Abstract interface for optical propagation. More...

#include <IOpticalPropagation.h>

Inheritance diagram for phot::IOpticalPropagation:

Public Types
Type aliases
using	VecSED = std::vector< sim::SimEnergyDeposit >

using	UPVecBTR = std::unique_ptr< std::vector< sim::OpDetBacktrackerRecord > >

Public Member Functions
virtual void	beginJob ()=0

virtual UPVecBTR	executeEvent (VecSED const &edeps)=0

virtual void	endJob ()=0

Detailed Description

Abstract interface for optical propagation.

This interface allows the addition of different optical photon propagation tools. As an art::tool, the executeEvent function is called once during a art::EDProducer::produce module execution, and uses all sim::SimEnergyDeposits from an art::Event found by the art::Handle .

I.e. a single executeEvent function call propagates all resulting optical photons from the existing batch of energy depositions on an event-by-event basis. It is currently expected to manage 3 methods:

PDFastSimPAR : already available in larsim
Celeritas : Full optical particle transport on CPU and GPU
Opticks : Full optical particle transport on Nvidia GPUs

The interfaces takes a vector of sim::SimEnergyDeposit as input and produces a vector of sim::OpDetBacktrackerRecord from detector hits.