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McStas: SasView_adsorbed_layer

[ Identification | Description | Input parameters | Links ]

The SasView_adsorbed_layer Component

SasView adsorbed_layer model component as sample description.

Identification

  • Site:
  • Author: Jose Robledo
  • Origin: FZJ / DTU / ESS DMSC
  • Date:

Description

SasView_adsorbed_layer component, generated from adsorbed_layer.c in sasmodels.

Example:
SasView_adsorbed_layer(second_moment, adsorbed_amount, density_shell, radius, volfraction, sld_shell, sld_solvent,
model_scale=1.0, model_abs=0.0, xwidth=0.01, yheight=0.01, zdepth=0.005, R=0,
int target_index=1, target_x=0, target_y=0, target_z=1,
focus_xw=0.5, focus_yh=0.5, focus_aw=0, focus_ah=0, focus_r=0,
pd_radius=0.0)

Input parameters

Parameters in boldface are required; the others are optional.
NameUnitDescriptionDefault
second_momentAng([0.0, inf]) Second moment of polymer distribution.23.0
adsorbed_amountmg/m^2([0.0, inf]) Adsorbed amount of polymer.1.9
density_shellg/cm^3([0.0, inf]) Bulk density of polymer in the shell.0.7
radiusAng([0.0, inf]) Core particle radius.500.0
volfractionNone([0.0, inf]) Core particle volume fraction.0.14
sld_shell1e-6/Ang^2([-inf, inf]) Polymer shell SLD.1.5
sld_solvent1e-6/Ang^2([-inf, inf]) Solvent SLD.6.3
model_scale Global scale factor for scattering kernel. For systems without inter-particle interference, the form factors can be related to the scattering intensity by the particle volume fraction.1.0
model_abs Absorption cross section density at 2200 m/s.0.0
xwidthm([-inf, inf]) Horiz. dimension of sample, as a width.0.01
yheightm([-inf, inf]) vert . dimension of sample, as a height for cylinder/box0.01
zdepthm([-inf, inf]) depth of sample0.005
RmOuter radius of sample in (x,z) plane for cylinder/sphere.0
target_xmrelative focus target position.0
target_ymrelative focus target position.0
target_zmrelative focus target position.1
target_index Relative index of component to focus at, e.g. next is +1.1
focus_xwmhoriz. dimension of a rectangular area.0.5
focus_yhm, vert. dimension of a rectangular area.0.5
focus_awdeg, horiz. angular dimension of a rectangular area.0
focus_ahdeg, vert. angular dimension of a rectangular area.0
focus_rmcase of circular focusing, focusing radius.0
pd_radius(0,inf) defined as (dx/x), where x is de mean value and dx the standard devition of the variable0.0
AT ( , , ) RELATIVE
ROTATED ( , , ) RELATIVE

Links


[ Identification | Description | Input parameters | Links ]

Generated on 2023-09-19 20:01:36


Last Modified: Tuesday, 16-Apr-2024 20:05:21 CEST
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