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25 << 25 //
>> 26 //
26 //-------------------------------------------- 27 //---------------------------------------------------------------------------
>> 28 //
27 // ClassName: G4UCNMicroRoughnessHelper 29 // ClassName: G4UCNMicroRoughnessHelper
28 // 30 //
29 // Class description: 31 // Class description:
30 // 32 //
31 // This file contains the headers of various f 33 // This file contains the headers of various functions all related to the
32 // calculation of microroughness. 34 // calculation of microroughness.
33 // see A. Steyerl, Z. Physik 254 (1972) 169. 35 // see A. Steyerl, Z. Physik 254 (1972) 169.
34 // 36 //
35 // Angular cut: for angles which are closer to 37 // Angular cut: for angles which are closer to the specular direction than a
36 // certain value (0.01°), the probability is 38 // certain value (0.01°), the probability is set to 0 in order to avoid a
37 // hang-up at the generation of the polar angl 39 // hang-up at the generation of the polar angle due to a very sharp angular
38 // distribution 40 // distribution
39 // 41 //
>> 42 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 43
40 // 12-05-14, adopted from Stefan Heule (PSI) T 44 // 12-05-14, adopted from Stefan Heule (PSI) Thesis by P.Gumplinger
>> 45 // http://ucn.web.psi.ch/papers/stefanheule_thesis2008.pdf
41 // reported in F. Atchison et al., E 46 // reported in F. Atchison et al., Eur. Phys. J. A 44, 23–29 (2010)
42 // DOI: 10.1140/epja/i2 <<
43 // Thanks to Geza Zsigmond 47 // Thanks to Geza Zsigmond
44 // <<
45 // 02-11-19 Stefan Heule's thesis is availabl <<
46 // https://www.psi.ch/en/ltp-ucn-phy <<
47 // or directly at https://opac.nebis <<
48 48
49 #ifndef G4MICROROUGHNESSHELPER_HH 49 #ifndef G4MICROROUGHNESSHELPER_HH
50 #define G4MICROROUGHNESSHELPER_HH 1 50 #define G4MICROROUGHNESSHELPER_HH 1
51 51
52 #include "G4Types.hh" 52 #include "G4Types.hh"
53 53
>> 54 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 55
54 class G4UCNMicroRoughnessHelper 56 class G4UCNMicroRoughnessHelper
55 { 57 {
56 public: // with description << 58 public: // with description
57 static G4UCNMicroRoughnessHelper* GetInstanc << 59
>> 60 static G4UCNMicroRoughnessHelper* GetInstance();
>> 61
>> 62 protected:
>> 63
>> 64 G4UCNMicroRoughnessHelper();
>> 65 ~G4UCNMicroRoughnessHelper();
>> 66
>> 67 public: // with description
>> 68
>> 69 // Transmitted intensity with k-vector in vacuum
>> 70
>> 71 // arguments:
>> 72 // 1) cos(theta)^2,
>> 73 // 2) (k_l/k)^2
>> 74
>> 75 G4double S2(G4double, G4double) const;
>> 76
>> 77 // Transmitted intensity with k-vector within the medium
>> 78
>> 79 // arguments:
>> 80 // 1) cos(theta')^2,
>> 81 // 2) (k_l/k')^2
>> 82
>> 83 G4double SS2(G4double, G4double) const;
>> 84
>> 85 // Fourier-tranform of the autocorrelation function with k-vector in vacuum
>> 86
>> 87 // arguments:
>> 88 // 1) k^2,
>> 89 // 2) theta_i,
>> 90 // 3) theta_o,
>> 91 // 4) phi_o,
>> 92 // 5) b^2,
>> 93 // 6) w^2,
>> 94 // 7) angular cut
>> 95
>> 96 G4double Fmu(G4double, G4double, G4double,
>> 97 G4double, G4double, G4double, G4double) const;
>> 98
>> 99 // Fourier-tranform of the autocorrelation function with k-vector within
>> 100 // the medium
>> 101
>> 102 // arguments:
>> 103 // 1) k,
>> 104 // 2) k',
>> 105 // 3) theta_i,
>> 106 // 4) theta'_o,
>> 107 // 5) phi'_o,
>> 108 // 6) b^2,
>> 109 // 7) w^2,
>> 110 // 8) angular cut
>> 111 // 9) theta_refract
>> 112
>> 113 G4double FmuS(G4double, G4double, G4double, G4double,
>> 114 G4double, G4double, G4double, G4double, G4double) const;
>> 115
>> 116 // Integral probability for non-specular reflection
>> 117
>> 118 // arguments:
>> 119 // 1) E,
>> 120 // 2) V_F,
>> 121 // 3) theta_i,
>> 122 // 4) number of angles theta_o for which the probability is calculated,
>> 123 // 5) number of angles phi_o for which the probability is calculated,
>> 124 // 6) b^2,
>> 125 // 7) w^2,
>> 126 // 8) pointer to G4double array with max values of the probability,
>> 127 // 9) angular cut
>> 128
>> 129 G4double IntIplus(G4double, G4double, G4double, G4int, G4int,
>> 130 G4double, G4double, G4double*, G4double) const;
>> 131
>> 132 // Probability of non-specular reflection with the microroughness model
>> 133
>> 134 // arguments:
>> 135 // 1) E,
>> 136 // 2) V_F,
>> 137 // 3) theta_i,
>> 138 // 4) theta_o,
>> 139 // 5) phi_o,
>> 140 // 6) b,
>> 141 // 7) w,
>> 142 // 8) angular cut
>> 143
>> 144 G4double ProbIplus (G4double, G4double, G4double, G4double,
>> 145 G4double, G4double, G4double, G4double) const;
>> 146
>> 147 // Integral probability for non-specular transmission
>> 148
>> 149 // arguments:
>> 150 // 1) E,
>> 151 // 2) V_F,
>> 152 // 3) theta_i,
>> 153 // 4) number of angles theta_o for which the probability is calculated,
>> 154 // 5) number of angles phi_o for which the probability is calculated,
>> 155 // 6) b^2,
>> 156 // 7) w^2,
>> 157 // 8) pointer to G4double array with max values of the probability,
>> 158 // 9) angular cut
>> 159
>> 160 G4double IntIminus(G4double, G4double, G4double, G4int, G4int,
>> 161 G4double, G4double, G4double*, G4double) const;
>> 162
>> 163 // Probability of non-specular transmission with the microroughness model
>> 164
>> 165 // arguments:
>> 166 // 1) E,
>> 167 // 2) V_F,
>> 168 // 3) theta_i,
>> 169 // 4) theta'_o,
>> 170 // 5) phi'_o,
>> 171 // 6) b,
>> 172 // 7) w,
>> 173 // 8) angular cut
>> 174
>> 175 G4double ProbIminus (G4double, G4double, G4double, G4double,
>> 176 G4double, G4double, G4double, G4double) const;
>> 177
>> 178 private:
58 179
59 public: // with description << 180 static G4UCNMicroRoughnessHelper* fpInstance;
60 // Transmitted intensity with k-vector in va <<
61 // arguments: <<
62 // 1) cos(theta)^2, <<
63 // 2) (k_l/k)^2 <<
64 G4double S2(G4double, G4double) const; <<
65 <<
66 // Transmitted intensity with k-vector withi <<
67 // arguments: <<
68 // 1) cos(theta')^2, <<
69 // 2) (k_l/k')^2 <<
70 G4double SS2(G4double, G4double) const; <<
71 <<
72 // Fourier-tranform of the autocorrelation f <<
73 // arguments: <<
74 // 1) k^2, <<
75 // 2) theta_i, <<
76 // 3) theta_o, <<
77 // 4) phi_o, <<
78 // 5) b^2, <<
79 // 6) w^2, <<
80 // 7) angular cut <<
81 G4double Fmu(G4double, G4double, G4double, G <<
82 <<
83 // Fourier-tranform of the autocorrelation f <<
84 // the medium <<
85 // arguments: <<
86 // 1) k, <<
87 // 2) k', <<
88 // 3) theta_i, <<
89 // 4) theta'_o, <<
90 // 5) phi'_o, <<
91 // 6) b^2, <<
92 // 7) w^2, <<
93 // 8) angular cut <<
94 // 9) theta_refract <<
95 G4double FmuS( <<
96 G4double, G4double, G4double, G4double, G4 <<
97 <<
98 // Integral probability for non-specular ref <<
99 // arguments: <<
100 // 1) E, <<
101 // 2) V_F, <<
102 // 3) theta_i, <<
103 // 4) number of angles theta_o for w <<
104 // 5) number of angles phi_o for whi <<
105 // 6) b^2, <<
106 // 7) w^2, <<
107 // 8) pointer to G4double array with <<
108 // 9) angular cut <<
109 G4double IntIplus( <<
110 G4double, G4double, G4double, G4int, G4int <<
111 <<
112 // Probability of non-specular reflection wi <<
113 // arguments: <<
114 // 1) E, <<
115 // 2) V_F, <<
116 // 3) theta_i, <<
117 // 4) theta_o, <<
118 // 5) phi_o, <<
119 // 6) b, <<
120 // 7) w, <<
121 // 8) angular cut <<
122 G4double ProbIplus( <<
123 G4double, G4double, G4double, G4double, G4 <<
124 <<
125 // Integral probability for non-specular tra <<
126 // arguments: <<
127 // 1) E, <<
128 // 2) V_F, <<
129 // 3) theta_i, <<
130 // 4) number of angles theta_o for w <<
131 // 5) number of angles phi_o for whi <<
132 // 6) b^2, <<
133 // 7) w^2, <<
134 // 8) pointer to G4double array with <<
135 // 9) angular cut <<
136 G4double IntIminus( <<
137 G4double, G4double, G4double, G4int, G4int <<
138 <<
139 // Probability of non-specular transmission <<
140 // arguments: <<
141 // 1) E, <<
142 // 2) V_F, <<
143 // 3) theta_i, <<
144 // 4) theta'_o, <<
145 // 5) phi'_o, <<
146 // 6) b, <<
147 // 7) w, <<
148 // 8) angular cut <<
149 G4double ProbIminus( <<
150 G4double, G4double, G4double, G4double, G4 <<
151 <<
152 protected: <<
153 G4UCNMicroRoughnessHelper() = default; <<
154 ~G4UCNMicroRoughnessHelper(); <<
155 181
156 private: <<
157 static G4UCNMicroRoughnessHelper* fpInstance <<
158 }; 182 };
159 183
160 #endif // G4MICROROUGHNESSHELPER_HH << 184 #endif // G4MICROROUGHNESSHELPER_HH
161 185