[ Identification | Description | Input parameters | Links ]

# The `SasView_lamellar_stack_caille` Component

SasView lamellar_stack_caille model component as sample description.

## Identification

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

## Description

    SasView_lamellar_stack_caille component, generated from lamellar_stack_caille.c in sasmodels.

    Example:
    SasView_lamellar_stack_caille(thickness, Nlayers, d_spacing, Caille_parameter, sld, 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_thickness=0.0)

## Input parameters

Parameters in boldface are required; the others are optional.

Name | Unit | Description | Default |
thickness | Ang | ([0, inf]) sheet thickness. | 30.0 |
Nlayers |  | ([1, inf]) Number of layers. | 20 |
d_spacing | Ang | ([0.0, inf]) lamellar d-spacing of Caille S(Q). | 400.0 |
Caille_parameter | 1/Ang^2 | ([0.0, 0.8]) Caille parameter. | 0.1 |
sld | 1e-6/Ang^2 | ([-inf, inf]) layer scattering length density. | 6.3 |
sld_solvent | 1e-6/Ang^2 | ([-inf, inf]) Solvent scattering length density. | 1.0 |
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_thickness |  | (0,inf) defined as (dx/x), where x is de mean value and dx the standard devition of the variable | 0.0 |

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

## Links

- Source code for `SasView_lamellar_stack_caille.comp`.

[ Identification | Description | Input parameters | Links ]