Changeset 755ecc2 in sasmodels
- Timestamp:
- Nov 26, 2016 8:26:38 PM (8 years ago)
- Branches:
- master, core_shell_microgels, costrafo411, magnetic_model, ticket-1257-vesicle-product, ticket_1156, ticket_1265_superball, ticket_822_more_unit_tests
- Children:
- 5810f00
- Parents:
- 2d73a53
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
sasmodels/models/core_shell_cylinder.py
r40a87fa r755ecc2 1 # core shell cylinder model2 # Note: model title and parameter table are inserted automatically3 1 r""" 4 The form factor is normalized by the particle volume.5 6 2 Definition 7 3 ---------- 8 4 9 5 The output of the 2D scattering intensity function for oriented core-shell 10 cylinders is given by (Kline, 2006) 6 cylinders is given by (Kline, 2006 [#kline]_). The form factor is normalized 7 by the particle volume. 11 8 12 9 .. math:: … … 61 58 The $\theta$ and $\phi$ parameters are not used for the 1D output. 62 59 63 Validation64 ----------65 66 Validation of our code was done by comparing the output of the 1D model to67 the output of the software provided by the NIST (Kline, 2006).68 69 Averaging over a distribution of orientation is done by evaluating the70 equation above. Since we have no other software to compare the71 implementation of the intensity for fully oriented cylinders, we72 compared the result of averaging our 2D output using a uniform73 distribution $p(\theta,\phi) = 1.0$.74 75 60 Reference 76 61 --------- 77 see, for example, Ian Livsey J. Chem. Soc., Faraday Trans. 2, 1987,83, 1445-145278 62 79 2016/03/18 - Description reviewed by RKH 63 .. [#] see, for example, Ian Livsey J. Chem. Soc., Faraday Trans. 2, 1987,83, 64 1445-1452 65 .. [#kline] S R Kline, *J Appl. Cryst.*, 39 (2006) 895 66 67 Authorship and Verification 68 ---------------------------- 69 70 * **Author:** NIST IGOR/DANSE **Date:** pre 2010 71 * **Last Modified by:** Paul Kienzle **Date:** Aug 8, 2016 72 * **Last Reviewed by:** Richard Heenan **Date:** March 18, 2016 80 73 """ 81 74 … … 158 151 theta_pd=15, theta_pd_n=45, 159 152 phi_pd=15, phi_pd_n=1) 160 # ADDED by: RKH ON: 18Mar2016 renamed sld's etc 153
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