XAFS and surface diffraction, Materials Science Beamline 811 at MAX-lab.
Author: Erik B Knudsen (email@example.com)
Origin: DTU Physics
Date: Jan 23, 2011
Fed by a wiggler, this beamline operates in monochromatic mode with an
operational energy tunable between 2.3 – 20 keV (0.6 - 5.3 AA).
The wavelength is chosen by a double monochromator crystal setup where either
Si 111 or Si 311 may be chosen. Furthermore a double mirror
setup may be used to to focus the beam onto a sample. The rotation of the
first mirror defines the position of the second which is computed automatically.
If mirrors are in the monochromators are automatically reposistioned to
accomadate the deflected beam.
Example: mxrun Max2_811.instr M1=1 M2=1 M1_pitch=1 M2_pitch=1 theta=14.221
Parameters in boldface are required;
the others are optional.
energy range of radiation emitted from wiggler.
horizaontal and vertical opening of primary slits.
Radius of curvature of mirror 1.
Central glancing angle of mirror 1.
Radius of curvature of mirror 2.
Central glancing angle of mirror 2.
Scattering angle of monochromators
angle at which to put the surface diffraction detector