[ Identification | Description | Input parameters | Links ]
SANS_Liposomes_Abs ComponentSample 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)
| Name | Unit | Description | Default | |
| R | AA | Radius of scattering hard spheres | 100 | |
| dR | 0.0 | |||
| Phi | 1 | Particle volume fraction | 1e-3 | |
| Delta_rho | fm/AA^3 | Excess scattering length density | 0.6 | |
| sigma_a | m^-1 | Absorption cross section density at 2200 m/s | 0.50 | |
| qmax | AA-1 | Maximum scattering vector (typically 10/R to observe the 3rd ring) | 0.03 | |
| xwidth | m | horiz. dimension of sample, as a width | 0.01 | |
| yheight | m | vert.. dimension of sample, as a height | 0.01 | |
| zthick | m | thickness of sample | 0.001 | |
| dbilayer | 35 |
| AT ( | , | , | ) RELATIVE | |||
|---|---|---|---|---|---|---|
| ROTATED ( | , | , | ) RELATIVE |
SANS_Liposomes_Abs.comp.
[ Identification | Description | Input parameters | Links ]
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