Changeset 40a87fa in sasmodels for sasmodels/models/guinier.py


Ignore:
Timestamp:
Aug 8, 2016 9:24:11 AM (8 years ago)
Author:
Paul Kienzle <pkienzle@…>
Branches:
master, core_shell_microgels, costrafo411, magnetic_model, release_v0.94, release_v0.95, ticket-1257-vesicle-product, ticket_1156, ticket_1265_superball, ticket_822_more_unit_tests
Children:
2472141
Parents:
2d65d51
Message:

lint and latex cleanup

File:
1 edited

Legend:

Unmodified
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  • sasmodels/models/guinier.py

    r2c74c11 r40a87fa  
    55This model fits the Guinier function 
    66 
    7 .. math:: I(q) = scale \exp{\left[ \frac{-Q^2R_g^2}{3} \right]} 
     7.. math:: 
    88 
    9 to the data directly without any need for linearisation 
    10 (*cf*. the usual plot of $\ln I(q)$ vs $q^2$\ ). Note that you may have to  
    11 restrict the data range to include small q only, where the Guinier approximation 
    12 actually applies. See also the guinier_porod model. 
     9    I(q) = \text{scale} \cdot \exp{\left[ \frac{-Q^2R_g^2}{3} \right]} 
     10            + \text{background} 
     11 
     12to the data directly without any need for linearisation (*cf*. the usual 
     13plot of $\ln I(q)$ vs $q^2$\ ). Note that you may have to restrict the data 
     14range to include small q only, where the Guinier approximation actually 
     15applies. See also the guinier_porod model. 
    1316 
    1417For 2D data the scattering intensity is calculated in the same way as 1D, 
    1518where the $q$ vector is defined as 
    1619 
    17 .. math:: q=\sqrt{q_x^2 + q_y^2} 
     20.. math:: q = \sqrt{q_x^2 + q_y^2} 
    1821 
    1922References 
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