Name: | SasView Team |

Username: | sasview |

Name | Description |
---|---|

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 Spherical Approximation (MSA) closure relationshi... |

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 shorter correlation length ( $a1$ ) to describe the r... |

Peak Lorentz | This model describes a Lorentzian shaped peak on a flat background. Definition The scattering intensity $I(q)$ is calculated as $$ I(q) = \frac{scale}{\bigl(1+\bigl(\frac{q-q_0}{B}\bigr)^2\bigr)} + background $$ with the peak having ... |

Hardsphere | # Note: model title and parameter table are inserted automatically Calculates the interparticle structure factor for monodisperse spherical particles interacting through hard sphere (excluded volume) interactions. This $S(q)$ may also be a reasona... |

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) of faces. The three dimensions of the core of th... |

Correlation Length | #correlation length model # Note: model title and parameter table are inserted automatically Definition The scattering intensity I(q) is calculated as $$ I(Q) = \frac{A}{Q^n} + \frac{C}{1 + (Q\xi)^m} + \text{background} $$ The first term... |

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-Yevick closure. The calculation is an exact multi-compo... |

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 shell on the walls and ends may be of different t... |

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 cylinder, but with the center of the end cap radius lyi... |

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} - \rho_\text{solvent})^2 P(q)S(q) + \text{backgrou... |

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) $$ I(q) = \frac{\text{scale}}{V} \cdot \left[ 3V(\De... |

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 characterised by two length scales - a correlation len... |

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 with a wall of thickness $\Delta$. The 1D scattering... |

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 assumed. The SLD of the head region is taken to be ... |

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 almost totally equivalent to the existing `parallelepi... |