and report to
the ILC Executive Committee.
The meetings are going well and detailed
progress is being made.
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Brian Foster - Cosener's Forum May 06
MAC report
The first meeting of the Machine Advisory
Committee, which reports to ILCSC, took
place last month in Fermilab.
Generally they were very positive and
impressed by the scale of the progress that
has been made. They had concerns about
the current accelerating gradient spec. and
how R&D could be done to achieve it,
about communications with the
experimenters and also about the
coordination of world-wide R&D.
Brian Foster - Cosener's Forum May 06
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Detectors - SiD
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Brian Foster - Cosener's Forum May 06
Detectors - LDC
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Brian Foster - Cosener's Forum May 06
Detectors - GLD
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Brian Foster - Cosener's Forum May 06
Detectors - 4th concept
Design philosophy:
• Pixel Vertex (PX)
5-micron pixels
• TPC (like GLD or LDC)
with silicon strips on outer radius
• Crystal dual-readout ECAL
• Triple-readout fiber HCAL:
scintillation/Cerenkov/neutron (new)
• Muon dual-solenoid geometry (new),
with ATLAS drift tubes.
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Brian Foster - Cosener's Forum May 06
European GDE
European GDE meets about every 6 months.
Discusses obviously regional issues:
- how to get more resources from inside
Europe, in particular the EU;
- regional outreach - Europe has particular
difficulties & challenges here.
The European GDE does NOT discuss the
technical issues of the BCD or take up
European positions on them - these are
matters for the full GDE.
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Brian Foster - Cosener's Forum May 06
European GDE
Two meetings in CERN to explore in
particular the similarity between LHC and
ILC cryogenics and to utilise CERN
expertise, particularly in civil engineering.
Very encouraged by the great interest on
the ground in CERN in the project, the
very constructive and positive meetings
we have had and the growing involvement
of CERN staff in the ILC.
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Brian Foster - Cosener's Forum May 06
European GDE
European Outreach group re-established at
Orsay meeting in January. B. Warmbein
joined the team recently as PA to EGDE
director, based at DESY. Meeting held in
DESY just before Easter.
EGDE director’s advisory group also meets
regularly. Discussed plans for FP7 initiative
for European cryogenic RF development
centre based probably at one of big labs.
LoI for such a facility was input to CERN
Council Strategy group.
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Brian Foster - Cosener's Forum May 06
European GDE
There is an EGDE meeting in DESY next
week to discuss the shape of the FP7 proposal.
It will hear about European cryogenic RF
development centre, about possible
continuation of some current FP6
activities, the use of HERA as a prototype
damping ring, etc.
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Brian Foster - Cosener's Forum May 06
European GDE
EGDE director’s advisory group also meets
regularly to advise on strategy, particularly
for R&D.
It is clear that world-wide coordination of
R&D is going to be an important issue in
the future and we need to think about how
this can be achieved; Europe has particular
features that make this a challenge.
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Brian Foster - Cosener's Forum May 06
GDE Plan & Schedule
2005
2006
2007
2008
2009
2010
Global Design Effort
Baseline configuration
Reference Design
Project
LHC
Physics; CLIC
Technical Design
ILC R&D Program
Bids to Host; Site Selection;
International Mgmt
Next steps
July
Jan
Frascati
Bangalore
Vancouver
Dec
Valencia
Freeze Configuration
Organize for RDR
Review
Design/Cost
Methodology
Review Initial
Design / Cost
Design and Costing
Brian Foster - Cosener's Forum May 06
Review Final
Design / Cost
RDR Document
Preliminary
RDR
Released
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Summary
The ILC is making excellent progress and
the GDE is well established.
Producing the RDR & the cost estimate by the
end of the year is going to be very tough - we
need all the help & expertise that we can get.
This is a very exciting and challenging
enterprise that is vital for the future of world
particle physics.
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Brian Foster - Cosener's Forum May 06