Marco Di Giacomo (Grand Accélérateur Nat. d'Ions Lourds)
TUXA005
SPIRAL2 operations and future plans
284
GANIL (Grand Accélérateur National d'Ions Lourds) started the operation of the SPIRAL2 superconducting linac in 2022. Experiments in the Neutron For Science (NFS) room, specific beam dynamics studies and different technical improvements are carried out during its operation in the second half of each year, after the run of the cyclotrons in the first half of the year. Up to now, accelerated particles are mainly D+ and 4He2+ beams with energies between 7 and 20 MeV/A. First linac tunings with 18𝑂6+ and 40𝐴𝑟14+ ion beams at energies between 7 and 14.5 MeV/A were also carried out to prepare the Super Separator Spectrometer (𝑆3) experimental area commissioning. The paper presents a summary of the beam time distribution during the second year of operation, preliminary results of specific studies on cavity failure recovery and on pressure variation in the warm linac sections induced by beam losses.
  • A. Orduz, G. Normand, J. Lagniel, M. Di Giacomo
    Grand Accélérateur Nat. d'Ions Lourds
  • A. Plaçais, A. Leduc, F. Bouly
    Laboratoire de Physique Subatomique et de Cosmologie
Slides: TUXA005
Paper: TUXA005
DOI: reference for this paper: 10.18429/JACoW-LINAC2024-TUXA005
About:  Received: 20 Aug 2024 — Revised: 28 Aug 2024 — Accepted: 29 Aug 2024 — Issue date: 23 Oct 2024
Cite: reference for this paper using: BibTeX, LaTeX, Text/Word, RIS, EndNote
TUPB025
Phase setting issues for the SPIRAL2 LINAC
383
The SPIRAL2 superconducting LINAC accelerates beams of different species, in a large energy range. During operation, the beam requested by the physics can change quite often and it is mandatory that beams that have been already tuned can be obtained again by simple application of the machine parameters already used. This reduces the accelerator retuning time and increases the machine availability for the physics experiences. Voltages and more particularly phases of all the cavities are among the crucial parameters for a quick retuning. Proper beam tuning is monitored via the Beam Position Monitors. This paper focuses on the phase issues, reminds the way the reference frequency distribution, the LLRF and the BPM works and are used in the tuning procedures, and summarizes the upgrade foreseen to improve the cavity phase setting reliability
  • M. Di Giacomo, A. Orduz, C. Jamet, J. Leyge, P. Salou
    Grand Accélérateur Nat. d'Ions Lourds
Paper: TUPB025
DOI: reference for this paper: 10.18429/JACoW-LINAC2024-TUPB025
About:  Received: 20 Aug 2024 — Revised: 04 Sep 2024 — Accepted: 11 Sep 2024 — Issue date: 23 Oct 2024
Cite: reference for this paper using: BibTeX, LaTeX, Text/Word, RIS, EndNote
TUPB073
Fast chopper line for DONES
476
The International Fusion Materials Irradiation Facility – DEMO-Oriented Neutron Early Source (IFMIF-DONES) will provide a deuteron beam of unprecedented intensity for irradiation and characterization of materials to be used in fusion reactors. In recent years, the possibility to use a small fraction of this beam for other applications in parasitic mode was discussed. This not only has the potential to enlarge the user community without perturbing the main operation, but also allows characterization measurements for beam quality management purposes. Considering various requirements and constraints, the most promising option for the extraction towards such a parasitic line involves the use of a meander-line travelling-pulse beam deflector at the start of the High Energy Beam Transfer (HEBT) line. This paper describes preliminary studies aiming at a first definition of the structure, materials and geometrical parameters of the meander-line deflector.
  • M. D'Andrea, A. Pisent, A. Palmieri, F. Grespan, L. Bellan, L. Ferrari
    Istituto Nazionale di Fisica Nucleare
  • M. Di Giacomo
    Grand Accélérateur Nat. d'Ions Lourds
Paper: TUPB073
DOI: reference for this paper: 10.18429/JACoW-LINAC2024-TUPB073
About:  Received: 20 Aug 2024 — Revised: 27 Aug 2024 — Accepted: 27 Aug 2024 — Issue date: 23 Oct 2024
Cite: reference for this paper using: BibTeX, LaTeX, Text/Word, RIS, EndNote