| Squarewell |
# Note: model title and parameter table are inserted automatically Calculates the interparticle structure factor for a hard sphere fluid with a narrow, attractive, square well potential. **The Mean... |
Structure Factor |
07 Sep 2017 |
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| Gel Fit |
*This model was implemented by an interested user!*
Unlike a concentrated polymer solution, the fine-scale polymer distribution in a gel involves at least two characteristic length scales, a sho... |
Shape-Independent |
07 Sep 2017 |
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| Peak Lorentz |
This model describes a Lorentzian shaped peak on a flat background.
Definition
The scattering intensity $I(q)$ is calculated as
$$ I(q) = \frac{scale}{\bigl(1+\bigl(\frac{q-q_0}{B}\big... |
Shape-Independent |
07 Sep 2017 |
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| Hardsphere |
# Note: model title and parameter table are inserted automatically Calculates the interparticle structure factor for monodisperse spherical particles interacting through hard sphere (excluded volum... |
Structure Factor |
07 Sep 2017 |
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| Core Shell Parallelepiped |
Definition
Calculates the form factor for a rectangular solid with a core-shell structure. The thickness and the scattering length density of the shell or "rim" can be different on each (pair... |
Parallelepiped |
07 Sep 2017 |
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| Correlation Length |
#correlation length model # Note: model title and parameter table are inserted automatically Definition
The scattering intensity I(q) is calculated as
$$ I(Q) = \frac{A}{Q^n} + \frac{C}{1 ... |
Shape-Independent |
07 Sep 2017 |
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| Binary Hard Sphere |
Definition
The binary hard sphere model provides the scattering intensity, for binary mixture of hard spheres including hard sphere interaction between those particles, using rhw Percus-Yevic... |
Sphere |
07 Sep 2017 |
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| Core Shell Bicelle |
Definition
This model provides the form factor for a circular cylinder with a core-shell scattering length density profile. Thus this is a variation of a core-shell cylinder or disc where the... |
Cylinder |
07 Sep 2017 |
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| Capped Cylinder |
Definitions
Calculates the scattering from a cylinder with spherical section end-caps. Like `barbell`, this is a sphereocylinder with end caps that have a radius larger than that of the cylin... |
Cylinder |
07 Sep 2017 |
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| Fractal |
Definition
This model calculates the scattering from fractal-like aggregates of spherical building blocks according the following equation:
$$ I(q) = \phi\ V_\text{block} (\rho_\text{block} ... |
Shape-Independent |
07 Sep 2017 |
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| Sphere |
For information about polarised and magnetic scattering, see the `magnetism` documentation.
Definition
The 1D scattering intensity is calculated in the following way (Guinier, 1955)
$$ ... |
Sphere |
07 Sep 2017 |
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| Teubner Strey |
Definition
This model calculates the scattered intensity of a two-component system using the Teubner-Strey model. Unlike `dab` this function generates a peak. A two-phase material can be char... |
Shape-Independent |
07 Sep 2017 |
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| Hollow Rectangular Prism |
# rectangular_prism model # Note: model title and parameter table are inserted automatically Definition
This model provides the form factor, $P(q)$, for a hollow rectangular parallelepiped wi... |
Parallelepiped |
07 Sep 2017 |
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| Lamellar Hg |
# Note: model title and parameter table are inserted automatically This model provides the scattering intensity, $I(q)$, for a lyotropic lamellar phase where a random distribution in solution are a... |
Lamellae |
07 Sep 2017 |
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| Rectangular Prism |
# rectangular_prism model # Note: model title and parameter table are inserted automatically
This model provides the form factor, $P(q)$, for a rectangular prism.
Note that this model is almo... |
Parallelepiped |
07 Sep 2017 |
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| Hollow Cylinder |
Definition
This model provides the form factor, $P(q)$, for a monodisperse hollow right angle circular cylinder (rigid tube) where the The inside and outside of the hollow cylinder are assume... |
Cylinder |
07 Sep 2017 |
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| Barbell |
Definition
Calculates the scattering from a barbell-shaped cylinder. Like `capped-cylinder`, this is a spherocylinder with spherical end caps that have a radius larger than that of the cylin... |
Cylinder |
07 Sep 2017 |
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| Lamellar Stack Paracrystal |
# Note: model title and parameter table are inserted automatically This model calculates the scattering from a stack of repeating lamellar structures. The stacks of lamellae (infinite in lateral di... |
Lamellae |
07 Sep 2017 |
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| Gaussian Peak |
Definition
This model describes a Gaussian shaped peak on a flat background
$$ I(q) = (\text{scale}) \exp\left[ -\tfrac12 (q-q_0)^2 / \sigma^2 \right] + \text{background}
$$
with the ... |
Shape-Independent |
07 Sep 2017 |
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| 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 |
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