1. European Plasma Research Accelerator with eXcellence In Applications
Horizon 2020 Design Study for a future large Research Infrastructure
EU funded preparation of Conceptual Design Report
Duration 11/2015 – 10/2019
2nd such study in Horizon2020
EuPRAXIA
R. Assmann, DESY

2. 16 partners
CONSORTIUM
Coordinator:
DESY/Helmholtz Association

3. 16 partners
CONSORTIUM
16 associated
partners

4. CONSORTIUM 32 Public Research Institutions Private Industry
*Associated membership of SLAC being finalized, documents at DOE
**Possibility to add additio-nal associated partners if approved by collaboration board
Private Industry
Companies which have joined EuPRAXIA meetings
 WP4 meeting on lasers
L. Gizzi and F. Mathieu

5. A European Strategy for Accelerator Innovation
PRESENT EXPERIMENTS
Demonstrating 100 GV/m routinely
Demonstrating GeV electron beams
Demonstrating basic quality
EuPRAXIA INFRASTRUCTURE
Engineering a high quality, compact plasma accelerator
5 GeV electron beam for the 2020’s
Demonstrating user readiness
Pilot users from FEL, HEP, medicine, ...
PRODUCTION FACILITIES
Plasma-based linear collider in 2040’s
Plasma-based FEL in 2030’s
Medical, industrial applications soon

6. Plasma Accelerator Research Infrastructure for Europe
Users
Europe is strongly positioned in particle accelerator facilities and their applications.
Expertise
Europe is building innovative accelerators, lasers and acceleration R&D facilities.
Technology
European industry is leading in the production of high power lasers.
For the European region. Europe working together in close connection with other regions.

7. but several candidate sites
Site Considerations
EuPRAXIA = single site infrastructure
Constructed by collaboration of labs (like HEP detector, telescope)
Compact and cost-effective research infrastructure  many locations suitable
Several sites in Europe will be investigated and compared, no decision in EuPRAXIA.
Expect and support site studies on similar facilities in other regions
ONE SITE
but several candidate sites

9. A European Strategy for Accelerator Innovation
PRESENT EXPERIMENTS
Demonstrating 100 GV/m routinely
Demonstrating GeV electron beams
Demonstrating basic quality
EuPRAXIA INFRASTRUCTURE
Engineering a high quality, compact plasma accelerator
5 GeV electron beam for the 2020’s
Demonstrating user readiness
Pilot users from FEL, HEP, medicine, ...
PRODUCTION FACILITIES
Plasma-based linear collider in 2040’s
Plasma-based FEL in 2030’s
Medical, industrial applications soon

10. Towards New Accelerators Based on Plasma Technology
Basic research (R): Proving theoretical principles – discovering new schemes
Many sites.
Typically 30 M€ investment per site.
Tremendous progress in 35 years.
Effort will continue the next decades.
Focus on research: users outside scope.
Engineering (D): Improve and optimize acceleration devices, industrialize
One or few sites.
Larger investment:
30 M€ < X << 1 B€
ESFRI roadmap in 2018 or 2020
CDR for 2020
Operation 2025 to 2035
EuPRAXIA
Prototyping: Build a prototype accelerator unit to demonstrate performance
one needs the other
User operation: Build user facilities delivering beam for applications

11. Plasma Accelerator Research Infrastructure More than the Plasma Accelerator
In a circular accelerator facility: Accelerating systems < 10% of total investment
In a linear accelerator facility: Accelerating systems < 30% of total investment
Highly developed (and expensive) systems for generation/bending/focusing/diagnostics/correction/collimation/control of particle beams:
Accelerator facilities would not provide interesting performance without these systems.
For plasma accelerators not at addressed yet, due to focus on acceleration highlights and lack of budget
 EuPRAXIA to address this: build an accelerator research infrastructure for pilot users

12. EuPRAXIA Research Infrastructure for the 2020’s
5 GeV electron beam
PLASMA ACCELERATOR
5 GeV e- Research Infrastructure
HEP & OTHER USER AREA
Present Laser Plasma Accelerators
Up to 4.25 GeV electron beams
Beam
Diagnostics
FEL / RADIATION SOURCE
USER AREA

13. Sub-Systems – Combined Function vs Separated Function
Laser or Beam Driver
Plasma density
Plasma profile
Driver profile
Plasma Cell
Photo cathode, Buncher, Accelerator, Focusing, Steerer, Undulator
Diagno-stics
Combined function plasma accelerator (internal injection)
Tuning DOF
Laser and/or Beam Driver(s)
Plasma densities
Plasma profiles
Driver profiles
Collimation depths
External focusing
Dipole steerers
Conventional alternatives
Cell 1
Plasma Injector
Cell 2
Plasma Accelerator
Cell 3 (?)
Plasma Accelerator
Cell 4
Plasma Undulator, HEP, Medical
Diagnostics, external focusing, steering, collimation
Diagnostics, external focusing, steering, collimation
Diagnostics, external focusing, steering, collimation
RF Photo Injector
Magnetic Undulator
Separated function plasma accelerator (external injection)
Tuning DOF

14. Sub-Systems – Combined Function vs Separated Function
Laser or Beam Driver
Plasma density
Plasma profile
Driver profile
Each sub-system must be fully specified including consistent and performance-driven tolerances! Crucial input to approval (believable design) and technical design phase!
Plasma Cell
Photo cathode, Buncher, Accelerator, Focusing, Steerer, Undulator
Diagno-stics
Combined function plasma accelerator (internal injection)
Tuning DOF
Laser and/or Beam Driver(s)
Plasma densities
Plasma profiles
Driver profiles
Collimation depths
External focusing
Dipole steerers
Conventional alternatives
Cell 1
Plasma Injector
Cell 2
Plasma Accelerator
Cell 3 (?)
Plasma Accelerator
Cell 4
Plasma Undulator, HEP, Medical
Diagnostics, external focusing, steering, collimation
Diagnostics, external focusing, steering, collimation
Diagnostics, external focusing, steering, collimation
RF Photo Injector
Magnetic Undulator
Separated function plasma accelerator (external injection)
Tuning DOF

15. Parameter Ranges in Discussion (preliminary)
Laser “100 cube” 100 J, 100 fs, (10 Hz ) 100 Hz, multiple beams for staging/redundancy
Transfer, matching, beam diagnostics
Match in/out to beta functions of < 1mm, magnetic focusing, plasma lenses, collimation of sub-mm e- beams, diagnostic stations (low charge – small beam size)
Compact e- RF linac, photo gun:
Charge pC, energy GeV, energy spread σE/E < 0.2 %, bunch length few fs, norm. emittance < 1mm, repetition kHz, 10fs external synchronization, multi-bunch option for driving WF’s
Plasma accelerator
Working points GeV, energy spread < 1%, slice energy spread 0.1%, repetition 100 Hz, staging, compression
Alternative acc. schemes (dielectric, ...)
LWFA e- injector
Charge pC, energy GeV, energy spread σE/E < 5 %, bunch length few fs, norm. emittance < 1mm, repetition kHz, internal synchr.
Undulation
1 – 5 GeV e- beams, magnetic undulators (in/out vacuum), TGU, plasma undulators
Operation
24/7 operation, tuning approach, maximize DOF, automatic, small teams
Hybrid injector schemes (see above)

16. EuPRAXIA Laser Work WP4 "Laser Design and Optimization” L. Gizzi & F
EuPRAXIA Laser Work WP4 "Laser Design and Optimization” L. Gizzi & F. Mathieu
On May 18, 2016 at SOLEIL - France.
Leading international laboratories were represented including:
Intense Laser Irradiation Laboratoy (INO - Italy),
the Laboratoire d’Utilisations des Lasers Intenses (CNRS - France),
the Lawrence Livermore National Laboratory (USA),
the Centro de Láseres Pulsados Ultracortos Ultraintensos (University of Salamanca, Spain),
the Central Laser Facility (Science and Technology Facilities Council, UK),
The Petawatt Laser Facility (University of Texas at Austin, USA)
and international laser manufacturers such as
Thales (France),
National Energetics (USA),
Amplitude Technologies (France),
Amplitude Systèmes (France) and
Proton Laser (Spain).
“Brainstorming” session starting basic specifications of the EUPRAXIA laser from EUPRAXIA steering committee, the so-called “100 cube”: 100 J, 100 fs, 100 Hz, contrast 1010 at 10ps  100Hz
Detailed report is in preparation for Pisa meeting in June 29, Participants agreed to meet regularly every 6 months.
100cube Laser Challenge

17. Final Goal of EuPRAXIA RI: “Industrial Beam Quality”
Criterion: Transport 99% of pulses after plasma accelerator through a transport channel of p phase advance with 99% transmission at s aperture.
Criterion: Have a compact and cost-efficient accelerator that can finally be operated by a small team (2-3 persons).
Such an accelerator is useable for many applications and would be suited for the foreseen application range (hospitals, universities, industry, ...).
For discussion – to be approved by EuPRAXIA

18. Quantitative Quality Assessment in Simulation and ExperimentyN
Normalized
phase
space
Easily designed by a simple collimation system in normalized phase space
Will qualify also position jitter and betatron mismatch (beta beat)
Can be generalized also to a cut in momentum phase space (longer)
Experience: Constraining passage gives optimal tuning feedback and focus on issues
+ 10 s xN
- 10 s
- 10 s
+ 10 s

19. Specifying Required Sub-System Performances
Design ideal plasma accelerator
Based on simulations of ideal setup, inclusion of realistic errors, experience on what might be realistic and input from experiments.
Specifications for all sub-systems, like laser, RF accelerator, collimators, diagnostics, ...  triggers and guides developments
Criterion fulfilled? NO
YES
Sensitivity study against errors
Develop solutions for meeting the requirements from performance
Define set of “realistic” errors
Criterion fulfilled? NO
Realistic set of errors used as definition of the required performances per sub-system
YES

20. EuPRAXIA Steps Ahead
Define quality-success criteria for plasma accelerators (“industrial beam quality”)
Set of parameters for first study version end October 2016:
Laser driver
RF photoinjector and linac (external injection – beam driver)
Plasma injector
Plasma acceleration cell
Applications: Undulator section for FEL’s, HEP test area, medical section, industrial area, Acc. R&D area...
Auxiliary systems: external focusing, steering, collimation, diagnostics, transfer lines, matching sections, ...
Operation: 24/7, tunability, automatic algorithms, ...
Meeting here at Pisa should focus on these questions

21. Project Organization
Detailed list of names, addresses and WP memberships collected (64 names).
Work Package
WP1
WP2
WP3
WP4
WP5
WP6
WP7
WP8
WP9
WP10
WP11
WP12
WP13
WP14
No. Members 14 24 19 9 15 11 6 4 3 8 7
Management
Physics & Simulations
LPA structure
Laser
Electron beam
FEL
HEP & other apps
Outreach
Beam-driven plasmas
Other techs
FEL prototyping
Test facilities
Other radiation
Hybrid
EU Work Packages
In-Kind Work Packages
Available manpower over 4 years (from proposal):
42 man-years (new hires – paid by EU budget)
+ 81 man-years (in-kind)
Final deliverable: Project duration:
Conceptual Design Report published –
(incl. cost and comparative site study)

22. IT and Contact Email EuPRAXIA IT & web presence
Webpage for the public:
For communications & small (10Mb) file sharing:
For large files e.g. Design Report or data sets: (unlimited space, signature required for account)
Contact
Can be contacted with any problem
Please inform this of news such as:
WP meetings
recent results and publications
new WP members and newspaper articles

23. Working on the Conceptual Design Report

24. Possibilities to Contribute
Scientific and technical work:
Accelerator simulations, design of beam lines, compact RF accelerator, matching, transfer lines, collimation, diagnostics, vacuum
Laser design work – 100 cube challenge
Plasma acceleration studies, plasma source, diagnostics
Experimental tests in our R&D facilities
FEL design, HEP use case, other applications
Strategic work:
Roadmap future accelerators. ILC – CLIC – plasma LC possibilities for a combined/staged approach. RF vs laser-driven vs beam-driven.
FEL roadmap plasma accelerators ( ImPACT program in Japan)
Medical and industrial application roadmap. Accelerator R&D.
Project work:
Costing, site studies, implementation models, legal issues, safety

25. Working Together towards the CDR in next 3.5 Years
Be informed about the EuPRAXIA project in the Pisa introductory talks
Discuss with colleagues and WP leaders. Give them input!
Find your interest and place to contribute in the WP/CDR
Get your name attached to some CDR section and let us know ( WPL + Andi Walker) You can also nominate your co-workers at home
We will follow up and we will make sure that you stay informed and involved

26. General EuPRAXIA Meetings
Nov 2015: EuPRAXIA kickoff meeting
WP leaders getting together in Hamburg. Small meeting.
Jun 2016: EuroNNAc2/EuPRAXIA Pisa Meeting
Scientific/technical work meeting with most of project team, including EuroNNAc network
Oct 2016: Yearly meeting EuPRAXIA in Paris
Formal meeting. Review work progress. Decision meeting  collaboration board as ultimate decision body
All partners and associated partners invited. Guests welcome.
Sep 2017: Special EuPRAXIA session at EAAC (to be decided)
Scientific/technical session with open and large participation
Oct/Nov 2017: Yearly meeting EuPRAXIA (combine with EAAC?)
In parallel:
WP meetings, e.g. laser meetings, users’ workshop in Paris Oct 2016, ...
Steering meeting every 3 months with WP management
grant agreement (269 pages), defining the work plan, milestones and deliverables.
consortium agreement (48 pages), defining project rules.

27. Thank You for Your Attention
Be informed about the EuPRAXIA project in the Pisa introductory talks
Discuss with colleagues and WP leaders. Give them input!
Find your interest and place to contribute in the WP/CDR
Get your name attached to some CDR section and let us know ( WPL + Andi Walker) You can also nominate your co-workers at home
We will follow up and we will make sure that you stay informed and involved