[ Identification | Description | Input parameters | Links ]

The SasView_polymer_micelle Component

SasView polymer_micelle model component as sample description.

Identification

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

Description

SasView_polymer_micelle component, generated from polymer_micelle.c in sasmodels.

Example:
SasView_polymer_micelle(ndensity, v_core, v_corona, sld_solvent, sld_core, sld_corona, radius_core, rg, d_penetration, n_aggreg,
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_core=0.0, pd_rg=0.0)

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
ndensity	1e15/cm^3	([0.0, inf]) Number density of micelles.	8.94
v_core	Ang^3	([0.0, inf]) Core volume .	62624.0
v_corona	Ang^3	([0.0, inf]) Corona volume.	61940.0
sld_solvent	1e-6/Ang^2	([0.0, inf]) Solvent scattering length density.	6.4
sld_core	1e-6/Ang^2	([0.0, inf]) Core scattering length density.	0.34
sld_corona	1e-6/Ang^2	([0.0, inf]) Corona scattering length density.	0.8
radius_core	Ang	([0.0, inf]) Radius of core ( must be >> rg ).	45.0
rg	Ang	([0.0, inf]) Radius of gyration of chains in corona.	20.0
d_penetration		([-inf, inf]) Factor to mimic non-penetration of Gaussian chains.	1.0
n_aggreg		([-inf, inf]) Aggregation number of the micelle.	6.0
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
xwidth	m	([-inf, inf]) Horiz. dimension of sample, as a width.	0.01
yheight	m	([-inf, inf]) vert . dimension of sample, as a height for cylinder/box	0.01
zdepth	m	([-inf, inf]) depth of sample	0.005
R	m	Outer radius of sample in (x,z) plane for cylinder/sphere.	0
target_x	m	relative focus target position.	0
target_y	m	relative focus target position.	0
target_z	m	relative focus target position.	1
target_index		Relative index of component to focus at, e.g. next is +1.	1
focus_xw	m	horiz. dimension of a rectangular area.	0.5
focus_yh	m	, vert. dimension of a rectangular area.	0.5
focus_aw	deg	, horiz. angular dimension of a rectangular area.	0
focus_ah	deg	, vert. angular dimension of a rectangular area.	0
focus_r	m	case of circular focusing, focusing radius.	0
pd_radius_core		(0,inf) defined as (dx/x), where x is de mean value and dx the standard devition of the variable.	0.0
pd_rg		(0,inf) defined as (dx/x), where x is de mean value and dx the standard devition of the variable	0.0

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

Links

• Source code for SasView_polymer_micelle.comp.

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[ Identification | Description | Input parameters | Links ]

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

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Last Modified: Tuesday, 17-Sep-2024 05:31:14 CEST