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[ Identification | Description | Input parameters | Links ]
The SasView_star_polymer Component
SasView star_polymer model component as sample description.
Identification
- Site:
- Author: Jose Robledo
- Origin: FZJ / DTU / ESS DMSC
- Date:
Description
SasView_star_polymer component, generated from star_polymer.c in sasmodels. Example: SasView_star_polymer(rg_squared, arms, 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_rg_squared=0.0)
Input parameters
Parameters in boldface are required; the others are optional.| Name | Unit | Description | Default | |
| rg_squared | Ang^2 | ([0.0, inf]) Ensemble radius of gyration SQUARED of the full polymer. | 100.0 | |
| arms | ([1.0, 6.0]) Number of arms in the model. | 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 | ||
| 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_rg_squared | (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_star_polymer.comp.
[ Identification | Description | Input parameters | Links ]
Generated on mcxtrace 3.5.32
