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 length *cor_length*.
For 2D data the scattering intensity is calculated in the same way as 1D, where the $q$ vector is defined as
$$ q=\sqrt{q_x^2 + q_y^2}
$$
References
L.S. Qrnstein and F. Zernike, *Proc. Acad. Sci. Amsterdam* 17, 793 (1914), and *Z. Phys.* 19, 134 (1918), and 27, 761 {1926); referred to as QZ.
Authorship and Verification
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Created By | sasview |
Uploaded | Sept. 7, 2017, 3:56 p.m. |
Category | Shape-Independent |
Score | 0 |
Verified | Verified by SasView Team on 07 Sep 2017 |
In Library | This model is included in the SasView library by default |
Files |
lorentz.py |
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