Design and performance of BOREAS, the beamline for resonant X-ray absorption and scattering experiments at the ALBA synchrotron light source

作者：Alessandro Barla, Josep Nicolás, Daniele Cocco, Secundino Manuel Valvidares, Javier Herrero‐Martín, Pierluigi Gargiani, Jairo Moldes, Claude Ruget, E. Pellegrin, S. Ferrer · 发表于：Journal of Synchrotron Radiation · 年份：2016 · DOI：10.1107/s1600577516013461 · 被引用次数：174 · 研究领域：Advanced X-ray Imaging Techniques、X-ray Spectroscopy and Fluorescence Analysis、Crystallography and Radiation Phenomena

The optical design of the BOREAS beamline operating at the ALBA synchrotron radiation facility is described. BOREAS is dedicated to resonant X-ray absorption and scattering experiments using soft X-rays, in an unusually extended photon energy range from 80 to above 4000 eV, and with full polarization control. Its optical scheme includes a fixed-included-angle, variable-line-spacing grating monochromator and a pair of refocusing mirrors, equipped with benders, in a Kirkpatrick-Baez arrangement. It is equipped with two end-stations, one for X-ray magnetic circular dichroism and the other for resonant magnetic scattering. The commissioning results show that the expected beamline performance is achieved both in terms of energy resolution and of photon flux at the sample position.