title: A differential pumping system to deliver windowless VUV photons at atmospheric pressure.
abstract: In order to deliver VUV (vacuum ultraviolet) photons under atmospheric pressure conditions, a differential pumping system has been built on the DISCO beamline at the SOLEIL synchrotron radiation facility. The system is made of four stages and is 840 mm long. The conductance-limiting body has been designed to allow practicable optical alignment. VUV transmission of the system was tested under air, nitrogen, argon and neon, and photons could be delivered down to 60 nm (20 eV).
authors.affiliation: Synchrotron SOLEIL, L'Orme des Merisiers, Saint Aubin, Gif-sur-Yvette, France. alexandre.giuliani@synchrotron-soleil.fr
authors.forename: Alexandre
authors.initials: A
authors.lastname: Giuliani
authors.forename: Isabelle
authors.initials: I
authors.lastname: Yao
authors.forename: Bruno
authors.initials: B
authors.lastname: Lagarde
authors.forename: Solenne
authors.initials: S
authors.lastname: Rey
authors.forename: Jean Pierre
authors.initials: JP
authors.lastname: Duval
authors.forename: Patrick
authors.initials: P
authors.lastname: Rommeluere
authors.forename: Frederic
authors.initials: F
authors.lastname: Jamme
authors.forename: Valerie
authors.initials: V
authors.lastname: Rouam
authors.forename: Frank
authors.initials: F
authors.lastname: Wein
authors.forename: Carlos
authors.initials: C
authors.lastname: De Oliveira
authors.forename: Manuel
authors.initials: M
authors.lastname: Ros
authors.forename: Alain
authors.initials: A
authors.lastname: Lestrade
authors.forename: Kewin
authors.initials: K
authors.lastname: Desjardins
authors.forename: Jean Luc
authors.initials: JL
authors.lastname: Giorgetta
authors.forename: Olivier
authors.initials: O
authors.lastname: Laprevote
authors.forename: Christian
authors.initials: C
authors.lastname: Herbaux
authors.forename: Matthieu
authors.initials: M
authors.lastname: Refregiers