IBIC2021 - List of Authors (El Ajjouri, M.)

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 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
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

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 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
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

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 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

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

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 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

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)