Author: Hubert, N.
Paper Title Page
MOPP03 SOLEIL Upgrade Project and Foreseen Beam Instrumentation 26
 
  • N. Hubert, A. Bence, R. Broucquart, M. El Ajjouri, M. Labat, D. Pédeau, J.P. Ricaud
    SOLEIL, Gif-sur-Yvette, France
 
  SOLEIL Synchrotron has an upgrade plan to replace its storage ring by a new one based on multi-bend (7/4BA) achromat lattice. The Conceptual Design Report (CDR) has been published recently and the Technical Design Report (TDR) phase should be finished for the end of 2023. For the beam instrumentation, most of the equipment will have to be replaced, to overcome cases of electronics obsolescence and to fulfil the new tight requirements. Among them, the most challenging ones are the micron resolution transverse beam size measurement, the beam position monitoring and the stability feedbacks. The present machine will be used to validate some prototypes and it is planned to upgrade part of the diagnostics ahead of the dark period to speed-up the commissioning of the new storage ring. This paper will present the diagnostics systems that are foreseen for the SOLEIL upgrade project.  
poster icon Poster MOPP03 [1.208 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2021-MOPP03  
About • paper received ※ 07 September 2021       paper accepted ※ 17 September 2021       issue date ※ 26 October 2021  
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MOPP31 Preliminary Studies for the SOLEIL Upgrade BPM 128
 
  • M. El Ajjouri, F. Alves, A. Gamelin, N. Hubert
    SOLEIL, Gif-sur-Yvette, France
 
  Synchrotron SOLEIL is preparing a machine upgrade based on multibend achromat lattice with a drastically reduced horizontal electron beam emittance (<100 pmrad). Foreseen quadrupole and sextupole strengths will impose a small vacuum chamber diameter and the future Beam Position Monitors (BPM) will have a 16 mm inner diameter (circular shape). To minimize the BPM contribution to the longitudinal impedance, and induced heating on their mechanics, the feedthrough and button shapes must be optimized. This paper summarizes the systematic electromagnetic simulations that have been carried on in order to distinguish the effect of single dimension changes (such as button thickness and shape, ceramic thickness and diameter) on the amplitudes and frequency position of the resonances. It also introduces the preliminary BPM design for the SOLEIL upgrade project.  
poster icon Poster MOPP31 [1.665 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2021-MOPP31  
About • paper received ※ 08 September 2021       paper accepted ※ 17 September 2021       issue date ※ 27 October 2021  
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TUPP17 Fast Measurements of the Electron Beam Transverse Size and Position on SOLEIL Storage Ring 235
 
  • M. Labat, A. Bence, N. Hubert, D. Pédeau
    SOLEIL, Gif-sur-Yvette, France
  • E. Bründermann, M. Caselle, A. Ebersoldt, M.M. Patil
    KIT, Karlsruhe, Germany
 
  On SOLEIL storage ring, three beamlines are dedicated to electron beam diagnostics: two in the X-ray range and one in the visible range. The visible range beamline uses the synchrotron radiation which is emitted in one of the ring dipoles and further extracted by a slotted mirror operated in surf-mode (surfing on the upper part of the synchrotron layer). The radiation in the visible range is then transported towards a diagnostic hutch in the experimental hall, allowing electron beam imaging at the source point onto a standard CCD camera. In the perspective of prototyping works for the eventually forthcoming upgrade of SOLEIL, and for the on-going commissioning of a new Multipole Injection Kicker (MIK), we recently installed in this hutch two new branches ended by two new cameras (a KALYPSO system and a standard CMOS camera). We report in this paper the optimization we performed on the mirror mode of operation, as well as on spectral filtering, polarization selection, image plane location, fast acquisition tools, to improve the resolution and increase the speed of our initial transverse beam size measurement at source point.  
poster icon Poster TUPP17 [1.127 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2021-TUPP17  
About • paper received ※ 07 September 2021       paper accepted ※ 24 October 2021       issue date ※ 12 November 2021  
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