The `Multilayer_Sample` Component

Multilayer Reflecting sample using matrix Formula.

Identification

Site:
Author: Robert Dalgliesh
Origin: McStas 1.12b
Date: June 2010

Description

in order to get this to compile you need to link against
the gsl and gslcblas libraries.

to do this automatically edit
/usr/local/lib/mcstas/tools/perl/mcstas_config.perl

add -lgsl and -lgslcblas to the CFLAGS line

Horizontal reflecting substrate defined by SLDs,Thicknesses, roughnesses
The superphase may also be determined

Example: Multilayer_Sample(xmin=-0.1, xmax=0.1,zmin=-0.1, zmax=0.1, nlayer=1,sldPar={0.0,2.0e-6,0.0e-6},dPar={20.0}, sigmaPar={5.0,5.0})

Example: d1 500: sld1 (air) 0.0: sld2 (Si) 2.07e-6: sldf1(film Ni) 9.1e-6

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
xwidth	m	Width of substrate	0.2
zlength	m	Length of substrate	0.2
nlayer	1	Number of film layers	1
sldPar	AA^-2	Scattering length Density's of layers	{0.0,2.0e-6,0.0e-6}
dPar	AA	Thicknesses of film layers	{20.0}
sigmaPar	AA	r.m.s roughnesses of the interfaces	{5.0,5.0}
frac_inc	1	Fraction of statistics to assign to incoherent scattering	0
ythick	m	Thickness of substrate	0
mu_inc	m^-1	Incoherent scattering length	5.62
target_index	1	Used in combination with focus_xw and focus_yh to indicate solid angle for incoherent scattering.	0
focus_xw	m	Used in combination with target_index and focus_yh to indicate solid angle for incoherent scattering.	0

AT (	,	,		) RELATIVE
ROTATED (	,	,		) RELATIVE

The Multilayer_Sample Component

Identification

Description

Input parameters

Links

The `Multilayer_Sample` Component