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’