All Models

Name Description Category Upload Date Author Score Verified
Pringle Definition The form factor for this bent disc is essentially that of a hyperbolic paraboloid and calculated as $$ P(q) = (\Delta \rho )^2 V \int^{\pi/2}_0 d\psi \sin{\psi} sinc^2 \left( \... Cylinder 07 Sep 2017 sasview 0
Linear Pearls This model provides the form factor for $N$ spherical pearls of radius $R$ linearly joined by short strings (or segment length or edge separation) $l$ $(= A - 2R)$. $A$ is the center-to-center pear... Sphere 07 Sep 2017 sasview 0
Polymer Micelle This model provides the form factor, $P(q)$, for a micelle with a spherical core and Gaussian polymer chains attached to the surface, thus may be applied to block copolymer micelles. To work wel... Sphere 07 Sep 2017 sasview 0
Lorentz Lorentz (Ornstein-Zernicke Model) Definition The Ornstein-Zernicke model is defined by $$ I(q)=\frac{\text{scale}}{1+(qL)^2}+\text{background} $$ The parameter $L$ is the screening len... Shape-Independent 07 Sep 2017 sasview 0
Fcc Paracrystal #fcc paracrystal model #note model title and parameter table are automatically inserted #note - calculation requires double precision .. warning:: This model and this model description are under re... Paracrystal 07 Sep 2017 sasview 0
Raspberry Definition The figure below shows a schematic of a large droplet surrounded by several smaller particles forming a structure similar to that of Pickering emulsions. Schematic of the... Sphere 07 Sep 2017 sasview 0
Onion This model provides the form factor, $P(q)$, for a multi-shell sphere where the scattering length density (SLD) of each shell is described by an exponential, linear, or constant function. The form ... Sphere 07 Sep 2017 sasview 0
Power Law #power_law model #conversion of PowerLawAbsModel.py #converted by Steve King, Dec 2015 This model calculates a simple power law with a flat background. Definition $$ I(q) = \text{scale... Shape-Independent 07 Sep 2017 sasview 0
Squarewell # Note: model title and parameter table are inserted automatically This calculates the interparticle structure factor for a square well fluid spherical particles. The mean spherical approximation (... Structure Factor 07 Sep 2017 sasview 0
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 sasview 0
Peak Lorentz This model describes a Lorentzian shaped peak on a flat background. Definition The scattering intensity $I(q)$ is calculated as $$ I(q) = \frac{scale}{\bigl(1+\bigl(\frac{q-q_0}{B}\big... Shape-Independent 07 Sep 2017 sasview 0
Hardsphere # Note: model title and parameter table are inserted automatically Structure Factor 07 Sep 2017 sasview 0
Core Shell Parallelepiped Definition Calculates the form factor for a rectangular solid with a core-shell structure. The thickness and the scattering length density of the shell or "rim" can be different on each (pair... Parallelepiped 07 Sep 2017 sasview 0
Correlation Length #correlation length model # Note: model title and parameter table are inserted automatically Definition The scattering intensity I(q) is calculated as $$ I(Q) = \frac{A}{Q^n} + \frac{C}{1 ... Shape-Independent 07 Sep 2017 sasview 0
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 sasview 0
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 sasview 0
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
Fractal Definition This model calculates the scattering from fractal-like aggregates of spherical building blocks according the following equation: $$ I(q) = \phi\ V_\text{block} (\rho_\text{block} ... Shape-Independent 07 Sep 2017 sasview 0
Sphere For information about polarised and magnetic scattering, see the `magnetism` documentation. Definition The 1D scattering intensity is calculated in the following way (Guinier, 1955) $$ ... Sphere 07 Sep 2017 sasview 0
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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