EUROPEAN PLASMA RESEARCH ACCELERATOR WITH EXCELLENCE IN APPLICATIONS

EUROPEAN PLASMA RESEARCH ACCELERATOR WITH EXCELLENCE IN APPLICATIONS Plenary discussion 1: Layout & major components of Eu. PRAXIA Ralph Assmann, Andreas Walker Eu. PRAXIA Collaboration Week 1 June 20 th, 2017, Hamburg, Germany This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 653782.

Outline Horizon 2020 • Status (15 min) • Eu. PRAXIA cases studied • 5 cases • Combination of cases • Proposed questions for discussion • Additional questions from audience • Discussion (45 min) P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 2

The 5 Eu. PRAXIA configurations 1) LWFA with internal injection Horizon 2020 ΔE PLASMA ACC. e- created & accelerated depleted 2) LWFA with external injection from an RF accelerator 3) LWFA with external injection from a LPA ΔE RF PLASMA ACC. Q preserved & accelerated ΔE LPA PLASMA ACC. Q preserved & accelerated 4) PWFA with an RF electron beam depleted ΔE RF PLASMA ACC. e- created & accelerated 5) L 2 PWFA or Trojan Horse scheme depleted ΔE LPA PLASMA ACC. e- created & accelerated Laser beam P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 depleted Electron beam 3

The 5 Eu. PRAXIA configurations ΔE • Science & practical considerations will determine final choice of configuration(s) • Eu. PRAXIA layout is being optimized for best synergy of lasers & RF technology Horizon 2020 PLASMA ACC. e- created & accelerated depleted ΔE RF PLASMA ACC. Q preserved & accelerated depleted ΔE LPA PLASMA ACC. Q preserved & accelerated depleted ΔE RF PLASMA ACC. e- created & accelerated depleted ΔE LPA PLASMA ACC. e- created & accelerated Laser beam P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 depleted Electron beam

Facility layout Horizon 2020 • Work on draft of layout ongoing • Suggestions from WPs were received and integrated • One example: WP 5 suggestions from WP meeting in 1/2017: – Gun & S-Band RF acc. (M 5. 2) – X-band structure for PWFA (straight section, bottom line) – Dogleg and plasma structure for LWFA with LWFA (upper line) From WP 5 meeting in January 2017 by Enrica Chiadroni P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 5

Layout proposal combining all configurations Horizon 2020 plasma injector laser beams from level above plasma accelerators RF gun & S-band structures X-band structures ~ 5 m 15 m Undulator hall Layout design by D. Kocoń & A. Walker P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 6

Layout proposal combining all configurations ~ Horizon 2020 5 m 15 m Layout design by D. Kocoń & A. Walker P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 7

Layout proposal combining all configurations Horizon 2020 plasma injector ~ B. Cros et al. , ‘Electron injector for multi-stage laserdriven plasma accelerators’, IPAC’ 17, WEPVA 001 P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 5 m 15 m Layout design by D. Kocoń & A. Walker 8

Layout proposal combining all configurations Horizon 2020 RF gun & S-band structures X-band structures plasma accelerator ~ A. Marocchino et al. , simulations with hybrid code Architect, Nucl. Instr. Meth. Phys. Res. vol. 829, 2016. P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 5 m 15 m Layout design by D. Kocoń & A. Walker 9

Layout proposal Horizon 2020 Accelerator research, undulators and user areas are located on the first level accelerator tunnel undulator hall ~3 0 m P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 user areas 10

Layout proposal Horizon 2020 RF and laser infrastructure on second level RF and TW laser system PW laser system ~3 0 m May 18, 2016 at SOLEIL The “ 100 cube laser challenge”: France • “ 100 cube” = 100 J, 100 fs, 100 Hz => 1 PW @ 100 Hz • Not a complete Ti: Sa laser system • Diode-pumped solid-state laser scheme • 2 nd laser system (Ti: Sa) operates at lower energy and shorter pulse length P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 11

Sites proposed Horizon 2020 • Eu. PRAXIA design study is site independent • Five possible sites have been discussed so far Eli Beamlines Prague, Czech Republic Central Facility Didcot, United Kingdom P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 12

Questions proposed I Horizon 2020 • Laser driven and/or beam-driven? • Status: include both From WP 5 meeting in January 2017 by Enrica Chiadroni • Do we use a switchyard or several independent accelerator lines? • Status: use switchyard HEP med PLASMA ACC. FEL P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 PLASMA ACC. HEP PLASMA ACC. med PLASMA ACC. FEL 13

Questions proposed II Horizon 2020 • Are all necessary components included? Is something missing? • e. g. beam dump needs to be included, … • How do we adjust layout for individual sites? • Status: individual facilities do this work themselves P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 14

Additional questions from audience Horizon 2020 • … P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 15

Backup Slides P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 Horizon 2020 16

Thank you for your attention Horizon 2020 The Eu. PRAXIA team P. D. Alesini, A. S. Alexandrova, M. P. Anania, N. E. Andreev, R. W. Assmann, T. Audet, A. Bacci, I. F. Barna, A. Beaton, A. Beck, A. Beluze, A. Bernhard, S. Bielawski, F. G. Bisesto, J. Boedewadt, F. Brandi, O. Bringer, R. Brinkmann, E. Bründermann, M. Büscher, G. C. Bussolino, A. Chance, M. Chen, E. Chiadroni, A. Cianchi, J. Clarke, M. Croia, M. E. Couprie, B. Cros, J. Dale, G. Dattoli, N. Delerue, O. Delferriere, P. Delinikolas, J. Dias, U. Dorda, K. Ertel, Á. Ferran Pousa, M. Ferrario, F. Filippi, J. Fils, R. Fiorito, R. A. Fonseca, M. Galimberti, A. Gallo, D. Garzella, P. Gastinel, D. Giove, A. Giribono, L. A. Gizzi, F. J. Grüner, A. F. Habib, L. C. Haefner, T. Heinemann, B. Hidding, B. J. Holzer, S. M. Hooker, T. Hosokai, B. Imre, D. A. Jaroszynski, C. Joshi, M. Kaluza, O. S. Karger, S. Karsch, E. Khazanov, D. Khikhlukha, A. Knetsch, D. Kocon, P. Koester, O. Kononenko, G. Korn, I. Kostyukov, L. Labate, C. Lechner, W. P. Leemans, A. Lehrach, F. Y. Li, X. Li, A. Lifschitz, V. Litvinenko, W. Lu, A. R. Maier, V. Malka, G. G. Manahan, S. P. D. Mangles, B. Marchetti, A. Marocchino, A. Martinez de la Ossa, J. L. Martins, K. Masaki, F. Massimo, F. Mathieu, G. Maynard, T. J. Mehrling, A. Y. Molodozhentsev, A. Mosnier, A. Mostacci, A. S. Müller, Z. Najmudin, P. A. P. Nghiem, F. Nguyen, P. Niknejadi, J. Osterhoff, D. Papadopoulos, B. Patrizi, R. Pattathil, V. Petrillo, M. A. Pocsai, K. Poder, R. Pompili, L. Pribyl, D. Pugacheva, S. Romeo, A. R. Rossi, A. A. Sahai, Y. Sano, P. Scherkl, U. Schramm, C. B. Schroeder, J. Schwindling, J. Scifo, L. Serafini, Z. M. Sheng, L. O. Silva, C. Simon, U. Sinha, A. Specka, M. J. V. Streeter, E. N. Svystun, D. Symes, C. Szwaj, G. Tauscher, A. G. R. Thomas, N. Thompson, G. Toci, P. Tomassini, C. Vaccarezza, M. Vannini, J. M. Vieira, F. Villa, C. -G. Wahlström, R. Walczak, P. A. Walker, M. K. Weikum, C. P. Welsch, J. Wolfenden, G. Xia, M. Yabashi, L. Yu, J. Zhu, A. Zigler www. eupraxia-project. eu P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 17

Is Eu. PRAXIA Accelerator Really Compact? Horizon 2020 • Detailed estimates of required space are ongoing: • Acc. tunnel + infrastructure about 300 – 600 m 2 for 5 Ge. V (depending on conf. ) • Potential factor of 5 -10 footprint reduction compared to RF based electron linac • Reduced footprint has potential to open many additional applications P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 18

Is Eu. PRAXIA Accelerator Really Compact? Horizon 2020 • Detailed estimates of required space are ongoing: • Acc. tunnel + infrastructure about 300 – 600 m 2 for 5 Ge. V (depending on conf. ) • Potential factor of 5 -10 footprint reduction compared to RF based electron linac • Reduced footprint has potential to open many additional applications • Sufficient beam quality required which is central goal of Eu. PRAXIA • Improve energy spread (“beam loading” [3] or “modulated plasma density” [4]) • Eu. PRAXIA will initially be low power and low wall-plug power efficiency • Efforts with industry and laser institutes to improve rep. rate & efficiency of currently used laser systems (also incorporate fiber-based lasers with 30 % eff. ) [3] S. Van der Meer, CLIC Note No. 3, CERN; PS, ‘ 85 -65 [4] R. Brinkmann et al. , ar. Xiv: 1603. 08489, accepted for publication in PRL P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 19

Is Eu. PRAXIA Accelerator Really Compact? Horizon 2020 • Detailed estimates of required space are ongoing: • Acc. tunnel + infrastructure about 300 – 600 m 2 for 5 Ge. V (depending on conf. ) • Potential factor of 5 -10 footprint reduction compared to RF based electron linac • Reduced footprint has potential to open many additional applications • Sufficient beam quality required which is central goal of Eu. PRAXIA • Improve energy spread (“beam loading” [3] or “modulated plasma density” [4]) • Eu. PRAXIA will initially be low power and low wall-plug power efficiency • Efforts with industry and laser institutes to improve rep. rate & efficiency of currently used laser systems (also incorporate fiber-based lasers with 30 % eff. ) • Eu. PRAXIA report will be technical design report and project proposal: • Performance, required tolerances, footprint and cost will be assessed • We hope for significant cost benefit from this new technology [3] S. Van der Meer, CLIC Note No. 3, CERN; PS, ‘ 85 -65 [4] R. Brinkmann et al. , ar. Xiv: 1603. 08489, accepted for publication in PRL P. A. Walker - Layout & major components of Eu. PRAXIA 20 th June 2017 20