1 package org.lcsim.units;
2
3 public final class SystemOfUnits
4 {
5
6
7
8 public static final double millimeter = 1.;
9 public static final double millimeter2 = millimeter*millimeter;
10 public static final double millimeter3 = millimeter*millimeter*millimeter;
11
12 public static final double centimeter = 10.*millimeter;
13 public static final double centimeter2 = centimeter*centimeter;
14 public static final double centimeter3 = centimeter*centimeter*centimeter;
15
16 public static final double meter = 1000.*millimeter;
17 public static final double meter2 = meter*meter;
18 public static final double meter3 = meter*meter*meter;
19
20 public static final double kilometer = 1000.*meter;
21 public static final double kilometer2 = kilometer*kilometer;
22 public static final double kilometer3 = kilometer*kilometer*kilometer;
23
24 public static final double parsec = 3.0856775807e+16*meter;
25
26 public static final double micrometer = 1.e-6 *meter;
27 public static final double nanometer = 1.e-9 *meter;
28 public static final double angstrom = 1.e-10*meter;
29 public static final double fermi = 1.e-15*meter;
30
31 public static final double barn = 1.e-28*meter2;
32 public static final double millibarn = 1.e-3 *barn;
33 public static final double microbarn = 1.e-6 *barn;
34 public static final double nanobarn = 1.e-9 *barn;
35 public static final double picobarn = 1.e-12*barn;
36
37
38 public static final double nm = nanometer;
39 public static final double um = micrometer;
40
41 public static final double mm = millimeter;
42 public static final double mm2 = millimeter2;
43 public static final double mm3 = millimeter3;
44
45 public static final double cm = centimeter;
46 public static final double cm2 = centimeter2;
47 public static final double cm3 = centimeter3;
48
49 public static final double m = meter;
50 public static final double m2 = meter2;
51 public static final double m3 = meter3;
52
53 public static final double km = kilometer;
54 public static final double km2 = kilometer2;
55 public static final double km3 = kilometer3;
56
57 public static final double pc = parsec;
58
59
60
61
62 public static final double radian = 1.;
63 public static final double milliradian = 1.e-3*radian;
64 public static final double degree = (3.14159265358979323846/180.0)*radian;
65
66 public static final double steradian = 1.;
67
68
69 public static final double rad = radian;
70 public static final double mrad = milliradian;
71 public static final double sr = steradian;
72 public static final double deg = degree;
73
74
75
76
77 public static final double nanosecond = 1.;
78 public static final double second = 1.e+9 *nanosecond;
79 public static final double millisecond = 1.e-3 *second;
80 public static final double microsecond = 1.e-6 *second;
81 public static final double picosecond = 1.e-12*second;
82
83 public static final double hertz = 1./second;
84 public static final double kilohertz = 1.e+3*hertz;
85 public static final double megahertz = 1.e+6*hertz;
86
87
88 public static final double ns = nanosecond;
89 public static final double s = second;
90 public static final double ms = millisecond;
91
92
93
94
95 public static final double eplus = 1. ;
96 public static final double e_SI = 1.60217733e-19;
97 public static final double coulomb = eplus/e_SI;
98
99
100
101
102 public static final double ampere = coulomb/second;
103 public static final double milliampere = 1.e-3*ampere;
104 public static final double microampere = 1.e-6*ampere;
105 public static final double nanoampere = 1.e-9*ampere;
106
107
108
109
110 public static final double kelvin = 1.;
111
112
113
114
115 public static final double mole = 1.;
116 public static final double mol = mole;
117
118
119
120
121 public static final double becquerel = 1./second ;
122 public static final double curie = 3.7e+10 * becquerel;
123
124
125
126
127 public static final double gigaelectronvolt = 1.;
128 public static final double megaelectronvolt = 1.e-3*gigaelectronvolt;
129 public static final double kiloelectronvolt = 1.e-6*megaelectronvolt;
130 public static final double electronvolt = 1.e-9*gigaelectronvolt;
131 public static final double teraelectronvolt = 1.e+3*gigaelectronvolt;
132 public static final double petaelectronvolt = 1.e+6*gigaelectronvolt;
133
134 public static final double joule = electronvolt/e_SI;
135
136
137 public static final double MeV = megaelectronvolt;
138 public static final double eV = electronvolt;
139 public static final double keV = kiloelectronvolt;
140 public static final double GeV = gigaelectronvolt;
141 public static final double TeV = teraelectronvolt;
142 public static final double PeV = petaelectronvolt;
143
144
145
146
147 public static final double megavolt = megaelectronvolt/eplus;
148 public static final double kilovolt = 1.e-3*megavolt;
149 public static final double volt = 1.e-6*megavolt;
150
151
152
153
154 public static final double ohm = volt/ampere;
155
156
157
158
159 public static final double farad = coulomb/volt;
160 public static final double millifarad = 1.e-3*farad;
161 public static final double microfarad = 1.e-6*farad;
162 public static final double nanofarad = 1.e-9*farad;
163 public static final double picofarad = 1.e-12*farad;
164
165
166
167
168 public static final double weber = volt*second;
169
170
171
172
173 public static final double tesla = volt*second/meter2;
174 public static final double gauss = 1.e-4*tesla;
175 public static final double kilogauss = 1.e-1*tesla;
176
177
178
179
180 public static final double henry = weber/ampere;
181 }