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1. EuPRAXIA conceptual design report

Author

Ke Wang, A. Y. Molodozhentsev, L. Boulton, Barbara Marchetti, Maria Weikum, Giuseppe Dattoli, Ulrich Schramm, P. Delinikolas, Victor Malka, T. L. Audet, Anna Giribono, Cristina Vaccarezza, Erik Bründermann, Marco Bellaveglia, Fernando Brandi, Vladimir Shpakov, F. Massimo, Dimitris N. Papadopoulos, D. Ullmann, Manuel Kirchen, Christophe Simon-Boisson, Axel Bernhard, Luca Piersanti, Marco Galimberti, Masaki Kando, Federico Nguyen, Suming Weng, Dario Giove, Thomas M. Spinka, Barbara Patrizi, A. Ghigo, R. Pattathil, M. A. Pocsai, Arie Irman, A. Chancé, Y. Zhao, Hao Zhang, Zulfikar Najmudin, Vladimir Litvinenko, Fabrice Marteau, G. Kirwan, U. Rotundo, Florian Grüner, L. O. Silva, F. Falcoz, Joana Luis Martins, D. Alesini, D. Khikhlukha, Francesco Iungo, Z. Mazzotta, Angelo Biagioni, A. F. Habib, Wim Leemans, S. Jaster-Merz, Alessandro Vannozzi, Leonida A. Gizzi, Fabien Briquez, S. Bartocci, Petra Koester, Tamina Akhter, Phu Anh Phi Nghiem, G. C. Bussolino, Jorge Vieira, Adolfo Esposito, D. Di Giovenale, Jens Osterhoff, Sergio Cantarella, Kristjan Poder, Bernhard Holzer, Nicolas Delerue, Brigitte Cros, Fabio Villa, Igor Andriyash, Alessandro Stecchi, Paul Crump, Sally Wiggins, Constantin Haefner, A. Del Dotto, Oscar Jakobsson, Alessandro Gallo, Emily Sistrunk, G. Di Pirro, Olena Kononenko, Yang Li, P. Campana, A. Martinez de la Ossa, Anke-Susanne Müller, Christoph Lechner, Brendan A. Reagan, Stuart Mangles, Andrew Sutherland, D. Kocon, E. N. Svystun, Simon M. Hooker, Ruggero Ricci, Javier Resta-López, C. D. Murphy, R. Walczak, Dino A. Jaroszynski, M. Yabashi, Chan Joshi, P. Santangelo, Maria Pia Anania, Konstantin Kruchinin, C. Simon, M. Hübner, C. A. Lindstrøm, Markus Büscher, Ulrich Dorda, J. Wolfenden, Alvin C. Erlandson, G. Korn, Sergey Mironov, Alessandro Rossi, Carl Schroeder, Zheng-Ming Sheng, Olle Lundh, T. Silva, Lucas Schaper, A. Ferran Pousa, M. Del Franco, Audrey Beluze, M. H. Bussmann, Alberto Marocchino, Gilles Maynard, Min Chen, Andrea Mostacci, Alexander Knetsch, Renato Fedele, M. Rossetti Conti, Amin Ghaith, G. Costa, R. Brinkmann, Gaetano Fiore, Claes-Göran Wahlström, J. Fils, Luca Serafini, Fabrizio Bisesto, J. Cowley, X. Li, Andreas Lehrach, Augusto Marcelli, Vittoria Petrillo, M. Ibison, Antonio Falone, A. Beck, Bruno Buonomo, D. Oumbarek Espinos, Daria Pugacheva, Stefan Karsch, A. Beaton, A. Nutter, Carsten Welsch, F. Mathieu, Christophe Szwaj, R. Fiorito, Paul Scherkl, C. Le Blanc, Arie Zigler, J. Scifo, Malte C. Kaluza, Craig W. Siders, Angelo Stella, Mathieu Valléau, Ujjwal Sinha, M. J. V. Streeter, A. Welsch, Efim A. Khazanov, Eléonore Roussel, Gianluca Sarri, Lucia Sabbatini, Silvia Morante, T. Heinemann, A. Aschikhin, G. Di Raddo, L. Pribyl, S. Romeo, Alberto Bacci, N. E. Andreev, Matteo Vannini, A. Bonatto, Francesco Filippi, Klaus Ertel, Riccardo Pompili, Ricardo Fonseca, Olivier Marcouillé, E. Di Pasquale, Jason Cole, M. Artioli, R. D'Arcy, Giovanni Franzini, Marco Diomede, Andreas Maier, I. Kostyukov, A. Specka, Serge Bielawski, Wei Lu, F. Cioeta, A. Mosnier, Grace Manahan, S. Vescovi, Alessandro Cianchi, P. Niknejadi, Francesco Stellato, Luigi Pellegrino, Oliver Karger, A. Helm, Bernhard Hidding, Paolo Tomassini, J. A. Clarke, A. Petralia, Davide Terzani, Enrica Chiadroni, Ralph Assmann, Alexandra Alexandrova, Paul Mason, R. Rossmanith, Jun Zhu, Thomas C. Galvin, R. Torres, Agustin Lifschitz, M. E. Couprie, Massimo Ferrario, F. Brottier, S. De Nicola, Kevin Cassou, Tomonao Hosokai, Andy J. Bayramian, J. L. Paillard, Gabriele Tauscher, P. A. Walker, Geetanjali Sharma, P. Lee, Guido Toci, Farzad Jafarinia, Simona Incremona, Imre Ferenc Barna, Charles Kitegi, D. R. Symes, M. Croia, Vladyslav Libov, J. M. Dias, Guoxing Xia, L. Labate, Assmann, R. W., Weikum, M. K., Akhter, T., Alesini, D., Alexandrova, A. S., Anania, M. P., Andreev, N. E., Andriyash, I., Artioli, M., Aschikhin, A., Audet, T., Bacci, A., Barna, I. F., Bartocci, S., Bayramian, A., Beaton, A., Beck, A., Bellaveglia, M., Beluze, A., Bernhard, A., Biagioni, A., Bielawski, S., Bisesto, F. G., Bonatto, A., Boulton, L., Brandi, F., Brinkmann, R., Briquez, F., Brottier, F., Brundermann, E., Buscher, M., Buonomo, B., Bussmann, M. H., Bussolino, G., Campana, P., Cantarella, S., Cassou, K., Chance, A., Chen, M., Chiadroni, E., Cianchi, A., Cioeta, F., Clarke, J. A., Cole, J. M., Costa, G., Couprie, M. -E., Cowley, J., Croia, M., Cros, B., Crump, P. A., D'Arcy, R., Dattoli, G., Del Dotto, A., Delerue, N., Del Franco, M., Delinikolas, P., De Nicola, S., Dias, J. M., Di Giovenale, D., Diomede, M., Di Pasquale, E., Di Pirro, G., Di Raddo, G., Dorda, U., Erlandson, A. C., Ertel, K., Esposito, A., Falcoz, F., Falone, A., Fedele, R., Ferran Pousa, A., Ferrario, M., Filippi, F., Fils, J., Fiore, G., Fiorito, R., Fonseca, R. A., Franzini, G., Galimberti, M., Gallo, A., Galvin, T. C., Ghaith, A., Ghigo, A., Giove, D., Giribono, A., Gizzi, L. A., Gruner, F. J., Habib, A. F., Haefner, C., Heinemann, T., Helm, A., Hidding, B., Holzer, B. J., Hooker, S. M., Hosokai, T., Hubner, M., Ibison, M., Incremona, S., Irman, A., Iungo, F., Jafarinia, F. J., Jakobsson, O., Jaroszynski, D. A., Jaster-Merz, S., Joshi, C., Kaluza, M., Kando, M., Karger, O. S., Karsch, S., Khazanov, E., Khikhlukha, D., Kirchen, M., Kirwan, G., Kitegi, C., Knetsch, A., Kocon, D., Koester, P., Kononenko, O. S., Korn, G., Kostyukov, I., Kruchinin, K. O., Labate, L., Le Blanc, C., Lechner, C., Lee, P., Leemans, W., Lehrach, A., Li, X., Li, Y., Libov, V., Lifschitz, A., Lindstrom, C. A., Litvinenko, V., Lu, W., Lundh, O., Maier, A. R., Malka, V., Manahan, G. G., Mangles, S. P. D., Marcelli, A., Marchetti, B., Marcouille, O., Marocchino, A., Marteau, F., Martinez de la Ossa, A., Martins, J. L., Mason, P. D., Massimo, F., Mathieu, F., Maynard, G., Mazzotta, Z., Mironov, S., Molodozhentsev, A. Y., Morante, S., Mosnier, A., Mostacci, A., Muller, A. -S., Murphy, C. D., Najmudin, Z., Nghiem, P. A. P., Nguyen, F., Niknejadi, P., Nutter, A., Osterhoff, J., Oumbarek Espinos, D., Paillard, J. -L., Papadopoulos, D. N., Patrizi, B., Pattathil, R., Pellegrino, L., Petralia, A., Petrillo, V., Piersanti, L., Pocsai, M. A., Poder, K., Pompili, R., Pribyl, L., Pugacheva, D., Reagan, B. A., Resta-Lopez, J., Ricci, R., Romeo, S., Rossetti Conti, M., Rossi, A. R., Rossmanith, R., Rotundo, U., Roussel, E., Sabbatini, L., Santangelo, P., Sarri, G., Schaper, L., Scherkl, P., Schramm, U., Schroeder, C. B., Scifo, J., Serafini, L., Sharma, G., Sheng, Z. M., Shpakov, V., Siders, C. W., Silva, L. O., Silva, T., Simon, C., Simon-Boisson, C., Sinha, U., Sistrunk, E., Specka, A., Spinka, T. M., Stecchi, A., Stella, A., Stellato, F., Streeter, M. J. V., Sutherland, A., Svystun, E. N., Symes, D., Szwaj, C., Tauscher, G. E., Terzani, D., Toci, G., Tomassini, P., Torres, R., Ullmann, D., Vaccarezza, C., Valleau, M., Vannini, M., Vannozzi, A., Vescovi, S., Vieira, J. M., Villa, F., Wahlstrom, C. -G., Walczak, R., Walker, P. A., Wang, K., Welsch, A., Welsch, C. P., Weng, S. M., Wiggins, S. M., Wolfenden, J., Xia, G., Yabashi, M., Zhang, H., Zhao, Y., Zhu, J., Zigler, A., Deutsches Elektronen-Synchrotron [Hamburg] (DESY), Istituto Nazionale di Fisica Nucleare, Sezione di Napoli (INFN, Sezione di Napoli), Istituto Nazionale di Fisica Nucleare (INFN), Laboratori Nazionali di Frascati (LNF), Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Engineering & Physical Science Research Council (EPSRC), Science and Technology Facilities Council (STFC), and EuPRAXIA

Subjects
Technology, electron: energy, AMPLIFIED SPONTANEOUS-EMISSION, wake field [plasma], General Physics and Astronomy, costs, plasma: wake field, free electron laser, GeV, 01 natural sciences, 7. Clean energy, wake field [acceleration], 010305 fluids & plasmas, law.invention, Laser technology, acceleration: wake field, Conceptual design, FREE-ELECTRON LASER, AT-SPARC-LAB, law, IN-CELL CODE, [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph], PLASMA-WAKEFIELD ACCELERATION, General Materials Science, LATERAL SHEARING INTERFEROMETRY, media_common, Applied Physics, Settore FIS/01, 02 Physical Sciences, T1, light source, Physics, Settore FIS/07, accelerator: plasma, Schedule (project management), Physical Sciences, Systems engineering, positron, Plasma acceleration, X rays, compact accelerators, performance, WAKE-FIELD ACCELERATION, X-RAY SOURCE, Project implementation, Fluids & Plasmas, Physics, Multidisciplinary, accelerator [electron], Physics and Astronomy(all), HIGH PEAK POWER, electron: accelerator, horizon, medicine: imaging, X-ray, accelerators, Materials Science(all), 0103 physical sciences, media_common.cataloged_instance, ddc:530, European union, Physical and Theoretical Chemistry, 010306 general physics, energy [electron], 01 Mathematical Sciences, plasma: acceleration, acceleration [plasma], Electron energy, Science & Technology, imaging [medicine], plasma [accelerator], Particle accelerator, plasmas, Accelerators and Storage Rings, laser, Automatic Keywords, gamma ray, linear collider, ddc:600, CHIRPED-PULSE AMPLIFICATION
Abstract

European physical journal special topics 229(24), 3675 - 4284 (2020). doi:10.1140/epjst/e2020-000127-8, This report presents the conceptual design of a new European research infrastructure EuPRAXIA. The concept has been established over the last four years in a unique collaboration of 41 laboratories within a Horizon 2020 design study funded by the European Union. EuPRAXIA is the first European project that develops a dedicated particle accelerator research infrastructure based on novel plasma acceleration concepts and laser technology. It focuses on the development of electron accelerators and underlying technologies, their user communities, and the exploitation of existing accelerator infrastructures in Europe. EuPRAXIA has involved, amongst others, the international laser community and industry to build links and bridges with accelerator science — through realising synergies, identifying disruptive ideas, innovating, and fostering knowledge exchange. The Eu-PRAXIA project aims at the construction of an innovative electron accelerator using laser- and electron-beam-driven plasma wakefield acceleration that offers a significant reduction in size and possible savings in cost over current state-of-the-art radiofrequency-based accelerators. The foreseen electron energy range of one to five gigaelectronvolts (GeV) and its performance goals will enable versatile applications in various domains, e.g. as a compact free-electron laser (FEL), compact sources for medical imaging and positron generation, table-top test beams for particle detectors, as well as deeply penetrating X-ray and gamma-ray sources for material testing. EuPRAXIA is designed to be the required stepping stone to possible future plasma-based facilities, such as linear colliders at the high-energy physics (HEP) energy frontier. Consistent with a high-confidence approach, the project includes measures to retire risk by establishing scaled technology demonstrators. This report includes preliminary models for project implementation, cost and schedule that would allow operation of the full Eu-PRAXIA facility within 8—10 years., Published by Springer, Heidelberg

Published
2020

2. Matching small β functions using centroid jitter and two beam position monitors

Author

S. Wesch, P. Gonzalez, Bernhard Schmidt, R. D'Arcy, M. J. Garland, C. A. Lindstrøm, S. Schröder, and Jens Osterhoff

Subjects
Nuclear and High Energy Physics, Physics and Astronomy (miscellaneous), wake field [plasma], measurement methods, two-beam, plasma: wake field, chromaticity, 01 natural sciences, law.invention, beta function, Optics, phase space [beam], law, Position (vector), 0103 physical sciences, ddc:530, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, Thermal emittance, DESY Lab, 010306 general physics, Collider, beam position: monitoring, Jitter, Physics, 010308 nuclear & particles physics, business.industry, plasma [accelerator], accelerator: plasma, beam: phase space, Centroid, Monte Carlo [numerical calculations], Surfaces and Interfaces, beam focusing, beam optics, Phase space, monitoring [beam position], lcsh:QC770-798, Physics::Accelerator Physics, Physics - Accelerator Physics, Strong focusing, numerical calculations: Monte Carlo, business, Beam (structure)
Abstract

Physical review accelerators and beams 23(5), 052802 (2020). doi:10.1103/PhysRevAccelBeams.23.052802, Matching to small beta functions is required to preserve emittance in plasma accelerators. The plasma wake provides strong focusing fields, which typically require beta functions on the mm-scale, comparable to those found in the final focusing of a linear collider. Such beams can be time consuming to experimentally produce and diagnose. We present a simple, fast, and noninvasive method to measure Twiss parameters in a linac using two beam position monitors only, relying on the similarity of the beam phase space and the jitter phase space. By benchmarking against conventional quadrupole scans, the viability of this technique was experimentally demonstrated at the FLASHForward plasma-accelerator facility., Published by American Physical Society, College Park, MD

Published
2020

3. Towards Experimental Investigation of Hosing Instability Mitigation at the PITZ Facility

Author

Gregor Loisch, Jens Osterhoff, Matthias Gross, Christian Koschitzki, A. Martinez de la Ossa, Frank Stephan, and O. Lishilin

Subjects
History, Brightness, electron: acceleration, wake field [plasma], plasma: wake field, transverse [wake field], wake field [acceleration], Instability, Education, Acceleration, Optics, acceleration: wake field, Physics::Plasma Physics, oscillation [plasma], wake field: transverse, ddc:530, DESY Lab, electron: beam, numerical calculations, acceleration [electron], Coupling, Physics, business.industry, Oscillation, stability, Plasma acceleration, beam [electron], Computer Science Applications, Transverse plane, Physics::Accelerator Physics, business, plasma: oscillation, Beam (structure)
Abstract

4th European Advanced Accelerator Concepts Workshop, EAAC2019, La Biodola, Italy, 15 Sep 2019 - 21 Sep 2019; Journal of physics / Conference Series 1596(1), 012003 (2020). doi:10.1088/1742-6596/1596/1/012003, Beam-driven plasma wakefield acceleration (PWFA) allows for high gradient acceleration of electron beams and hence is a promising candidate for compact and cost-efficient drivers of applications demanding high brightness beams. One of the main challenges in these accelerators is to control beam-plasma instabilities with rapid growth rates which are induced by the strong transverse components of the wakefields. The hosing instability, a growing transverse oscillation of the beam centroid caused by coherent coupling between bunch slice centroids and transverse wakefields, was predicted to set severe limits on the possible acceleration distance in PWFAs. Several methods have been proposed to damp or even suppress the hosing of the beam, prevent beam-breakup and thus allow stable operation. Here, we present preparations and simulation studies aiming at the experimental investigation of hosing suppression mechanisms at the PITZ facility., Published by IOP Publ., Bristol

Published
2020
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4. High-Quality Positron Acceleration in Beam-Driven Plasma Accelerators

Author

S. Diederichs, Carlo Benedetti, Jens Osterhoff, Eric Esarey, and Carl Schroeder

Subjects
Nuclear and High Energy Physics, Physics and Astronomy (miscellaneous), wake field [plasma], plasma: wake field, Electron, Wake, 01 natural sciences, law.invention, wake field [accelerator], Nuclear physics, Acceleration, Quality (physics), Positron, accelerator: wake field, Affordable and Clean Energy, law, Physics::Plasma Physics, positron: acceleration, 0103 physical sciences, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, ddc:530, electron: beam, 010306 general physics, Collider, numerical calculations, New Acceleration Techniques, Physics, 010308 nuclear & particles physics, acceleration [positron], Surfaces and Interfaces, Plasma, Nuclear & Particles Physics, beam [electron], beam loading, Physical Sciences, lcsh:QC770-798, Physics::Accelerator Physics, High Energy Physics::Experiment, Beam (structure)
Abstract

Physical review accelerators and beams 23(12), 121301 (1-8) (2020). doi:10.1103/PhysRevAccelBeams.23.121301, Acceleration of positron beams in plasma-based accelerators is a highly challenging task. To realize a plasma-based linear collider, acceleration of a positron bunch with high-efficiency is required, while maintaining both a low emittance and a subpercent-level energy spread. Recently, a plasma-based positron acceleration scheme was proposed in which a wake suitable for the acceleration and transport of positrons is produced in a plasma column by means of an electron drive beam [Diederichs et al., Phys. Rev. Accel. Beams 22, 081301 (2019)]. In this article, we present a study of beam loading for a positron beam in this type of wake. We demonstrate via particle-in-cell simulations that acceleration of high-quality positron beams is possible, and we discuss a possible path to achieve collider-relevant parameters., Published by American Physical Society, College Park, MD

Published
2020

5. AWAKE, The Advanced Proton Driven Plasma Wakefield Acceleration Experiment at CERN

Author

Allen Caldwell, E. Öz, Zulfikar Najmudin, Peter Sherwood, Konstantin Lotov, Heiko Damerau, Andrei Seryi, L. Soby, J. Holloway, Chiara Bracco, L. O. Silva, A. Butterworth, Gennady Plyushchev, Ligia Diana Amorim, M. Turner, C. Hessler, V. N. Fedosseev, F. Keeble, M. Martyanov, F. Friebel, John-Bjarne Hansen, Roberto Martorelli, V. K. Berglyd Olsen, Matthew Wing, T. Bohl, Graeme Burt, Michele Cascella, E. Feldbaumer, V. A. Verzilov, L. Deacon, S. Mandry, P. Dirksen, O. Mete, Patric Muggli, Y. Wei, K. Rieger, S. Doebert, Zheng-Ming Sheng, Erik Adli, B. Biskup, S. Liu, M. Bernardini, M. Hüther, James Mitchell, Raoul Trines, Muhammad Kasim, Ulrich Dorda, F. Salveter, P. V. Tuev, L. Jensen, Olaf Grulke, Robert Apsimon, R. Fiorito, Edda Gschwendtner, Nelson Lopes, S. Jolly, K. Pepitone, Carsten Welsch, Dino A. Jaroszynski, R. I. Spitsyn, Ricardo Fonseca, N. Savard, Hao Zhang, A. A. Gorn, John P. Farmer, B. Buttenschön, Ans Pardons, F. Batsch, Alexander Pukhov, A. P. Sosedkin, H. Vincke, A.-M. Bachmann, Guoxing Xia, E. Shaposhnikova, Robert Bingham, R.W. Assmann, Eric Chevallay, V. A. Minakov, Atefeh Joulaei, Wolfgang Höfle, Stefano Mazzoni, Hartmut Ruhl, Janet Schmidt, Silvia Cipiccia, Philip Burrows, Yang Li, Peter Norreys, Alexey Petrenko, J. T. Moody, J. Bauche, and Jorge Vieira

Subjects
Accelerator Physics (physics.acc-ph), Nuclear and High Energy Physics, CERN Lab, Proton, wake field [plasma], Proton driven plasma wakefield acceleration, FOS: Physical sciences, Electron, wake field [acceleration], 01 natural sciences, Linear particle accelerator, 010305 fluids & plasmas, Nuclear physics, CNGS, Acceleration, Physics::Plasma Physics, low [energy], 0103 physical sciences, AWAKE, Linear accelerators, ddc:530, 010306 general physics, Nuclear Experiment, Instrumentation, QC, Modulation of long plasmas [13.4], acceleration [electron], Physics, Large Hadron Collider, Plasma, stability, CERN SPS, Plasma acceleration, Accelerators and Storage Rings, Electron acceleration, Novel Acceleration Techniques (ANAC2) [13], Physics - Plasma Physics, beam [p], beam loading, Plasma Physics (physics.plasm-ph), modulation, Bunches, Physics::Accelerator Physics, Physics - Accelerator Physics, proposed experiment, Plasma wakefield, beam [laser], EuCARD2
Abstract

The Advanced Proton Driven Plasma Wakefield Acceleration Experiment (AWAKE) aims at studying plasma wakefield generation and electron acceleration driven by proton bunches. It is a proof-of-principle R&D experiment at CERN and the world's first proton driven plasma wakefield acceleration experiment. The AWAKE experiment will be installed in the former CNGS facility and uses the 400 GeV/c proton beam bunches from the SPS. The first experiments will focus on the self-modulation instability of the long (rms ~12 cm) proton bunch in the plasma. These experiments are planned for the end of 2016. Later, in 2017/2018, low energy (~15 MeV) electrons will be externally injected to sample the wakefields and be accelerated beyond 1 GeV. The main goals of the experiment will be summarized. A summary of the AWAKE design and construction status will be presented., 7 pages, 7 figures, 2 tables

Published
2016
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6. Collider design issues based on proton-driven plasma wakefield acceleration

Author

Carsten Welsch, O. Mete, S. Mandry, Matthew Wing, A. Aimidula, Guoxing Xia, and Sawpan Chattopadhyay

Subjects
Accelerator Physics (physics.acc-ph), Nuclear and High Energy Physics, CERN Lab, Proton, Physics::Instrumentation and Detectors, wake field [plasma], Tevatron, PDPWA, FOS: Physical sciences, Electron, wake field [acceleration], law.invention, Nuclear physics, Acceleration, law, Colliders, ddc:530, Nuclear Experiment, Collider, Instrumentation, Physics, design [linear accelerator], Large Hadron Collider, Plasma, Plasma acceleration, Self-modulation instability, beam [p], Dephasing, Physics::Accelerator Physics, Physics - Accelerator Physics, High Energy Physics::Experiment, linear collider [electron positron]
Abstract

Recent simulations have shown that a high-energy proton bunch can excite strong plasma wakefields and accelerate a bunch of electrons to the energy frontier in a single stage of acceleration. It therefore paves the way towards a compact future collider design using the proton beams from existing high-energy proton machines, e.g. Tevatron or the LHC. This paper addresses some key issues in designing a compact electron–positron linear collider and an electron–proton collider based on the existing CERN accelerator infrastructure.

Published
2014

7. AWAKE, a proton-driven plasma wakefield acceleration experiment at CERN

Author

Ricardo Fonseca, Lawrence Deacon, Andrei Seryi, Muhammad Kasim, V. Fedossev, L. O. Silva, J. T. Moody, E. Feldbaumer, A. Butterworth, O. Reimann, Chiara Bracco, Ans Pardons, R. Tarkeshian, F. Batsch, A. P. Sosedkin, S. Mandry, R. Jones, C. Hessler, Peter Norreys, Alexey Petrenko, K. Rieger, Nelson Lopes, H. Vincke, E. Öz, Guoxing Xia, Graeme Burt, Ligia Diana Amorim, E. Shaposhnikova, S. Chattopadhyay, Alexander Pukhov, Patric Muggli, Jorge Vieira, Malika Meddahi, Simon Jolly, Allen Caldwell, P. Sherwood, Francesco Velotti, Ulrich Dorda, Dino A. Jaroszynski, M. Martyanov, Michael Jenkins, S. Doebert, Robert Bingham, Edda Gschwendtner, R.W. Assmann, Julia Grebenyuk, B. Buttenschön, O. Mete, L. Jensen, V. A. Minakov, Wolfgang Höfle, Matthew Wing, John-Bjarne Hansen, Raoul Trines, Olaf Grulke, Brennan Goddard, Konstantin Lotov, J. Holloway, Zulfikar Najmudin, Silvia Cipiccia, Carsten Welsch, and Aguilar-Benítez, M., Fuster, J., Martí-García, S., and Santamaría, A.

Subjects
electron, Nuclear and High Energy Physics, Proton, wake field [plasma], self-modulation, 01 natural sciences, 7. Clean energy, wake field [acceleration], Ciências Naturais::Ciências Físicas [Domínio/Área Científica], Linear particle accelerator, 010305 fluids & plasmas, Nuclear physics, Acceleration, CNGS, Plasma, Wakefields, Proof-of-principle, Physics::Plasma Physics, 0103 physical sciences, AWAKE, hardware, ddc:530, Self-modulation, 010306 general physics, Nuclear Experiment, QC, Physics, Large Hadron Collider, wakefields, protons, plasma [accelerator], linear accelerator, CERN SPS, Plasma acceleration, Accelerators and Storage Rings, beam [p], proof-of-principle, Bunches, high [energy], Physics::Accelerator Physics, Protons, Beam (structure)
Abstract

The AWAKE Collaboration has been formed in order to demonstrate proton-driven plasma wakefield acceleration for the first time. This acceleration technique could lead to future colliders of high energy but of a much reduced length when compared to proposed linear accelerators. The CERN SPS proton beam in the CNGS facility will be injected into a 10 m plasma cell where the long proton bunches will be modulated into significantly shorter micro bunches. These micro-bunches will then initiate a strong wakefield in the plasma with peak fields above 1 GV/m that will be harnessed to accelerate a bunch of electrons from about 20 MeV to the GeV scale within a few meters. The experimental program is based on detailed numerical simulations of beam and plasma interactions. The main accelerator components, the experimental area and infrastructure required as well as the plasma cell and the diagnostic equipment are discussed in detail. First protons to the experiment are expected at the end of 2016 and this will be followed by an initial three-four years experimental program. The experiment will inform future larger-scale tests of proton-driven plasma wakefield acceleration and applications to high energy colliders. info:eu-repo/semantics/publishedVersion

Published
2016

8. VHEeP: A very high energy electron-proton collider based on proton-driven plasma wakefield acceleration

Author

Matthew Wing and Allen Caldwell

Subjects
Accelerator Physics (physics.acc-ph), Quark, CERN Lab, wake field [plasma], Hadron, FOS: Physical sciences, Parton, Electron, energy [beam], wake field [acceleration], VHE, hadronic [final state], High Energy Physics - Experiment, DGLAP equation, quark, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), quantum chromodynamics, ddc:530, structure, electron p, Quantum chromodynamics, Physics, Large Hadron Collider, saturation, contact interaction, HERA, Plasma acceleration, beam [electron], beam [p], DESY HERA Stor, High Energy Physics - Phenomenology, CERN LHC Coll, momentum [parton], cosmic radiation, kinematics, high [energy], Physics::Accelerator Physics, Physics - Accelerator Physics, High Energy Physics::Experiment, spectrometer
Abstract

Based on current CERN infrastructure, an electron-proton collider is proposed at a centre-of-mass energy of about 9 TeV. A 7 TeV LHC bunch is used as the proton driver to create a plasma wakefield which then accelerates electrons to 3 TeV, these then colliding with the other 7 TeV LHC proton beam. The basic parameters of the collider are presented, which although of very high energy, has integrated luminosities of the order of 1 pb$^{-1}$/year. For such a collider, with a centre-of-mass energy 30 times greater than HERA, parton momentum fractions, $x$, down to about $10^{-8}$ are accessible for $Q^2$ of 1 GeV$^2$ and could lead to effects of saturation or some other breakdown of DGLAP being observed. The total photon-proton cross section can be measured up to very high energies and also at different energies as the possibility of varying the electron beam energy is assumed; this could have synergy with cosmic-ray physics. Other physics which can be pursued at such a collider are contact interaction searches, such as quark and electron substructure, and measurements of the proton structure as well as other more conventional measurements of QCD at high energies and in a new kinematic regime. The events at very low $x$ will lead to electrons and the hadronic final state produced at very low angles and so a novel spectrometer device will be needed to measure these. First ideas of the physics programme of such a collider are given., 7 pages, 4 figures, presented at the DIS 2015 Workshop, Dallas

Published
2016

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