| 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 |
sasview |
0 |
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| Fractal |
Definition
This model calculates the scattering from fractal-like aggregates of spherical building blocks according the following equation:
$$ I(q) = \phi\ V_\text{block} (\rho_\text{block} ... |
Shape-Independent |
07 Sep 2017 |
sasview |
0 |
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| Sphere |
For information about polarised and magnetic scattering, see the `magnetism` documentation.
Definition
The 1D scattering intensity is calculated in the following way (Guinier, 1955)
$$ ... |
Sphere |
07 Sep 2017 |
sasview |
0 |
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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 |
sasview |
0 |
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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 |
sasview |
0 |
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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 |
sasview |
0 |
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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 |
sasview |
2 |
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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 |
sasview |
0 |
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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 |
sasview |
0 |
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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 |
sasview |
0 |
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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 |
sasview |
0 |
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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 |
sasview |
0 |
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| Lamellar Hg Stack Caille |
# Note: model title and parameter table are inserted automatically This model provides the scattering intensity, $I(q) = P(q)S(q)$, for a lamellar phase where a random distribution in solution are ... |
Lamellae |
07 Sep 2017 |
sasview |
0 |
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| Spinodal |
Definition
This model calculates the SAS signal of a phase separating system undergoing spinodal decomposition. The scattering intensity $I(q)$ is calculated as
$$ I(q) = I_{max}\frac{(1+\... |
Shape-Independent |
07 Sep 2017 |
sasview |
0 |
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| Ellipsoid |
# ellipsoid model # Note: model title and parameter table are inserted automatically The form factor is normalized by the particle volume
Definition
The output of the 2D scattering intensi... |
Ellipsoid |
07 Sep 2017 |
sasview |
0 |
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| Pearl Necklace |
This model provides the form factor for a pearl necklace composed of two elements: *N* pearls (homogeneous spheres of radius *R*) freely jointed by *M* rods (like strings - with a total mass *Mw* =... |
Cylinder |
07 Sep 2017 |
sasview |
0 |
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| Sc Paracrystal |
Definition
Calculates the scattering from a **simple cubic lattice** with paracrystalline distortion. Thermal vibrations are considered to be negligible, and the size of the paracrystal is in... |
Paracrystal |
07 Sep 2017 |
sasview |
0 |
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| Lamellar |
Polydispersity in the bilayer thickness can be applied from the GUI.
Definition
The scattering intensity $I(q)$ for dilute, randomly oriented, "infinitely large" sheets or lamellae is
$... |
Lamellae |
07 Sep 2017 |
sasview |
0 |
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| Polymer Excl Volume |
This model describes the scattering from polymer chains subject to excluded volume effects and has been used as a template for describing mass fractals.
Definition
The form factor was orig... |
Shape-Independent |
07 Sep 2017 |
sasview |
0 |
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| Mass Fractal |
Calculates the scattering from fractal-like aggregates based on the Mildner reference.
Definition
The scattering intensity $I(q)$ is calculated as
$$ I(q) = scale \times P(q)S(q) + bac... |
Shape-Independent |
07 Sep 2017 |
sasview |
0 |
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