[ Identification | Description | Input parameters | Links ]

The SANS_Liposomes_Abs Component

Solid dilute monodisperse spheres sample with transmitted beam for Small Angle Neutron Scattering.

Identification

• Site:
• Author: Wim Bouwman, Delft University of Technology
• Origin:
• Date: Aug 2012

Description

Sample for Small Angle Neutron Scattering.
Modified from the Any Sample model.
Normalization of scattering is done in INITIALIZE.
Some elements of Sans_spheres have been re-used

Some remarks:
Scattering function should be a defined the same way in INITIALIZE and TRACE sections
There exist maybe better library functions for the integral.

Transmitted paths set to 50% of all paths to be optimised for SESANS. In this simulation method paths are
well distributed among transmission and scattering (equally in Q-space).

Sample components leave the units of flux for the probability
of the individual paths. That is more consitent than the
Sans_spheres routine. Furthermore one can simulate the
transmitted beam. This allows to determine the needed size of
the beam stop. Absorption is included to
these sample-components.

Example: SANS_Spheres_Abs(R=100, Phi=1e-3, Delta_rho=0.6, sigma_a = 50, qmax=0.03, xwidth=0.01, yheight=0.01, zthick=0.001)

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
R			100
dR			0.0
Phi			1e-3
Delta_rho			0.6
sigma_a		Absorption cross section density at 2200 m/s (m^-1)	0.50
qmax			0.03
xwidth			0.01
yheight			0.01
zthick			0.001
dbilayer			35

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

Links

• Source code for SANS_Liposomes_Abs.comp.
• Sans_spheres component
• SANS_AnySamp component

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[ Identification | Description | Input parameters | Links ]

Generated on mcstas 3.5.24

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Last Modified: Monday, 07-Apr-2025 07:02:08 CEST