00001 00014 #include <math.h> 00015 00016 #ifndef FMXXPHYSICOMATH_H_ 00017 #define FMXXPHYSICOMATH_H_ 00018 00019 const double PI=3.1415926535; /* universal geometric constant */ 00020 const double EPSILON_ZERO=8.85418782e-12; /* absolute permittivity of vacuum */ 00021 const double MU_ZERO=4.0 * PI * 1.0e-7; /* absolute permeability of vacuum */ 00022 const double SPEED_OF_LIGHT_VACUUM=(1.0/(sqrt(EPSILON_ZERO*MU_ZERO))); /* speed of light in vacuo */ 00023 const double Z0=sqrt(MU_ZERO/EPSILON_ZERO); /* characteristic impedance of vacuum */ 00024 00025 const double SIGMA_CU_CERN= 6.26e7; /* Siemsn per meter, value published in CERN summer school notes */ 00026 const double SIGMA_CU_PSI=5.8e7; /* Siemens per meter, value used at PSI for copper cavity */ 00027 00028 00029 #endif /*FMXXPHYSICOMATH_H_*/