[ Identification | Description | Input parameters | Output parameters | Links ]

The Mosaic_anisotropic component

Mosaic crystal with anisotropic mosaic.

Identification

• Author: Kristian Nielsen
• Origin: McStas release
• Date: 1999
• Version: 1.7

Description

Flat, 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.

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
zmin	m	Lower z-bound of crystal
zmax	m	Upper z-bound of crystal
ymin	m	Lower y-bound of crystal
ymax	m	Upper y-bound of crystal
mosaich	arc minutes	Horisontal mosaic (in Z direction) (FWHM)
mosaicv	arc minutes	Vertical mosaic (in Y direction) (FWHM)
r0	1	Maximum reflectivity
Q	AA-1	Magnitude of scattering vector

Output parameters

Name	Unit	Description	Default
X
W
mos_rms_y
mos_rms_z
mos_rms_max

Links

• Source code for Mosaic_anisotropic.comp.

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[ Identification | Description | Input parameters | Output parameters | Links ]

Generated automatically by McDoc, Kristian Nielsen <kristian.nielsen@risoe.dk> / Jan 22 2001

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Last Modified: Tuesday, 22-Jun-2004 14:04:09 CEST