Name | Description | Category | Upload Date | Author | Score | Verified |
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Two Power Law | Definition The scattering intensity $I(q)$ is calculated as $$ I(q) = \begin{cases} A q^{-m1} + \text{background} & q <= q_c \\ C q^{-m2} + \text{background} & q > q_c \end{cases} $$ whe... | Shape-Independent | 07 Sep 2017 | sasview | 0 | |

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 | |

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 | |

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 | |

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 | |

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 | |

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 | |

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 | |

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 | |

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 | |

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 | |

Guinier | Definition This model fits the Guinier function $$ I(q) = \text{scale} \cdot \exp{\left[ \frac{-Q^2 R_g^2 }{3} \right]} + \text{background} $$ to the data directly without any need for l... | Shape-Independent | 07 Sep 2017 | sasview | 0 | |

Line | This model calculates intensity using simple linear function Definition The scattering intensity $I(q)$ is calculated as $$ I(q) = \text{scale} (A + B \cdot q) + \text{background} $$ ... | Shape-Independent | 07 Sep 2017 | sasview | 0 | |

broad-peak (SASfit) | This file has been automatically generated by sasfit_convert and manually edited by Wojciech Potrzebowski, ESS on 2017-12-05. The model calculates an empirical functional form for SAS data chara... | Shape-Independent | 07 Dec 2017 | wojciechpotrzebowski | 0 | |

Star Polymer w/ Excluded Volume | This model describes scattering from a star-branched polymer where the arms of the polymer may have excluded volume, i.e., they need not be Gaussian chains. Under this model, the form factor of ... | Shape-Independent | 22 Aug 2018 | mjahore | 0 | |

2 Layer General Guinier Porod | Implementation of the 2 layer General guinier porod model described in B. Hammouda, "A new Guinierâ€“Porod model", Journal of Applied Crystallography, 43(4), 716, 2010 | Shape-Independent | 03 Feb 2020 | dfsunday | 0 | |

Exponential | Flexible exponential model with a flat background. DEFINITION This model calculates a variety of exponential functions. The scattered intensity $I(q)$ is calculated as $I(q) = \text{sc... | Shape-Independent | 07 Mar 2020 | smk78 | 0 | |

Binary Blend | Two-component RPA model with a flat background. DEFINITION This model calculates the scattering from a two component polymer blend using the Random Phase Approximation (RPA). The two polymer... | Shape-Independent | 07 May 2020 | smk78 | 0 | |

Peak Voigt | This model describes a pseudo-Voigt shaped peak on a flat background. Definition This pseudo-Voigt peak function is a weighted linear summation of Lorentzian (L) and Gaussian (G) peak shapes. T... | Shape-Independent | 24 Jun 2020 | smk78 | 0 | |

Rpa | Definition Calculates the macroscopic scattering intensity for a multi-component homogeneous mixture of polymers using the Random Phase Approximation. This general formalism contains 10 speci... | Shape-Independent | 07 Sep 2017 | sasview | 0 |