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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
41 // reported in F. Atchison et al., E 45 // reported in F. Atchison et al., Eur. Phys. J. A 44, 23–29 (2010)
42 // DOI: 10.1140/epja/i2 46 // DOI: 10.1140/epja/i2010-10926-x
43 // Thanks to Geza Zsigmond 47 // Thanks to Geza Zsigmond
44 // 48 //
45 // 02-11-19 Stefan Heule's thesis is availabl 49 // 02-11-19 Stefan Heule's thesis is available from PSI UCN group pages at
46 // https://www.psi.ch/en/ltp-ucn-phy 50 // https://www.psi.ch/en/ltp-ucn-physics/papers-and-theses
47 // or directly at https://opac.nebis 51 // or directly at https://opac.nebis.ch/ediss/20080426_002127549.pdf
48 52
49 #ifndef G4MICROROUGHNESSHELPER_HH 53 #ifndef G4MICROROUGHNESSHELPER_HH
50 #define G4MICROROUGHNESSHELPER_HH 1 54 #define G4MICROROUGHNESSHELPER_HH 1
51 55
52 #include "G4Types.hh" 56 #include "G4Types.hh"
53 57
>> 58 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 59
54 class G4UCNMicroRoughnessHelper 60 class G4UCNMicroRoughnessHelper
55 { 61 {
56 public: // with description << 62 public: // with description
57 static G4UCNMicroRoughnessHelper* GetInstanc << 63
>> 64 static G4UCNMicroRoughnessHelper* GetInstance();
>> 65
>> 66 protected:
>> 67
>> 68 G4UCNMicroRoughnessHelper();
>> 69 ~G4UCNMicroRoughnessHelper();
>> 70
>> 71 public: // with description
>> 72
>> 73 // Transmitted intensity with k-vector in vacuum
>> 74
>> 75 // arguments:
>> 76 // 1) cos(theta)^2,
>> 77 // 2) (k_l/k)^2
>> 78
>> 79 G4double S2(G4double, G4double) const;
>> 80
>> 81 // Transmitted intensity with k-vector within the medium
>> 82
>> 83 // arguments:
>> 84 // 1) cos(theta')^2,
>> 85 // 2) (k_l/k')^2
>> 86
>> 87 G4double SS2(G4double, G4double) const;
>> 88
>> 89 // Fourier-tranform of the autocorrelation function with k-vector in vacuum
>> 90
>> 91 // arguments:
>> 92 // 1) k^2,
>> 93 // 2) theta_i,
>> 94 // 3) theta_o,
>> 95 // 4) phi_o,
>> 96 // 5) b^2,
>> 97 // 6) w^2,
>> 98 // 7) angular cut
>> 99
>> 100 G4double Fmu(G4double, G4double, G4double,
>> 101 G4double, G4double, G4double, G4double) const;
>> 102
>> 103 // Fourier-tranform of the autocorrelation function with k-vector within
>> 104 // the medium
>> 105
>> 106 // arguments:
>> 107 // 1) k,
>> 108 // 2) k',
>> 109 // 3) theta_i,
>> 110 // 4) theta'_o,
>> 111 // 5) phi'_o,
>> 112 // 6) b^2,
>> 113 // 7) w^2,
>> 114 // 8) angular cut
>> 115 // 9) theta_refract
>> 116
>> 117 G4double FmuS(G4double, G4double, G4double, G4double,
>> 118 G4double, G4double, G4double, G4double, G4double) const;
>> 119
>> 120 // Integral probability for non-specular reflection
>> 121
>> 122 // arguments:
>> 123 // 1) E,
>> 124 // 2) V_F,
>> 125 // 3) theta_i,
>> 126 // 4) number of angles theta_o for which the probability is calculated,
>> 127 // 5) number of angles phi_o for which the probability is calculated,
>> 128 // 6) b^2,
>> 129 // 7) w^2,
>> 130 // 8) pointer to G4double array with max values of the probability,
>> 131 // 9) angular cut
>> 132
>> 133 G4double IntIplus(G4double, G4double, G4double, G4int, G4int,
>> 134 G4double, G4double, G4double*, G4double) const;
>> 135
>> 136 // Probability of non-specular reflection with the microroughness model
>> 137
>> 138 // arguments:
>> 139 // 1) E,
>> 140 // 2) V_F,
>> 141 // 3) theta_i,
>> 142 // 4) theta_o,
>> 143 // 5) phi_o,
>> 144 // 6) b,
>> 145 // 7) w,
>> 146 // 8) angular cut
>> 147
>> 148 G4double ProbIplus (G4double, G4double, G4double, G4double,
>> 149 G4double, G4double, G4double, G4double) const;
>> 150
>> 151 // Integral probability for non-specular transmission
>> 152
>> 153 // arguments:
>> 154 // 1) E,
>> 155 // 2) V_F,
>> 156 // 3) theta_i,
>> 157 // 4) number of angles theta_o for which the probability is calculated,
>> 158 // 5) number of angles phi_o for which the probability is calculated,
>> 159 // 6) b^2,
>> 160 // 7) w^2,
>> 161 // 8) pointer to G4double array with max values of the probability,
>> 162 // 9) angular cut
>> 163
>> 164 G4double IntIminus(G4double, G4double, G4double, G4int, G4int,
>> 165 G4double, G4double, G4double*, G4double) const;
>> 166
>> 167 // Probability of non-specular transmission with the microroughness model
>> 168
>> 169 // arguments:
>> 170 // 1) E,
>> 171 // 2) V_F,
>> 172 // 3) theta_i,
>> 173 // 4) theta'_o,
>> 174 // 5) phi'_o,
>> 175 // 6) b,
>> 176 // 7) w,
>> 177 // 8) angular cut
>> 178
>> 179 G4double ProbIminus (G4double, G4double, G4double, G4double,
>> 180 G4double, G4double, G4double, G4double) const;
>> 181
>> 182 private:
58 183
59 public: // with description << 184 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(); <<
155 185
156 private: <<
157 static G4UCNMicroRoughnessHelper* fpInstance <<
158 }; 186 };
159 187
160 #endif // G4MICROROUGHNESSHELPER_HH << 188 #endif // G4MICROROUGHNESSHELPER_HH
161 189