title: XAFS experiments at beamline I811, MAX-lab synchrotron source, Sweden.
abstract: A description of a new facility for X-ray absorption spectroscopy at the materials science beamline, I811, at MAX-lab synchrotron source, Lund, Sweden, is given. The beamline is based on a superconducting multipole wiggler source inserted in a straight section of the 1.5 GeV MAX-II ring. X-rays in the energy range 2.4-12 keV are extracted by a standard optical scheme consisting of a vertical collimating first mirror, double-crystal monochromator, and a second vertically focusing mirror. The second monochromator crystal provides sagittal focusing. The total flux impinging on the sample at 9 keV is 5 x 10(11) photons s(-1), for a minimum beam spot of 0.5 mm x 0.5 mm. The beamline has facilities for experiments in transmission, fluorescence and total-electron-yield mode and experiments have been performed by international research groups on a wide range of materials, such as dilute systems with metal concentrations below 10 p.p.m.
authors.affiliation: MAX-lab, Lund University, PO Box 118, SE-22100 Lund, Sweden. stefan.carlson@maxlab.lu.se
authors.forename: Stefan
authors.initials: S
authors.lastname: Carlson
authors.forename: Maria
authors.initials: M
authors.lastname: Clausén
authors.forename: Lidia
authors.initials: L
authors.lastname: Gridneva
authors.forename: Bengt
authors.initials: B
authors.lastname: Sommarin
authors.forename: Christer
authors.initials: C
authors.lastname: Svensson
mesh_terms: D004867:Equipment Design; D017785:Photons; D012107:Research Design; D013050:Spectrometry, Fluorescence; D013052:Spectrometry, X-Ray Emission / Q000379:methods*; D013499:Surface Properties; D013548:Sweden; D017356:Synchrotrons; D014965:X-Rays