[ Identification | Description | Input parameters | Links ]
Monochromator_flat ComponentFlat, infinitely thin mosaic crystal, useful as a monochromator or analyzer. For an unrotated monochromator component, the crystal surface lies in the Y-Z plane (ie. parallel to the beam). The mosaic is anisotropic gaussian, with different FWHMs in the Y and Z directions. The scattering vector is perpendicular to the surface. Example: Monochromator_flat(zmin=-0.1, zmax=0.1, ymin=-0.1, ymax=0.1, mosaich=30.0, mosaicv=30.0, r0=0.7, Q=1.8734) Monochromator lattice parameter PG 002 DM=3.355 AA (Highly Oriented Pyrolythic Graphite) PG 004 DM=1.677 AA Heusler 111 DM=3.362 AA (Cu2MnAl) CoFe DM=1.771 AA (Co0.92Fe0.08) Ge 111 DM=3.266 AA Ge 311 DM=1.714 AA Ge 511 DM=1.089 AA Ge 533 DM=0.863 AA Si 111 DM=3.135 AA Cu 111 DM=2.087 AA Cu 002 DM=1.807 AA Cu 220 DM=1.278 AA Cu 111 DM=2.095 AA
| Name | Unit | Description | Default | |
| zmin | m | Lower horizontal (z) bound of crystal | -0.05 | |
| zmax | m | Upper horizontal (z) bound of crystal | 0.05 | |
| ymin | m | Lower vertical (y) bound of crystal | -0.05 | |
| ymax | m | Upper vertical (y) bound of crystal | 0.05 | |
| zwidth | m | Width of crystal, instead of zmin and zmax | 0 | |
| yheight | m | Height of crystal, instead of ymin and ymax | 0 | |
| mosaich | arc minutes | Horizontal mosaic (in z direction) (FWHM) | 30.0 | |
| mosaicv | arc minutes | Vertical mosaic (in y direction) (FWHM) | 30.0 | |
| r0 | 1 | Maximum reflectivity | 0.7 | |
| Q | 1/angstrom | Magnitude of scattering vector | 1.8734 | |
| DM | AA | monochromator d-spacing, instead of Q = 2*pi/DM | 0 |
| AT ( | , | , | ) RELATIVE | |||
|---|---|---|---|---|---|---|
| ROTATED ( | , | , | ) RELATIVE |
Monochromator_flat.comp.
[ Identification | Description | Input parameters | Links ]
Generated on 2023-09-19 20:01:36