title: The LUCIA beamline at SOLEIL.
abstract: Commissioned in May 2004 on the SLS machine, the LUCIA beamline was moved to the synchrotron SOLEIL during the summer of 2008. To take advantage of this new setting several changes to its design were introduced. Here, a review of the various improvements of the mechanics and, mostly, of the optics is given. Described in detail are the results of a new multilayer grating monochromator implemented on the Kohzu vessel already holding the two-crystal set-up. It consists of a grating grooved onto a multilayer (replacing the first crystal) associated to a multilayer (as a second crystal). It allows a shift of the low-energy limit of the beamline to around 500 eV with an energy resolution and a photon flux comparable with those of the previous couples of crystals (KTP and beryl).
authors.affiliation: Synchrotron SOLEIL, l'Orme des Merisiers, BP 48, 91192 Gif-sur-Yvette, France.
authors.forename: D
authors.initials: D
authors.lastname: Vantelon
authors.affiliation: Synchrotron SOLEIL, l'Orme des Merisiers, BP 48, 91192 Gif-sur-Yvette, France.
authors.forename: N
authors.initials: N
authors.lastname: Trcera
authors.affiliation: Synchrotron SOLEIL, l'Orme des Merisiers, BP 48, 91192 Gif-sur-Yvette, France.
authors.forename: D
authors.initials: D
authors.lastname: Roy
authors.affiliation: Synchrotron SOLEIL, l'Orme des Merisiers, BP 48, 91192 Gif-sur-Yvette, France.
authors.forename: T
authors.initials: T
authors.lastname: Moreno
authors.affiliation: LPN-CNRS, Route de Nozay, 91460 Marcoussis, France.
authors.forename: D
authors.initials: D
authors.lastname: Mailly
authors.affiliation: LPN-CNRS, Route de Nozay, 91460 Marcoussis, France.
authors.forename: S
authors.initials: S
authors.lastname: Guilet
authors.affiliation: Institut d'Optique, 2 avenue Augustin Fresnel, 91127 Palaiseau Cedex, France.
authors.forename: E
authors.initials: E
authors.lastname: Metchalkov
authors.affiliation: Institut d'Optique, 2 avenue Augustin Fresnel, 91127 Palaiseau Cedex, France.
authors.forename: F
authors.initials: F
authors.lastname: Delmotte
authors.affiliation: Synchrotron SOLEIL, l'Orme des Merisiers, BP 48, 91192 Gif-sur-Yvette, France.
authors.forename: B
authors.initials: B
authors.lastname: Lassalle
authors.affiliation: Synchrotron SOLEIL, l'Orme des Merisiers, BP 48, 91192 Gif-sur-Yvette, France.
authors.forename: Pierre
authors.initials: P
authors.lastname: Lagarde
authors.affiliation: Synchrotron SOLEIL, l'Orme des Merisiers, BP 48, 91192 Gif-sur-Yvette, France.
authors.forename: A-M
authors.initials: AM
authors.lastname: Flank
keywords: X-ray spectrocopy beamline; microspectroscopy; multilayer grating monochromator