Open AccessXAFS experiments at beamline I811, MAX‐lab synchrotron source, Sweden
Author(s) -
Carlson Stefan,
Clausén Maria,
Gridneva Lidia,
Sommarin Bengt,
Svensson Christer
Publication year - 2006
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049506025611
Subject(s) - beamline , monochromator , wiggler , optics , synchrotron , physics , high energy x rays , collimated light , beam (structure) , nuclear physics , cathode ray , electron , laser , wavelength
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 × 10 11 photons s −1 , for a minimum beam spot of 0.5 mm × 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.