EuCARD EuroNNAc Workshop Summary Session 1: Introductory Presentations P. Collier.

EuCARD EuroNNAc Workshop

Summary Session 1:Introductory Presentations

P. Collier

Session Presentations

Goals of the Network and Workshop R. Assmann

Accelerator R&D as Driver of Innovation R. Heuer

History and Outlook for Plasma Acceleration T. Toshi

Modern Lasers and Novel Acceleration Methods G. Mourou

Accelerator R&D for Particle physics S. Myers

Status Report Asia Z. Sheng

Status and Plans US (Beam Driven) M. Hogan

Status and Plans US (Laser Driven) E. Esarey

Very Dense session … A huge amount of information to compress into a short summary

Workshop and Network Goals

Conventional metallic RF structures are fundamentally limited!

Plasma walls cannot be destroyed!

The dream:

Build accelerators 100-1000 times more compact.

o A compact synchrotron light accelerator (FEL, …) for each

university lab and industry!

o Compact (and affordable) TeV colliders for high energy physics.

o Compact medical accelerators.

P.Collier Session 1 Summary

… but also very diverse

Plasma Science

Laser Science

Accelerator Science

EuroNNAc

Build bridges

Identify synergies

Define roadmap

European proposal

for facility

Ultra-fast Science

European Network for Novel Accelerators

Many challenges:

o Different notations, language and scientific cultures.

o Different goals (scientific achievement versus building

operational accelerators).

o More centralized “big science” versus more decentralized

university-based research.

o Complex, inter-disciplinary science problems.

P.Collier Session 1 Summary

Network Goals

• Comparison of different methods to drive plasma wakefields and dielectric structures: lasers, electron beams, proton beams.

• Description of required R&D that is still needed for verifying various technologies and establishing the required technological basis.

• Roadmap towards a novel beam test facility with first test applications (medical, synchrotron, ultra-fast science).

• Roadmap towards high energy physics applications with intermediate applications for applied science. – How can a 1 – 10 GeV beam test facility be best used for

developing ultra-high gradient technology for high energy physics?

• Coordination of European expertise towards one or several test facilities, including close collaboration with the US and Asian communities.

P.Collier Session 1 Summary

Timeline Milestone

May 2011 EuroNNAc Workshop at CERN: Review activities and discuss strategy

Jun 2011 First small initiative(s) into EuCARD2, if possible

Jun 2011 – 2012 Prepare coherent European strategy, maximizing synergy and maintaining productive competition

2012 – 2013 Agree on possibilities for a substantial FP8 proposal, prepare proposal

P.Collier Session 1 Summary

Accelerator R&D Driving Innovation

P.Collier Session 1 Summary

Large scientific projects stimulate innovation• Space : Apollo missions, Space Station, Pioneer/Voyager Missions• Particle Physics : accelerators in general

At CERN : LEP, LHC

Pushing back the frontiers of technology. CERN Examples:• Superconductivity, magnets, cryogenics, vacuum, survey/metrology.• Transport and installation of heavy equipment.• Solid-state detectors resistant to high-intensity radiation.• Large-scale industrial control systems.• Electronic and information systems.• Project management and co-ordination.

all topics

addressed in

accelerator

systems

P.Collier Session 1 Summary

Basic Research Accelerators are excellent tools for innovation since they tend to push the envelope of what is technically possible in a wide range of domains

Research and Training in Accelerator Science provides a variety of science opportunities and possibilities for interdisciplinary work

Development of innovative acceleration techniques, such as those based on lasers, will enhance connection between diverse scientific and engineering domains and strengthen relations to industry

Besides discovering the secrets of the Universe … a beam of the right particles with the right energy at the right intensity can shrink a tumour, produce cleaner energy, spot suspicious cargo, make a better radial tire, clean up dirty drinking water, map a protein, study a nuclear explosion, design new drug, make a heat resistant automotive cable, diagnose a decease, reduce nuclear waste, detect an art forgery, implant ions in a semi-conductor, prospect oil, date an archeological find, or package a Christmas turkey.*)

*) (Accelerators for America’s Future, DOE)

P.Collier Session 1 Summary

o Accelerators have become an indispensible component of particle physics research and discovery.

o Fundamental research in particle physics stimulates people to search for novel solutions as well as putting together new global collaborations.

o Each new accelerator and each new detector is a prototype, always unique in its type, and which requires the application of new technologies and methodologies.

o Innovative solutions for various problems are developed in collaboration with industry, solutions which result often in products with much added value.

As in the past, the accelerators of particle physics can and should play their role as spearheads in discovery, innovation and global

collaboration, now and in the future.

(CERN) Accelerator R&D for Particle Physics

P.Collier Session 1 Summary

R&D / Test Facilities for enhancing the performance of the existing machineso Major Upgrade projects at CERN – HL-LHC, LIU

High Field Magnets, Superconducting Links, SCRF (Crab Cavities) Collimation, Machine Protection, Radiation Hard Electronics HiRadMat Facility

o Extensions to existing facilities – HIE-Isolde SCRF

Preparation for the next generation of acceleratorso Linear Collider studies at the energy frontier

CLIC and ILCo SPL – high intensity proton driver, Beta-beams …

SCRF

Novel Acceleration techniqueso Use of CERN Facilities – or new test facilities

LARP (US LHC program) MagnetsSQSM TQS

LR

LQS-4m

HQTQC

Compact 400MHz Crab Cavities

LHCpipe1

LHCpipe2

194mm

New idea for a very compact elliptical 800 MHz

Collimation

R&D New Collimator Materials

HIE – ISOLDE projectCavity successfully sputtered and tested at

CERN in dedicated cryostat

Testing Facilities

P.Collier Session 1 Summary

HiRadMat• Facility to study the impact of intense pulsed beams on materials

– material damage even below melting point– material vaporization (extreme conditions)– Radiation damage to materials – change of properties– Thermal shock - beam induced pressure waves

• Uses an LHC-type (25ns) beam extracted from SPS– 440 GeV/c proton beam, 3.4MJ max pulse energy, variable spot size– Ion beams can be used as well:

173.5 GeV/n Pb82+

• Foreseen clients : LHC collimators, machine components (dumps, windows, vacuum pipe coatings), material studies (bulk, superconductors(!)), high-power targets …

Possibilities to

develop test fa

cilities based on th

e extensive

(and Unique) infra

structure at C

ERN

P.Collier Session 1 Summary 13

CERN Interest in Novel Acceleration Research

"CERN is very interested in following and participating in novel

acceleration techniques, and has as a first step agreed to

make protons available for

the study of proton-driven

plasma wakefield acceleration."

Steve MyersCERN Director of

Accelerators & Technology4 October 2010

P.Collier Session 1 Summary 14

o Brief history of collective acceleration:Collectively driven wakefields: emerging tools for HEP

(both by charged bunches and laser pulses)o Broad applications of LWFA (and lasers) HEP(colliders, XFEL, ion sources, ion acceleration, γγ collider) cancer therapy (IORT), ultrafast radiolysis, THz, X-ray sources,…. o Bridge between laser and accelerator communities: ICUIL-ICFA collaboration, Bridgelab, EuCARD,….o Collider physics challengeso Laser technology development for colIiders. e.g. ICANo Energy frontier at PeV with attosecond metrology

History and Outlook for Plasma Acceleration

Two-stage gas cell LWFA experiments

B.B. Pollock et.al., submitted 2011

Plasma emission imaging indicates thatN2 is only present in the injector stage

Electron injection can be controlled

using a two-stage gas cell

800nm Laser

Plasma Emission

IntegratedPlasma

Emission

99.5% He, 0.5% N2 100% He

• The electron density throughout the cell is measured with interferometry to be 3x1018 cm-3

• No self-trapping is observed in pure He for densities below 4x1018 cm-3

50 TW

Ionization-induced injection from the

N2 terminates after the injector stage• Filling only the injector

gives a low energy, broad spectrum feature

• Filling both stages produces high energy, high quality electron beams

Injector Accelerator

1 2 3 4 5 6 7Length (mm)

0 8

Gas Cell

The electron beams are dispersed by a ~0.5 T dipole magnet

P.Collier Session 1 Summary 16

Laser driven collider concept

Etat de l’Art HEEAUP 2005

En

erg

ie p

ar

imp

uls

ion

LIL

1 J

1 k J

100 J

10 J

10 k J

100 k J

1 M J

10 M J

0,1 J

LULI

LMJ/NIF

10 210110-1

10-2

10-3

10-4

10-5

LULI 100TW

1 kW de puissance moyenne

1 W de puissance moyenneCommercial

LULI 2000 pico 2000

Taux de répetition (Hz)

100J/10HzLuli

150J/.1HzJena

100MW High Energy Physics

104

WahooLaser Fusion

15MW

Linear Accelerator100MW

G. Mourou (2005)

Search for High Average Power and Efficient Driver Laser

18

Thin Disk Fiber Amplifier

Best o

ption a

t the m

oment a

ppears to

be th

e

Fibre

Am

plifier

The CAN concept

P.Collier Session 1 Summary 19

Bridgelab Symposium for Laser Acceleration – Paris, Jan 14, 2011 – Matthieu Somekh

Laser concept based on a diode-pumped fiber network of femtosecond pulses Device possibly based on standard, cheap and reliable telecom components

• Laser architecture allowing high peak / high average powers are desired for future societal application

• Coherent combining demonstrated for CW regime, few experiments in ns regime, no results yet in fs regime

• Coherent combining required for some application not for all of them

International Coherent Amplification Initiative (ICAN)

P.Collier Session 1 Summary 20

Different communities joining their efforts towards the collaborative evaluation of the fiber CAN concept as one of the possible solutions for the next laser-based driver generation:– Laser & fibre communities– High energy physics community

Final goal : definition, conception, design and realisation of such a laser

 Now in

a sh

ortlist

in E

U (Marc

h,

2011)

Status Reports:

AsiaUS (Beam Driven)US (Laser Driven)

P.Collier Session 1 Summary 21

ASIA

P.Collier Session 1 Summary 22

GIST-APRI, Korea

JAEA-KPSI, Japan

CAS-IOP, China

CAEP-LFRC, China

CAS-SIOM, China

RRCAT, India

280TW 720TW 300TW

890TW

100TW

150TW

NCU, Taiwan

100TW

Potential for laser accelerationin Asia: >8 labs having >100TW lasers

Some Activities

P.Collier Session 1 Summary 23

P.Collier Session 1 Summary 24

• The Asian community on laser plasma acceleration is growing both in theory/simulation and experiments. A few more new laser facilities are planned or under constructions.

• There have been a lot of collaboration in this field between different labs/groups from Asian countries.

• Potential applications of laser-driven particle beams and radiation sources are attracting significant attention among Asian research groups.

• A vibrant and active community!!

USA (Beam Driven)

P.Collier Session 1 Summary 25

P.Collier Session 1 Summary 26

Exciting ti

me for P

lasma D

riven W

akefield Accelera

tion in

the

US

Science

at the Facil

ities d

riven by N

ational L

ab-Universi

ty

Collabora

tions

US (Laser Driven)

P.Collier Session 1 Summary 27

Large number of Labs and Institutes involvedSeveral Facilities with multi-100TW-PW installationsInvolved in Laser Plasma Accelerator research

Some (few) activities

P.Collier Session 1 Summary 28

P.Collier Session 1 Summary 29

Conclusions (session, or Workshop?)

P.Collier Session 1 Summary 30

A Vibrant and Active Field – progress is being made in labs throughout the world

However, there is a huge diversity of studies and developments

Developments in the US and in Asia are impressive

Basic research facilities drives innovation. Innovation is needed for basic research accelerators!o However, it is not clear that we are ready to tackle a real machine at the

energy frontier – forget the PeV’s and and concentrate on the GeV’s!!

All the pieces are in place to start preparing the roadmap for a real facility:o Test the concept in anger for a facility that has to produce scienceo Tailor the facility as both a useful science base AND a proof of principleo ~10GeV Synchrotron Light Source?

Europe can play a role in bringing together the active groups in preparing this roadmap

CERN is ready to play a part.