9 if ( waveLengthNm<300. || waveLengthNm>850 )
return 0.;
12 if ( waveLengthNm<500. )
13 return TMath::Exp(+waveLengthNm/144.3 - 5.0752);
15 return TMath::Exp(-waveLengthNm/290.7 + 0.1105);
static const double getEfficiency(const double &waveLengthNm)
Return efficiency for given photon wavelength (in nm)