Inheritance diagram for opdet::PMTGainFluctuations1Dynode:

Classes
struct	Config

Public Member Functions
	PMTGainFluctuations1Dynode (art::ToolConfigTable< Config > const &config)

double	GainFluctuation (unsigned int npe, CLHEP::HepRandomEngine *eng) override

Private Member Functions
double	DynodeGain (unsigned int dynstage)

Private Member Functions inherited from opdet::PMTGainFluctuations
virtual	~PMTGainFluctuations () noexcept=default

Private Attributes
double	fDynodeK

double	fGain

std::vector< double >	fVoltageDistribution

double	fDynodeGain

Detailed Description

Definition at line 30 of file PMTGainFluctuations1Dynode_tool.cc.

Constructor & Destructor Documentation

opdet::PMTGainFluctuations1Dynode::PMTGainFluctuations1Dynode ( art::ToolConfigTable< Config > const & config )

explicit

Definition at line 72 of file PMTGainFluctuations1Dynode_tool.cc.

   : fDynodeK { config().dynodeK() }
   , fGain { config().gain() }
   , fVoltageDistribution { config().voltageDistribution() }
   , fDynodeGain { DynodeGain(1) }
 {
 }

Member Function Documentation

double opdet::PMTGainFluctuations1Dynode::DynodeGain ( unsigned int dynstage )

private

Definition at line 81 of file PMTGainFluctuations1Dynode_tool.cc.

                                                                        {
   double prodRho = 1.0;
   for(double rho: fVoltageDistribution) prodRho *= rho;
   double const aVk = std::pow(fGain / std::pow(prodRho, fDynodeK), 1.0/static_cast<double>(fVoltageDistribution.size()));
   return aVk * std::pow(fVoltageDistribution.at(dynstage - 1), fDynodeK);
 }

double opdet::PMTGainFluctuations1Dynode::GainFluctuation	(	unsigned int	npe,
		CLHEP::HepRandomEngine *	eng
	)

overridevirtual

Implements opdet::PMTGainFluctuations.

Definition at line 89 of file PMTGainFluctuations1Dynode_tool.cc.

                                                                                                   {
   return CLHEP::RandPoissonQ::shoot(eng, npe*fDynodeGain)/fDynodeGain;
 }