| Guinier |
Definition
This model fits the Guinier function
$$ I(q) = \text{scale} \cdot \exp{\left[ \frac{-Q^2 R_g^2 }{3} \right]} + \text{background}
$$
to the data directly without any need for l... |
Shape-Independent |
07 Sep 2017 |
sasview |
0 |
|
| Surface Fractal |
This model calculates the scattering from fractal-like aggregates based on the Mildner reference.
Definition
The scattering intensity $I(q)$ is calculated as
$$ \begin{align*} I(q) = \... |
Shape-Independent |
07 Sep 2017 |
sasview |
0 |
|
| Star Polymer |
Definition
Calcuates the scattering from a simple star polymer with f equal Gaussian coil arms. A star being defined as a branched polymer with all the branches emanating from a common centra... |
Shape-Independent |
07 Sep 2017 |
sasview |
0 |
|
| Two Lorentzian |
Definition
The scattering intensity $I(q)$ is calculated as
$$ I(q) = \frac{A}{1 +(Q\xi_1)^n} + \frac{C}{1 +(Q\xi_2)^m} + \text{B}
$$
where $A$ = Lorentzian scale factor #1, $C$ = Lorent... |
Shape-Independent |
07 Sep 2017 |
sasview |
0 |
|
| Dab |
Calculates the scattering from a randomly distributed, two-phase system based on the Debye-Anderson-Brumberger (DAB) model for such systems. The two-phase system is characterized by a single length... |
Shape-Independent |
07 Sep 2017 |
sasview |
0 |
|
| broad-peak (SASfit) |
This file has been automatically generated by sasfit_convert and manually edited by Wojciech Potrzebowski, ESS on 2017-12-05.
The model calculates an empirical functional form for SAS data chara... |
Shape-Independent |
07 Dec 2017 |
wojciechpotrzebowski |
0 |
|
| test_cfile |
testing c file |
Shape-Independent |
16 Apr 2018 |
wojciechpotrzebowski |
0 |
|
| Star Polymer w/ Excluded Volume |
This model describes scattering from a star-branched polymer where the arms of the polymer may have excluded volume, i.e., they need not be Gaussian chains.
Under this model, the form factor of ... |
Shape-Independent |
22 Aug 2018 |
mjahore |
0 |
|
| Two Power Law |
Definition
The scattering intensity $I(q)$ is calculated as
$$ I(q) = \begin{cases} A q^{-m1} + \text{background} & q <= q_c \\ C q^{-m2} + \text{background} & q > q_c \end{cases}
$$
whe... |
Shape-Independent |
07 Sep 2017 |
sasview |
0 |
|
| Unified Power Rg |
Definition
This model employs the empirical multiple level unified Exponential/Power-law fit method developed by Beaucage. Four functions are included so that 1, 2, 3, or 4 levels can be used... |
Shape-Independent |
07 Sep 2017 |
sasview |
0 |
|
| Fractal Core Shell |
Definition
Calculates the scattering from a fractal structure with a primary building block of core-shell spheres, as opposed to just homogeneous spheres in the fractal model. It is an extension... |
Shape-Independent |
07 Sep 2017 |
sasview |
0 |
|
| Correlation Length |
#correlation length model # Note: model title and parameter table are inserted automatically Definition
The scattering intensity I(q) is calculated as
$$ I(Q) = \frac{A}{Q^n} + \frac{C}{1 ... |
Shape-Independent |
07 Sep 2017 |
sasview |
0 |
|
| Mono Gauss Coil |
#mono_gauss_coil model #conversion of DebyeModel.py #converted by Steve King, Mar 2016 This Debye Gaussian coil model strictly describes the scattering from *monodisperse* polymer chains in theta s... |
Shape-Independent |
07 Sep 2017 |
sasview |
0 |
|
| Gauss Lorentz Gel |
This model calculates the scattering from a gel structure, but typically a physical rather than chemical network. It is modeled as a sum of a low-q exponential decay (which happens to give a functi... |
Shape-Independent |
07 Sep 2017 |
sasview |
0 |
|
| 2 Layer General Guinier Porod |
Implementation of the 2 layer General guinier porod model described in
B. Hammouda, "A new Guinier–Porod model", Journal of Applied Crystallography, 43(4), 716, 2010 |
Shape-Independent |
03 Feb 2020 |
dfsunday |
0 |
|
| Exponential |
Flexible exponential model with a flat background.
DEFINITION
This model calculates a variety of exponential functions.
The scattered intensity $I(q)$ is calculated as
$I(q) = \text{sc... |
Shape-Independent |
07 Mar 2020 |
smk78 |
0 |
|
| Binary Blend |
Two-component RPA model with a flat background.
DEFINITION
This model calculates the scattering from a two component polymer blend using the Random Phase Approximation (RPA).
The two polymer... |
Shape-Independent |
07 May 2020 |
smk78 |
0 |
|
| Peak Voigt |
This model describes a pseudo-Voigt shaped peak on a flat background.
Definition
This pseudo-Voigt peak function is a weighted linear summation of Lorentzian (L) and Gaussian (G) peak shapes. T... |
Shape-Independent |
24 Jun 2020 |
smk78 |
0 |
|