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ILC@DESY
Nick Walker
KEK-DESY meeting
7th March 2005
N. Walker KEK-DESY Meeting 7.3.2005
ILC@DESY Project GroupAccelerator – EUROTeV – Experimentation
Behnke, Elsen, Walker (chair)
High Gradient Cavities
WP 6
Cryomodules
Operability, Reliability, Controls
Stabilisation, Vibration
LLRF
Diagnostics
GAN & Communications
Accelerator Physics and Design
WP 4,5
WP 7
WP 15, 16
WP 8Computing
Detector
Scientific Program
WP 11
WP 4-7
WP 28,29
XFEL
DetectorDetectorDetectorDetector
N. Walker KEK-DESY Meeting 7.3.2005
DESYs contributions to the ILC
SCRF Linac Technology Development
TTF2- currently a unique facility in the world
XFEL- major effort to consolidate TTF
technology- industrialisation- reliability- value engineering
SRF R&D (FP6 CARE)Major collaboration between EU institutes
towards improving SCRF- high-gradient programme
(electropolishing)
N. Walker KEK-DESY Meeting 7.3.2005
Most Visible ILC R&D at DESY
TESLA Test FacilityITRP ‘cold’ decision means TTF and XFEL R&D will continue to be DESY’s major contribution to ILC R&D
Most important thing TTF2 can do for ILC is to work!
N. Walker KEK-DESY Meeting 7.3.2005
XFEL Synergy
WP structure for XFEL project
N. Walker KEK-DESY Meeting 7.3.2005
XFEL Synergy
Direct 1-1 synergy with ILC
N. Walker KEK-DESY Meeting 7.3.2005
XFEL Synergy
Significant overlap with ILC
N. Walker KEK-DESY Meeting 7.3.2005
XFEL Synergy
Potential relevance to ILC
N. Walker KEK-DESY Meeting 7.3.2005
Areas of ILC R&D Not Related to SCRF
Beam Dynamics Simulations- damping ring low-emittance tuning- electron cloud and other instabilities
- main linac / BDS / IP beam stabilisation studies
- luminosity performance simulations
- beam halo collimation / detector backgrounds
Undulator-based Polarised Positron Source Development
Simulations of source performance / yieldRadiation damage (neutron) estimatesspin transport & tuning studies (for polarised
source)
mostly part of EU-FP6 EUROTeV funding
N. Walker KEK-DESY Meeting 7.3.2005
Areas of ILC R&D Not Related to SCRF
Diagnostics- PETRA laser wire project (ATF2 laserwire)- cold BPM (test station in TTF)- TTF-VUV / XFEL: (z measurement e.g.
LOLA)- Fast luminosity monitoring (pair monitor)- Precision polarimetry (low- and high-energy)- Precision spectrometry
mostly part of EU-FP6 EUROTeV funding
N. Walker KEK-DESY Meeting 7.3.2005
Areas of ILC R&D Not Related to SCRF
Fast Kicker Development- R&D needed for XFEL- applicable for DR (depends on final DR bunch
spacing) ATF2
Fast Intra-train Feedback DevelopmentDigital feedback system installed in TTF-VUVNeeded for XFEL
mostly part of EU-FP6 EUROTeV funding
N. Walker KEK-DESY Meeting 7.3.2005
Areas of ILC R&D Not Related to SCRF
Reliability & operability- (Clearly) very important for XFEL- Continued studies using Himel code (SLAC)- Benchmarking against existing machines
(TTF and HERA – ongoing)
Ground motion, vibration & stabilisation- Measurement of spectra at potential ILC sites
(on-going)- Characterisation / modelling of ‘cultural noise’- Investigation of cold linac quad vibration- Passive and active techniques for stabilisation
mostly part of EU-FP6 EUROTeV funding
N. Walker KEK-DESY Meeting 7.3.2005
Areas of ILC R&D Not Related to SCRF
GAN- Understanding the challenges of remote
operation (user needs)- Development of Mobile Virtual Laboratory
(MVL) as test bed for remote operations- ATF2?
& Communications- Defining required collaboration tools for a
global project- Developing & supporting central project
management services- Understanding how best to ‘work together’
mostly part of EU-FP6 EUROTeV funding
special talk by Ferdi Willeke after coffee
N. Walker KEK-DESY Meeting 7.3.2005
DESY, Europe, and the World
• DESY’s major contribution is the on-going activities related to the preparation for the XFEL• TESLA SCRF Linac Technology
• However, direction and scope of R&D is locked to the XFEL timescale• Do not have much flexibility
• If ILC linac R&D moves away from the basic TESLA concept, synergy with XFEL (and DESY!) will become weaker.
• For other areas of ILC research, there is more flexibility• But for EU funded projects we need to deliver what we promised
• Major changes in scope and planning maybe problematic (but not impossible).
• DESY expects to contribute to, but not necessarily lead in these areas.
N. Walker KEK-DESY Meeting 7.3.2005
DESY, Europe, and the World
• DESY can play a central role within Europe for the GDE• Leading laboratory for the TESLA Collaboration
• Coordinating Laboratory for the EU FP6 EUROTeV project(together with CERN)
• Coordinating laboratory for SRF part of the CARE EU FP6 project.
• DESY + UK Institutes probably strongest ILC advocates within Europe• but hopefully this will change.
• We strongly believe the best way forward towards realisation of the ILC is a ‘strong collaboration of equal partners’
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