IBIC2014 - List of Authors (Hubert, N.)

Paper	Title	Page
WEPD21	BPM Data Correction at SOLEIL	684
	N. Hubert, B. Béranger, L.S. Nadolski SOLEIL, Gif-sur-Yvette, France
	In a synchrotron light source like SOLEIL, Beam Position Monitors (BPM) are optimized to have the highest sensitivity for an electron beam passing nearby their mechanical center. Nevertheless, this optimization is done to the detriment of the response linearity when the beam is off-centered for dedicated machine physic studies. To correct the geometric non linearity of the BPM, we have applied an algorithm based on a boundary element method. Moreover the BPM electronics is able to provide position data at a turn by turn rate. Unfortunately the filtering process in this electronics mixes the information from one turn to the neighboring turns. An additional demixing algorithm has been set-up to correct this artefact. The paper reports on performances and limitations of those two algorithms that are used at SOLEIL to correct the BPM data.
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WEPD22	Design of a New Blade-Type XBPM	687
	N. Hubert, N. Béchu, L. Cassinari, J. Da Silva Castro, J.-C. Denard, M. Labat, J.L. Marlats, A. Mary SOLEIL, Gif-sur-Yvette, France S.R. Marques, R.T. Neuenschwander LNLS, Campinas, Brazil
	A new photon Beam Position Monitor (X-BPM) design has been developed in collaboration between the Brazilian Synchrotron Light Laboratory (LNLS) and SOLEIL Synchrotron. This blade-type X-BPM has been carefully studied in order to minimize beam current dependence and temperature dependence. The main advantages of the design are a good stability than the standard X-BPMs initially installed at SOLEIL. This new design is used for the new X-BPMs installed at SOLEIL and is being considered for the bending magnet front-ends of the future SIRIUS light source. A first “double” unit has been constructed by LNLS for the two canted Anatomix and Nanoscopium SOLEIL beamlines, and has been installed at SOLEIL in May 2014. Design and first results are presented.
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Paper

Title

Page

BPM Data Correction at SOLEIL

684

N. Hubert, B. Béranger, L.S. Nadolski
SOLEIL, Gif-sur-Yvette, France

In a synchrotron light source like SOLEIL, Beam Position Monitors (BPM) are optimized to have the highest sensitivity for an electron beam passing nearby their mechanical center. Nevertheless, this optimization is done to the detriment of the response linearity when the beam is off-centered for dedicated machine physic studies. To correct the geometric non linearity of the BPM, we have applied an algorithm based on a boundary element method. Moreover the BPM electronics is able to provide position data at a turn by turn rate. Unfortunately the filtering process in this electronics mixes the information from one turn to the neighboring turns. An additional demixing algorithm has been set-up to correct this artefact. The paper reports on performances and limitations of those two algorithms that are used at SOLEIL to correct the BPM data.

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reference for this paper to ※ LaTeX, ※ Text, ※ IS/RefMan, ※ EndNote (xml)

WEPD22

Design of a New Blade-Type XBPM

687

N. Hubert, N. Béchu, L. Cassinari, J. Da Silva Castro, J.-C. Denard, M. Labat, J.L. Marlats, A. Mary
SOLEIL, Gif-sur-Yvette, France
S.R. Marques, R.T. Neuenschwander
LNLS, Campinas, Brazil

A new photon Beam Position Monitor (X-BPM) design has been developed in collaboration between the Brazilian Synchrotron Light Laboratory (LNLS) and SOLEIL Synchrotron. This blade-type X-BPM has been carefully studied in order to minimize beam current dependence and temperature dependence. The main advantages of the design are a good stability than the standard X-BPMs initially installed at SOLEIL. This new design is used for the new X-BPMs installed at SOLEIL and is being considered for the bending magnet front-ends of the future SIRIUS light source. A first “double” unit has been constructed by LNLS for the two canted Anatomix and Nanoscopium SOLEIL beamlines, and has been installed at SOLEIL in May 2014. Design and first results are presented.

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reference for this paper to ※ LaTeX, ※ Text, ※ IS/RefMan, ※ EndNote (xml)