source: sasview/src/sas/models/include/lamellar.h @ 79492222

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Last change on this file since 79492222 was 79492222, checked in by krzywon, 8 years ago

Changed the file and folder names to remove all SANS references.

  • Property mode set to 100644
File size: 1.3 KB
Line 
1#if !defined(lamellar_h)
2#define lamellar_h
3#include "parameters.hh"
4
5/** Structure definition for lamellar parameters
6 * [PYTHONCLASS] = LamellarModel
7 * [DISP_PARAMS] = bi_thick
8   [DESCRIPTION] = <text>[Dilute Lamellar Form Factor](from a lyotropic lamellar phase)
9                I(q)= 2*pi*P(q)/(delta *q^(2)), where
10                P(q)=2*(contrast/q)^(2)*(1-cos(q*delta))^(2))
11                bi_thick = bilayer thickness
12                sld_bi = SLD of bilayer
13                sld_sol = SLD of solvent
14                background = Incoherent background
15                scale = scale factor
16
17 </text>
18[FIXED]= <text>bi_thick.width</text>
19 **/
20
21class LamellarModel{
22public:
23  // Model parameters
24  /// Scale factor
25  //  [DEFAULT]=scale=1.0
26  Parameter scale;
27  /// delta bilayer thickness [A]
28  //  [DEFAULT]=bi_thick=50.0 [A]
29  Parameter bi_thick;
30  /// SLD of bilayer [1/A^(2)]
31  //  [DEFAULT]=sld_bi=1.0e-6 [1/A^(2)]
32  Parameter sld_bi;
33  /// SLD of solvent [1/A^(2)]
34  //  [DEFAULT]=sld_sol=6.3e-6 [1/A^(2)]
35  Parameter sld_sol;
36  /// Incoherent Background [1/cm] 0.00
37  //  [DEFAULT]=background=0.0 [1/cm]
38  Parameter background;
39  // Constructor
40  LamellarModel();
41
42  // Operators to get I(Q)
43  double operator()(double q);
44  double operator()(double qx, double qy);
45  double calculate_ER();
46  double calculate_VR();
47  double evaluate_rphi(double q, double phi);
48};
49
50#endif
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