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Last change
on this file since c1c29b6 was
c1c29b6,
checked in by Jae Cho <jhjcho@…>, 15 years ago
|
some corrections and removed polydispersity from inside of function and set dQ =0
|
-
Property mode set to
100644
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File size:
1.5 KB
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Rev | Line | |
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[34c3020] | 1 | #if !defined(lamellar_h) |
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| 2 | #define lamellar_h |
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| 3 | /** Structure definition for lamellar parameters |
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| 4 | * [PYTHONCLASS] = LamellarModel |
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[975ec8e] | 5 | * [DISP_PARAMS] = bi_thick |
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[42f193a] | 6 | [DESCRIPTION] = <text>[Dilute Lamellar Form Factor](from a lyotropic lamellar phase) |
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[975ec8e] | 7 | I(q)= 2*pi*P(q)/(delta *q^(2)), where |
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| 8 | P(q)=2*(contrast/q)^(2)*(1-cos(q*delta))^(2)) |
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| 9 | bi_thick = bilayer thickness |
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| 10 | sld_bi = SLD of bilayer |
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| 11 | sld_sol = SLD of solvent |
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| 12 | background = Incoherent background |
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| 13 | scale = scale factor |
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| 14 | |
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[42f193a] | 15 | </text> |
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[975ec8e] | 16 | [FIXED]= <text>bi_thick.width</text> |
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[34c3020] | 17 | **/ |
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| 18 | typedef struct { |
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| 19 | /// Scale factor |
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| 20 | // [DEFAULT]=scale=1.0 |
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| 21 | double scale; |
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| 22 | /// delta bilayer thickness [A] |
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[975ec8e] | 23 | // [DEFAULT]=bi_thick=50.0 [A] |
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| 24 | double bi_thick; |
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| 25 | /// SLD of bilayer [1/A²] |
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| 26 | // [DEFAULT]=sld_bi=1.0e-6 [1/A²] |
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| 27 | double sld_bi; |
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| 28 | /// SLD of solvent [1/A²] |
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| 29 | // [DEFAULT]=sld_sol=6.3e-6 [1/A²] |
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| 30 | double sld_sol; |
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[34c3020] | 31 | /// Incoherent Background [1/cm] 0.00 |
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| 32 | // [DEFAULT]=background=0.0 [1/cm] |
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| 33 | double background; |
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[42f193a] | 34 | |
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[34c3020] | 35 | |
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| 36 | } LamellarParameters; |
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| 37 | |
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[c1c29b6] | 38 | /// kernel |
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| 39 | double lamellar_kernel(double dp[], double q); |
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[34c3020] | 40 | /// 1D scattering function |
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| 41 | double lamellar_analytical_1D(LamellarParameters *pars, double q); |
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| 42 | |
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| 43 | /// 2D scattering function |
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| 44 | double lamellar_analytical_2D(LamellarParameters *pars, double q, double phi); |
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| 45 | double lamellar_analytical_2DXY(LamellarParameters *pars, double qx, double qy); |
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| 46 | double lamellar_analytical_2D_scaled(LamellarParameters *pars, double q, double q_x, double q_y); |
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| 47 | |
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| 48 | #endif |
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