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Geant4/externals/clhep/include/CLHEP/Units/SystemOfUnits.h

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Differences between /externals/clhep/include/CLHEP/Units/SystemOfUnits.h (Version 11.3.0) and /externals/clhep/include/CLHEP/Units/SystemOfUnits.h (Version 5.0)


  1 // -*- C++ -*-                                      1 
  2 // -------------------------------------------    
  3 // HEP coherent system of Units                   
  4 //                                                
  5 // This file has been provided to CLHEP by Gea    
  6 //                                                
  7 // The basic units are :                          
  8 // millimeter              (millimeter)           
  9 // nanosecond              (nanosecond)           
 10 // Mega electron Volt      (MeV)                  
 11 // positron charge         (eplus)                
 12 // degree Kelvin           (kelvin)               
 13 // the amount of substance (mole)                 
 14 // luminous intensity      (candela)              
 15 // radian                  (radian)               
 16 // steradian               (steradian)            
 17 //                                                
 18 // Below is a non exhaustive list of derived a    
 19 // (i.e. mostly the SI units).                    
 20 // You can add your own units.                    
 21 //                                                
 22 // The SI numerical value of the positron char    
 23 // as it is needed for conversion factor : pos    
 24 //                                                
 25 // The others physical constants are defined i    
 26 // PhysicalConstants.h                            
 27 //                                                
 28 // Authors: M.Maire, S.Giani                      
 29 //                                                
 30 // History:                                       
 31 //                                                
 32 // 06.02.96   Created.                            
 33 // 28.03.96   Added miscellaneous constants.      
 34 // 05.12.97   E.Tcherniaev: Redefined pascal (    
 35 // 20.05.98   names: meter, second, gram, radi    
 36 //            (from Brian.Lasiuk@yale.edu (STA    
 37 // 05.08.98   angstrom, picobarn, microsecond,    
 38 // 01.03.01   parsec                              
 39 // 31.01.06   kilogray, milligray, microgray      
 40 // 29.04.08   use PDG 2006 value of e_SI          
 41 // 03.11.08   use PDG 2008 value of e_SI          
 42 // 19.08.15   added liter and its sub units (m    
 43 // 12.01.16   added symbols for microsecond (u    
 44 // 17.07.20   use PDG 2019 value of e_SI          
 45 // 06.05.21   added minute, hour, day, year an    
 46                                                   
 47 #ifndef HEP_SYSTEM_OF_UNITS_H                     
 48 #define HEP_SYSTEM_OF_UNITS_H                     
 49                                                   
 50 namespace CLHEP {                                 
 51                                                   
 52   //                                              
 53   //                                              
 54   //                                              
 55   static constexpr double     pi  = 3.14159265    
 56   static constexpr double  twopi  = 2*pi;         
 57   static constexpr double halfpi  = pi/2;         
 58   static constexpr double     pi2 = pi*pi;        
 59                                                   
 60   //                                              
 61   // Length [L]                                   
 62   //                                              
 63   static constexpr double millimeter  = 1.;       
 64   static constexpr double millimeter2 = millim    
 65   static constexpr double millimeter3 = millim    
 66                                                   
 67   static constexpr double centimeter  = 10.*mi    
 68   static constexpr double centimeter2 = centim    
 69   static constexpr double centimeter3 = centim    
 70                                                   
 71   static constexpr double meter  = 1000.*milli    
 72   static constexpr double meter2 = meter*meter    
 73   static constexpr double meter3 = meter*meter    
 74                                                   
 75   static constexpr double kilometer = 1000.*me    
 76   static constexpr double kilometer2 = kilomet    
 77   static constexpr double kilometer3 = kilomet    
 78                                                   
 79   static constexpr double parsec = 3.085677580    
 80                                                   
 81   static constexpr double micrometer = 1.e-6 *    
 82   static constexpr double  nanometer = 1.e-9 *    
 83   static constexpr double  angstrom  = 1.e-10*    
 84   static constexpr double  fermi     = 1.e-15*    
 85                                                   
 86   static constexpr double      barn = 1.e-28*m    
 87   static constexpr double millibarn = 1.e-3 *b    
 88   static constexpr double microbarn = 1.e-6 *b    
 89   static constexpr double  nanobarn = 1.e-9 *b    
 90   static constexpr double  picobarn = 1.e-12*b    
 91                                                   
 92   // symbols                                      
 93   static constexpr double nm  = nanometer;        
 94   static constexpr double um  = micrometer;       
 95                                                   
 96   static constexpr double mm  = millimeter;       
 97   static constexpr double mm2 = millimeter2;      
 98   static constexpr double mm3 = millimeter3;      
 99                                                   
100   static constexpr double cm  = centimeter;       
101   static constexpr double cm2 = centimeter2;      
102   static constexpr double cm3 = centimeter3;      
103                                                   
104   static constexpr double liter = 1.e+3*cm3;      
105   static constexpr double  L = liter;             
106   static constexpr double dL = 1.e-1*liter;       
107   static constexpr double cL = 1.e-2*liter;       
108   static constexpr double mL = 1.e-3*liter;       
109                                                   
110   static constexpr double m  = meter;             
111   static constexpr double m2 = meter2;            
112   static constexpr double m3 = meter3;            
113                                                   
114   static constexpr double km  = kilometer;        
115   static constexpr double km2 = kilometer2;       
116   static constexpr double km3 = kilometer3;       
117                                                   
118   static constexpr double pc = parsec;            
119                                                   
120   //                                              
121   // Angle                                        
122   //                                              
123   static constexpr double radian      = 1.;       
124   static constexpr double milliradian = 1.e-3*    
125   static constexpr double degree = (pi/180.0)*    
126                                                   
127   static constexpr double   steradian = 1.;       
128                                                   
129   // symbols                                      
130   static constexpr double rad  = radian;          
131   static constexpr double mrad = milliradian;     
132   static constexpr double sr   = steradian;       
133   static constexpr double deg  = degree;          
134                                                   
135   //                                              
136   // Time [T]                                     
137   //                                              
138   static constexpr double nanosecond  = 1.;       
139   static constexpr double second      = 1.e+9     
140   static constexpr double millisecond = 1.e-3     
141   static constexpr double microsecond = 1.e-6     
142   static constexpr double picosecond  = 1.e-12    
143                                                   
144   static constexpr double minute = 60*second;     
145   static constexpr double hour   = 60*minute;     
146   static constexpr double day    = 24*hour;       
147   static constexpr double year   = 365*day;       
148                                                   
149   static constexpr double hertz = 1./second;      
150   static constexpr double kilohertz = 1.e+3*he    
151   static constexpr double megahertz = 1.e+6*he    
152                                                   
153   // symbols                                      
154   static constexpr double ns = nanosecond;        
155   static constexpr double  s = second;            
156   static constexpr double ms = millisecond;       
157   static constexpr double us = microsecond;       
158   static constexpr double ps = picosecond;        
159                                                   
160   //                                              
161   // Electric charge [Q]                          
162   //                                              
163   static constexpr double eplus = 1. ;// posit    
164   static constexpr double e_SI  = 1.602176634e    
165   static constexpr double coulomb = eplus/e_SI    
166                                                   
167   //                                              
168   // Energy [E]                                   
169   //                                              
170   static constexpr double megaelectronvolt = 1    
171   static constexpr double     electronvolt = 1    
172   static constexpr double kiloelectronvolt = 1    
173   static constexpr double gigaelectronvolt = 1    
174   static constexpr double teraelectronvolt = 1    
175   static constexpr double petaelectronvolt = 1    
176   static constexpr double millielectronvolt =     
177                                                   
178   static constexpr double joule = electronvolt    
179                                                   
180   // symbols                                      
181   static constexpr double MeV = megaelectronvo    
182   static constexpr double  eV = electronvolt;     
183   static constexpr double keV = kiloelectronvo    
184   static constexpr double GeV = gigaelectronvo    
185   static constexpr double TeV = teraelectronvo    
186   static constexpr double PeV = petaelectronvo    
187                                                   
188   //                                              
189   // Mass [E][T^2][L^-2]                          
190   //                                              
191   static constexpr double  kilogram = joule*se    
192   static constexpr double      gram = 1.e-3*ki    
193   static constexpr double milligram = 1.e-3*gr    
194                                                   
195   // symbols                                      
196   static constexpr double  kg = kilogram;         
197   static constexpr double   g = gram;             
198   static constexpr double  mg = milligram;        
199                                                   
200   //                                              
201   // Power [E][T^-1]                              
202   //                                              
203   static constexpr double watt = joule/second;    
204                                                   
205   //                                              
206   // Force [E][L^-1]                              
207   //                                              
208   static constexpr double newton = joule/meter    
209                                                   
210   //                                              
211   // Pressure [E][L^-3]                           
212   //                                              
213 #define pascal hep_pascal                         
214   static constexpr double hep_pascal = newton/    
215   static constexpr double bar        = 100000*    
216   static constexpr double atmosphere = 101325*    
217                                                   
218   //                                              
219   // Electric current [Q][T^-1]                   
220   //                                              
221   static constexpr double      ampere = coulom    
222   static constexpr double milliampere = 1.e-3*    
223   static constexpr double microampere = 1.e-6*    
224   static constexpr double  nanoampere = 1.e-9*    
225                                                   
226   //                                              
227   // Electric potential [E][Q^-1]                 
228   //                                              
229   static constexpr double megavolt = megaelect    
230   static constexpr double kilovolt = 1.e-3*meg    
231   static constexpr double     volt = 1.e-6*meg    
232                                                   
233   //                                              
234   // Electric resistance [E][T][Q^-2]             
235   //                                              
236   static constexpr double ohm = volt/ampere;//    
237                                                   
238   //                                              
239   // Electric capacitance [Q^2][E^-1]             
240   //                                              
241   static constexpr double farad = coulomb/volt    
242   static constexpr double millifarad = 1.e-3*f    
243   static constexpr double microfarad = 1.e-6*f    
244   static constexpr double  nanofarad = 1.e-9*f    
245   static constexpr double  picofarad = 1.e-12*    
246                                                   
247   //                                              
248   // Magnetic Flux [T][E][Q^-1]                   
249   //                                              
250   static constexpr double weber = volt*second;    
251                                                   
252   //                                              
253   // Magnetic Field [T][E][Q^-1][L^-2]            
254   //                                              
255   static constexpr double tesla     = volt*sec    
256                                                   
257   static constexpr double gauss     = 1.e-4*te    
258   static constexpr double kilogauss = 1.e-1*te    
259                                                   
260   //                                              
261   // Inductance [T^2][E][Q^-2]                    
262   //                                              
263   static constexpr double henry = weber/ampere    
264                                                   
265   //                                              
266   // Temperature                                  
267   //                                              
268   static constexpr double kelvin = 1.;            
269                                                   
270   //                                              
271   // Amount of substance                          
272   //                                              
273   static constexpr double mole = 1.;              
274                                                   
275   //                                              
276   // Activity [T^-1]                              
277   //                                              
278   static constexpr double becquerel = 1./secon    
279   static constexpr double curie = 3.7e+10 * be    
280   static constexpr double kilobecquerel = 1.e+    
281   static constexpr double megabecquerel = 1.e+    
282   static constexpr double gigabecquerel = 1.e+    
283   static constexpr double millicurie = 1.e-3*c    
284   static constexpr double microcurie = 1.e-6*c    
285   static constexpr double Bq = becquerel;         
286   static constexpr double kBq = kilobecquerel;    
287   static constexpr double MBq = megabecquerel;    
288   static constexpr double GBq = gigabecquerel;    
289   static constexpr double Ci = curie;             
290   static constexpr double mCi = millicurie;       
291   static constexpr double uCi = microcurie;       
292                                                   
293   //                                              
294   // Absorbed dose [L^2][T^-2]                    
295   //                                              
296   static constexpr double      gray = joule/ki    
297   static constexpr double  kilogray = 1.e+3*gr    
298   static constexpr double milligray = 1.e-3*gr    
299   static constexpr double microgray = 1.e-6*gr    
300                                                   
301   //                                              
302   // Luminous intensity [I]                       
303   //                                              
304   static constexpr double candela = 1.;           
305                                                   
306   //                                              
307   // Luminous flux [I]                            
308   //                                              
309   static constexpr double lumen = candela*ster    
310                                                   
311   //                                              
312   // Illuminance [I][L^-2]                        
313   //                                              
314   static constexpr double lux = lumen/meter2;     
315                                                   
316   //                                              
317   // Miscellaneous                                
318   //                                              
319   static constexpr double perCent     = 0.01 ;    
320   static constexpr double perThousand = 0.001;    
321   static constexpr double perMillion  = 0.0000    
322                                                   
323 }  // namespace CLHEP                             
324                                                   
325 #endif /* HEP_SYSTEM_OF_UNITS_H */                
326