Feature #1030
Envelope task #1438: === Physics ===
SLD, specular and particle density
| Status: | Rejected | Start date: | 07 Apr 2015 | |
|---|---|---|---|---|
| Priority: | Normal | Due date: | ||
| Assignee: | - | % Done: | 0% | |
| Category: | - | |||
| Target version: | - |
Description
Particle density does not seem to be taken into account when calculating R/T parameters.
Simple example is a 2D lattice of relatively dense particles (e.g. lattice parameter 2*radius) in an air layer. Specular reflectivity if this situation is calculated equal to the pure substrate, although the layer SLD is 30%-40% of the particle SLD. It's not possible to circumvent this by just setting the layer sld to the actual density, as this decreases the contrast for the in-plane structure factor.
Expected behavior: The particle density is calculated and the SLD for the R/T calculation is the particle SLD * particle density + layer SLD * (1-particle density)
History
#1 Updated by herck about 5 years ago
- Status changed from New to Backlog
#2 Updated by herck about 5 years ago
- Tracker changed from Bug to Feature
#3 Updated by wuttke about 4 years ago
- Parent task set to #1438
#4 Updated by pospelov almost 3 years ago
- Status changed from Backlog to Rejected
Rejected, see #1823