Changeset 93fe8a1 in sasmodels
 Timestamp:
 Oct 25, 2018 11:15:03 AM (3 months ago)
 Branches:
 master, beta_approx, cudatest, py3, ticket1015gpumemerror, ticket1015quickfix, ticket1157, ticket608userdefinedweights, ticket_1156
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 df87acf
 Parents:
 dcc51ee
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 1 edited
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sasmodels/models/spinodal.py
r475ff58 r93fe8a1 12 12 where $x=q/q_0$, $q_0$ is the peak position, $I_{max}$ is the intensity 13 13 at $q_0$ (parameterised as the $scale$ parameter), and $B$ is a flat 14 background. The spinodal wavelength is given by $2\pi/q_0$. 14 background. The spinodal wavelength, $\Lambda$, is given by $2\pi/q_0$. 15 16 The definition of $I_{max}$ in the literature varies. Hashimoto *et al* (1991) 17 define it as 18 19 .. math:: 20 I_{max} = \Lambda^3\Delta\rho^2 21 22 whereas Meier & Strobl (1987) give 23 24 .. math:: 25 I_{max} = V_z\Delta\rho^2 26 27 where $V_z$ is the volume per monomer unit. 15 28 16 29 The exponent $\gamma$ is equal to $d+1$ for offcritical concentration … … 28 41 29 42 H. Furukawa. Dynamicsscaling theory for phaseseparating unmixing mixtures: 30 Growth rates of droplets and scaling properties of autocorrelation functions. 31 Physica A 123,497 (1984). 43 Growth rates of droplets and scaling properties of autocorrelation functions. 44 Physica A 123, 497 (1984). 45 46 H. Meier & G. Strobl. SmallAngle Xray Scattering Study of Spinodal 47 Decomposition in Polystyrene/Poly(styrenecobromostyrene) Blends. 48 Macromolecules 20, 649654 (1987). 49 50 T. Hashimoto, M. Takenaka & H. Jinnai. Scattering Studies of SelfAssembling 51 Processes of Polymer Blends in Spinodal Decomposition. 52 J. Appl. Cryst. 24, 457466 (1991). 32 53 33 54 Revision History … … 35 56 36 57 * **Author:** Dirk Honecker **Date:** Oct 7, 2016 37 * **Revised:** Steve King **Date:** Sep 7, 201858 * **Revised:** Steve King **Date:** Oct 25, 2018 38 59 """ 39 60
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