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Name Description Category Upload Date Author Score Verified
Core Shell Bicelle Elliptical Definition This model provides the form factor for an elliptical cylinder with a core-shell scattering length density profile. Thus this is a variation of the core-shell bicelle model, but wi... Cylinder 07 Sep 2017 sasview 0
Triaxial Ellipsoid # triaxial ellipsoid model # Note: model title and parameter table are inserted automatically Definition Ellipsoid with $R_a$ as *radius_equat_minor*, $R_b$ as *radius_equat_major* ... Ellipsoid 07 Sep 2017 sasview 0
Adsorbed Layer Definition This model describes the scattering from a layer of surfactant or polymer adsorbed on large, smooth, notionally spherical particles under the conditions that (i) the particles (cor... Sphere 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
Vesicle Definition This model provides the form factor, *P(q)*, for an unilamellar vesicle and is effectively identical to the hollow sphere reparameterized to be more intuitive for a vesicle and nor... Sphere 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 $$ \begin{align*} I(q) = \... Shape-Independent 07 Sep 2017 sasview 0
Core Multi Shell Definition This model is a trivial extension of the CoreShell function to a larger number of shells. The scattering length density profile for the default sld values (w/ 4 shells). ... Sphere 07 Sep 2017 sasview 0
Core Shell Sphere .. _core_shell_sphere: This model provides the form factor, $P(q)$, for a spherical particle with a core-shell structure. The form factor is normalized by the particle volume. For information... Sphere 07 Sep 2017 sasview 0
Hollow Rectangular Prism Thin Walls # rectangular_prism model # Note: model title and parameter table are inserted automatically Definition This model provides the form factor, $P(q)$, for a hollow rectangular prism with inf... Parallelepiped 07 Sep 2017 sasview 0
Mono Gauss Coil #mono_gauss_coil model #conversion of DebyeModel.py #converted by Steve King, Mar 2016 This Debye Gaussian coil model strictly describes the scattering from *monodisperse* polymer chains in theta s... Shape-Independent 07 Sep 2017 sasview 0
Elliptical Cylinder Elliptical cylinder geometry $a = r_\text{minor}$ and $\nu = r_\text{major} / r_\text{minor}$ is the axis ratio. The function calculated is $$ I(\vec q)=\frac{1}{V_\text{cyl}}\int{d\psi... Cylinder 07 Sep 2017 sasview 0
Fuzzy Sphere For information about polarised and magnetic scattering, see the `magnetism` documentation. Definition The scattering intensity $I(q)$ is calculated as: $$ I(q) = \frac{\text{scale}}{V... Sphere 07 Sep 2017 sasview 0
Porod This model fits the Porod function $$ I(q) = C/q^4 $$ to the data directly without any need for linearisation (cf. Log I(q) vs Log q). Here $C = 2\pi (\Delta\rho)^2 S_v$ is the scale factor ... Shape-Independent 07 Sep 2017 sasview 0
star_polymer_v2 Reparametrised version, fits Rg not Rg^2^ Documentation corrected, see ticket #962, with grateful thanks to Ziang Li for pointing out the issues. The models is still noisy at very small Q when Rg... Shape-Independent 22 May 2017 richardh 0
Pringle-Schmidt Helices This is the Pringle-Schmidt equation for fitting the helical form factor of an infinitely long helix formed by two helical tapes wrapped around each other at the angle $\phi$. $$I(q) = \frac{\pi... Cylinder 05 Jan 2017 tim.snow 0
Oblate Spheroid Follows the surface $\frac{x^2 + y^2}{a^2} + \frac{z^2}{c^2} = 1$ where $a$ is the equatorial radius, $c$ is the polar radius, and $a > c$. Ellipsoid 07 Dec 2016 robertdfrench 0
RPA models Calculates the macroscopic scattering intensity for a multi-component homogeneous mixture of polymers using the Random Phase Approximation. This general formalism contains 10 specific cases Case... Shape-Independent 15 Sep 2016 butler 0
Guinier Porod Calculates the scattering for a generalized Guinier/power law object. This is an empirical model that can be used to determine the size and dimensionality of scattering objects, including asymmetri... Shape-Independent 15 Sep 2016 sasview 0
Core Shell Cylinder Definition cylinders is given by (Kline, 20_). The form factor is normalized The output of the 2D scattering intensity function for oriented core-shell by the particle volume. Note that in th... Cylinder 08 Sep 2016 sasview 2

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