SB7: the new bending-magnet double-headed dragon beamline at SuperACO.
A new beamline is now operational at LURE on bending-magnet 7 of the SuperACO storage ring in Orsay. The monochromator is of the ;dragon' type, designed to work in the energy range 150-1500 eV, and is equipped with a double vertical focusing mirror in order to allow for fast switching of light polarization. In this paper the results of photoion-yield experiments performed on N(2), Ar and Ne gases are presented. The observed resonance structures enable us to determine the available energy resolution: a resolving power higher than 8500 is obtained at the Ar 2p, N 1s and Ne K-edges when using all the optical elements at full aperture. The total flux as a function of the measured photon energy resolution and the characterization of the double-head behaviour in delivering circularly polarized light are reported.
Sirotti
F
F
Laboratoire pour l'Utilisation du Rayonnement Electromagnetique, CNRS, CEA, MESR, BP34, F-91485 Orsay, France. sirotti@lure.u-psud.fr
Polack
F
F
Cantin
J L
JL
Sacchi
M
M
Delaunay
R
R
Meyer
M
M
Liberati
M
M