Changeset 331870d in sasmodels
- Timestamp:
- Mar 18, 2018 2:40:22 PM (7 years ago)
- Branches:
- master, core_shell_microgels, magnetic_model, ticket-1257-vesicle-product, ticket_1156, ticket_1265_superball, ticket_822_more_unit_tests
- Children:
- 5bc6d21
- Parents:
- 9616dfe
- File:
-
- 1 edited
-
sasmodels/models/core_shell_parallelepiped.py (modified) (7 diffs)
Legend:
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sasmodels/models/core_shell_parallelepiped.py
rdbf1a60 r331870d 23 23 .. figure:: img/parallelepiped_geometry.jpg 24 24 25 Core of the core shell Parallelepiped with the corresponding definition25 Core of the core shell parallelepiped with the corresponding definition 26 26 of sides. 27 27 … … 33 33 .. figure:: img/core_shell_parallelepiped_projection.jpg 34 34 35 AB cut through the core-shell par llelipiped showing the cross secion of36 four of the six shell slabs. As can be seen This model leaves **"gaps"**35 AB cut through the core-shell parallelipiped showing the cross secion of 36 four of the six shell slabs. As can be seen, this model leaves **"gaps"** 37 37 at the corners of the solid. 38 38 … … 76 76 .. math:: 77 77 78 S(Q_X, L) = L \frac{\sin \tfrac{1}{2} Q_X L}{\tfrac{1}{2} Q_X L}78 S(Q_X, L) = L \frac{\sin (\tfrac{1}{2} Q_X L)}{\tfrac{1}{2} Q_X L} 79 79 80 80 and … … 88 88 89 89 where $\rho_\text{core}$, $\rho_\text{A}$, $\rho_\text{B}$ and $\rho_\text{C}$ 90 are the scattering length of the parallelepiped core, and the rectangular90 are the scattering lengths of the parallelepiped core, and the rectangular 91 91 slabs of thickness $t_A$, $t_B$ and $t_C$, respectively. $\rho_\text{solvent}$ 92 92 is the scattering length of the solvent. … … 116 116 based on the the averaged effective radius $(=\sqrt{(A+2t_A)(B+2t_B)/\pi})$ 117 117 and length $(C+2t_C)$ values, after appropriately sorting the three dimensions 118 to give an oblate or prolate particle, to give an effective radius ,118 to give an oblate or prolate particle, to give an effective radius 119 119 for $S(q)$ when $P(q) * S(q)$ is applied. 120 120 121 121 For 2d data the orientation of the particle is required, described using 122 angles $\theta$, $\phi$ and $\Psi$ as in the diagrams below , for further122 angles $\theta$, $\phi$ and $\Psi$ as in the diagrams below. For further 123 123 details of the calculation and angular dispersions see :ref:`orientation`. 124 124 The angle $\Psi$ is the rotational angle around the *long_c* axis. For example, … … 135 135 Note that rotation $\theta$, initially in the $xz$ plane, is carried 136 136 out first, then rotation $\phi$ about the $z$ axis, finally rotation 137 $\Psi$ is now around the axis of the cylinder. The neutron or X-ray137 $\Psi$ is now around the axis of the particle. The neutron or X-ray 138 138 beam is along the $z$ axis. 139 139 … … 157 157 158 158 * **Author:** NIST IGOR/DANSE **Date:** pre 2010 159 * **Converted to sasmodels by:** Miguel Gonzale s**Date:** February 26, 2016159 * **Converted to sasmodels by:** Miguel Gonzalez **Date:** February 26, 2016 160 160 * **Last Modified by:** Paul Kienzle **Date:** October 17, 2017 161 161 * Cross-checked against hollow rectangular prism and rectangular prism for
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