Cayla Jean-Noël
MOPM067
Commissioning of the RF system for the ThomX storage ring
1137
The RF system of the ThomX storage ring consists in a 500 MHz single cell copper cavity of the ELETTRA type, powered with a 50 kW CW solid state amplifier, and its associated Low-Level RF feedback and control loops. The low operating energy of 50 MeV makes the impedances of the cavity higher order modes (HOMs) particularly critical for the beam stability. Their parasitic effects on the beam can be cured by HOM frequency shifting techniques, based on a fine temperature tuning and a dedicated adjustable plunger. A cavity temperature stability of ± 0.1 °C within a range from 30 up to 70 °C is achieved by a precise control of its water-cooling temperature. On the other hand, the tuning of the cavity fundamental mode is achieved by changing its axial length by means of a mechanical tuner. This report describes the setup of the facility and the results of the commissioning.
  • M. El Khaldi, J. Cayla, F. Wicek
    Université Paris-Saclay, CNRS/IN2P3, IJCLab
  • M. Diop, R. Lopes, F. Ribeiro, J. Salvia, R. Sreedharan
    Synchrotron Soleil
Paper: MOPM067
DOI: reference for this paper: 10.18429/JACoW-IPAC2023-MOPM067
About:  Received: 31 Mar 2023 — Revised: 08 May 2023 — Accepted: 11 May 2023 — Issue date: 26 Sep 2023
Cite: reference for this paper using: BibTeX, LaTeX, Text/Word, RIS, EndNote
TUPA061
TWAC : EIC Pathfinder Open European project on Novel dielectric acceleration
1468
Particle accelerators are devices of primary importance in a large range of applications such as fundamental particle physics, nuclear physics, light sources, imaging, neutron sources, and transmutation of nuclear waste. They are also used every day for cargo inspection, medical diagnostics, and radiotherapy worldwide. Electron is the easiest particle to produce and manipulate, resulting in unequaled energy over cost ratio. However, there is an urgent and growing need to reduce the footprint of accelerators in order to lower their cost and environmental impact, from the future high-energy colliders to the portable relativistic electron source for industrial and societal applications. The radical new vision we propose will revolutionize the use of accelerators in terms of footprint, beam time delivery, and electron beam properties (stability, reproducibility, monochromaticity, femtosecond-scale bunch duration), which is today only a dream for a wide range of users. We propose developing a new structure sustaining the accelerating wave pushing up the particle energy, which will enable democratizing the access to femtosecond-scale electron bunch for ultrafast phenomena studies. This light and compact accelerator, for which we propose breaking through the current technological barriers, will open the way toward compact accelerators with an energy gain gradient of more than 100 MeV/m and enlarge time access in the medical environment (preclinical and clinical phase studies).
  • C. Bruni, A. Gonnin, G. Martinet, H. Guler, J. Cayla, K. Cassou, M. Omeich, P. Puzo, P. Gauron, S. Ben Abdillah, V. Soskov, V. Chaumat
    Université Paris-Saclay, CNRS/IN2P3, IJCLab
  • A. Lamure
    RadiaBeam
  • C. Szwaj, C. Evain, E. Roussel, S. Bielawski
    Laboratoire de Physique des Lasers, Atomes et Molécules
  • G. Almasi, G. Krizsan, J. Hebling, L. Palfalvi, S. Turnár, Z. Tibai
    University of Pecs
  • G. Tóth
    MTA-PTE High-Field Terahertz Research Group
  • M. Le Parquier
    Université des Sciences et Technologies de Lille
  • M. Amiens
    Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
  • M. Kellermeier, T. Vinatier
    Deutsches Elektronen-Synchrotron
  • M. Pittman
    Centre Laser de l'Univ. Paris-Sud
  • T. OKSENHENDLER
    iteox
Paper: TUPA061
DOI: reference for this paper: 10.18429/JACoW-IPAC2023-TUPA061
About:  Received: 05 May 2023 — Revised: 19 May 2023 — Accepted: 19 May 2023 — Issue date: 26 Sep 2023
Cite: reference for this paper using: BibTeX, LaTeX, Text/Word, RIS, EndNote
WEPL083
Transport Line for Laser-Plasma Acceleration Electron Beam
The quest of laser plasma accelerators is of great interest for various applications such as light sources or high energy physics colliders. This research has led to numerous performance improvements, particularly in terms of beam energy versus compactness [1] and ultra-short bunch length [2]. However, these performances are often reached without the achievement of sufficient beam quality, stability and reproducibility. These are the objectives of PALLAS, a test facility at IJCLab, that aims to advance laser-plasma from *acceleration* to accelerators. To this end, one of the main lines of research is the electron beam control and transport. The primary goal is to have a lattice design that allows for a fine characterization of the output beam as a function of the laser-plasma wakefield acceleration target cell and laser parameters, while paying a particular attention to preserving the quality of the beam during its transport. I will present the approach, considered for PALLAS, on the problematic of chromaticity and divergence for the transport of laser-plasma accelerated electron beams.
  • C. Guyot, D. Douillet, A. Gonnin, J. Cayla, Y. Peinaud, V. Kubytskyi, K. Cassou, C. Bruni
    Université Paris-Saclay, CNRS/IN2P3, IJCLab
  • P. Drobniak, G. Iaquaniello, G. Kane
    Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
  • B. Lucas, S. Kazamias
    Université Paris Saclay
  • D. Minenna, P. Nghiem
    Commissariat à l'Energie Atomique et aux Energies Alternatives
  • M. Pittman
    Centre Laser de l'Univ. Paris-Sud
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WEPL084
Benchmarking for CODAL beam dynamics code: laser-plasma accelerator case study
3298
Laser-plasma electron beams are known for their large divergence and energy spread while having ultra-short bunches, which differentiate them from standard RF accelerated beams. To study the laser-plasma beam dynamics and to design a transport line, simulations with *CODAL* [1], a code developed by SOLEIL in collaboration with IJCLab, have been used. *CODAL* is a 6D 'kick' tracking code based on the symplectic integration of the local hamiltonian for each element of the lattice. *CODAL* also includes collective effects simulations such as space charge, wakefield and coherent synchrotron radiation. To validate the studies in the framework of Laser-Plasma Acceleratior developpement, results from *CODAL* have been compared to *TraceWin* [2], a well-known tracking code developed by CEA. The comparison has been made using the outcome of Laser WakeField Acceleration (LWFA) particle-in-cell simulations as initial start particle coordinates from a case study of PALLAS project, a Laser-Plasma Accelerator test facility at IJCLab.
  • C. Guyot, D. Douillet, A. Gonnin, J. Cayla, Y. Peinaud, V. Kubytskyi, K. Cassou, C. Bruni
    Université Paris-Saclay, CNRS/IN2P3, IJCLab
  • D. Minenna, P. Nghiem, L. Batista
    Commissariat à l'Energie Atomique et aux Energies Alternatives
  • P. Drobniak, G. Iaquaniello, G. Kane
    Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
  • B. Lucas, S. Kazamias
    Université Paris Saclay
  • M. Pittman
    Centre Laser de l'Univ. Paris-Sud
Paper: WEPL084
DOI: reference for this paper: 10.18429/JACoW-IPAC2023-WEPL084
About:  Received: 03 May 2023 — Revised: 02 Jun 2023 — Accepted: 21 Jun 2023 — Issue date: 26 Sep 2023
Cite: reference for this paper using: BibTeX, LaTeX, Text/Word, RIS, EndNote