Design and performance of BOREAS, the beamline for resonant X‐ray absorption and scattering experiments at the ALBA synchrotron light source. (7th October 2016)

• Record Type: Journal Article
• Authors: Barla, Alessandro; Nicolás, Josep; Cocco, Daniele; Valvidares, Secundino Manuel; Herrero-Martín, Javier; Gargiani, Pierluigi; Moldes, Jairo; Ruget, Claude; Pellegrin, Eric; Ferrer, Salvador
• Is Part Of: Journal of synchrotron radiation. Volume 23:Part 6(2016)
• Page Start: 1507
• Page End: 1517
• Publication Date: 2016-10-07
• Subjects: soft X‐ray beamlines -- X‐ray magnetic circular dichroism -- grating monochromator; Synchrotron radiation -- Periodicals; Free electron lasers -- Periodicals; 539.73505
• DOI: 10.1107/S1600577516013461
• Languages: English
• ISSNs: 0909-0495

Abstract

Abstract : BOREAS is a beamline operating at the ALBA Synchrotron Light Source, dedicated to resonant X‐ray absorption and scattering experiments using soft X‐rays, in an unusually extended photon energy range from 80 to >4000 eV, with full polarization control. Here its optical scheme and the first commissioning results are described. Abstract : 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.