source: sasview/src/sas/models/include/SquareWell.h @ c93122e

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Last change on this file since c93122e was 79492222, checked in by krzywon, 10 years ago

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

  • Property mode set to 100644
File size: 1.4 KB
Line 
1#if !defined(SquareWell_h)
2#define SquareWell_h
3#include "parameters.hh"
4
5/**Structure definition for SquareWell parameters
6 */
7//   [PYTHONCLASS] = SquareWellStructure
8//   [DISP_PARAMS] = effect_radius
9//   [DESCRIPTION] = <text> Structure Factor for interacting particles:             .
10//
11//  The interaction potential is
12//
13//              U(r)= inf   , r < 2R
14//                      = -d    , 2R <= r <=2Rw
15//                      = 0     , r >= 2Rw
16//
17//              R: effective radius (A)of the particle
18//              v: volume fraction
19//              d: well depth
20//              w: well width; multiples of the
21//              particle diameter
22//
23//              Ref: Sharma, R. V.; Sharma,
24//      K. C., Physica, 1977, 89A, 213.
25//                      </text>
26//   [FIXED]= effect_radius.width
27//[ORIENTATION_PARAMS]= <text> </text>
28
29class SquareWellStructure{
30public:
31  // Model parameters
32  /// effective radius of particle [A]
33  //  [DEFAULT]=effect_radius=50.0 [A]
34  Parameter effect_radius;
35
36  /// Volume fraction
37  //  [DEFAULT]=volfraction= 0.040
38  Parameter volfraction;
39
40  /// Well depth [kT]
41  //  [DEFAULT]=welldepth= 1.50 [kT]
42  Parameter welldepth;
43
44  /// Well width
45  //  [DEFAULT]=wellwidth= 1.20
46  Parameter wellwidth;
47
48  // Constructor
49  SquareWellStructure();
50
51  // Operators to get I(Q)
52  double operator()(double q);
53  double operator()(double qx, double qy);
54  double calculate_ER();
55  double calculate_VR();
56  double evaluate_rphi(double q, double phi);
57};
58
59#endif
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