source: sasview/sansmodels/include/TwoYukawa.h @ 2d9c7266

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Last change on this file since 2d9c7266 was 318b5bbb, checked in by Jae Cho <jhjcho@…>, 12 years ago

Added polarization and magnetic stuffs

  • Property mode set to 100644
File size: 1.4 KB
Line 
1#if !defined(TwoYukawa_h)
2#define TwoYukawa_h
3#include "parameters.hh"
4
5/**
6 * Structure definition for TwoYukawaModel (factor) parameters
7 */
8//[PYTHONCLASS] = TwoYukawaModel
9//[DESCRIPTION] =<text>Structure factor for interacting particles:                   .
10//
11//  Calculates the structure factor, S(q), for a monodisperse spherical particle interacting
12//  through a two-Yukawa potential. The Mean Spherical Approximation is used as the
13//  closure to solve the Ornstein-Zernicke equations.
14//
15//  The function calculated is S(q), based on the solution of the Ornstein-Zernicke equations
16//  using the Two-Yukawa potential (in its scaled form, r=r/diam):
17//
18//  Radius is that of the hard core. The returned value is dimensionless.
19//       </text>
20
21
22class TwoYukawaModel{
23public:
24
25  // Model parameters
26
27  /// Something volfraction
28  //  [DEFAULT]=volfraction= 0.2
29  Parameter volfraction;
30 
31  //  [DEFAULT]=effect_radius= 50.0 [A]
32  Parameter effect_radius;
33 
34  //  [DEFAULT]=scale_K1= 6.0
35  Parameter scale_K1;
36 
37  //  [DEFAULT]=decayConst_Z1= 10.0
38  Parameter decayConst_Z1;
39 
40  //  [DEFAULT]=scale_K2= -1.0
41  Parameter scale_K2;
42 
43  //  [DEFAULT]=decayConst_Z2= 2.0
44  Parameter decayConst_Z2;
45
46  // Constructor
47  TwoYukawaModel();
48
49  // Operators to get I(Q)
50  double operator()(double q);
51  double operator()(double qx, double qy);
52  double calculate_ER();
53  double calculate_VR();
54  double evaluate_rphi(double q, double phi);
55};
56
57#endif
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