LETAccumulable.hh

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/// \file radiobiology/include/LETAccumulable.hh
/// \brief Definition of the RadioBio::LETAccumulable class
 
#ifndef RadiobiologyLETACCUMULABLE_HH
#define RadiobiologyLETACCUMULABLE_HH
 
#include "IonLet.hh"
#include "VRadiobiologicalAccumulable.hh"
#include <G4VAccumulable.hh>
 
#include <valarray>
#include <vector>
 
namespace RadioBio
{
 
// Forward declariation of other radiobiology classes
class Hit;
class VoxelizedSensitiveDetector;
 
/**
 * @brief Accumulable of LET-related data (that must be thread-local).
 *
 * It keeps the sum of alpha and beta numerators/denominator, as well as energy deposits.
 * The class is closely tied with the singLETon LET that is used both
 * to calculate alphas and betas, and also to store results.
 *
 * This is implemented as a customized G4VAccumulable with non-scalar data.
 *
 * @note There are two levels of merging (accumulation):
 *   1) From more threads in one run (G4VAccumulable merging is applied)
 *   2) (Optional) inter-run merging of data (implemented in LET).
 *
 * @note std::valarray is used (instead of C arrays or std::vectors)
 *    to accumulate data for its logical simplicity.
 */
class LETAccumulable : public VRadiobiologicalAccumulable
{
  public:
    LETAccumulable();
    LETAccumulable(const LETAccumulable& other) = default;
 
    // G4VAccumulable virtual methods to override
    void Merge(const G4VAccumulable& rhs) override;
    void Reset() override;
 
    // Store information from a single step
    void Accumulate(Hit* hit) override;
 
    // Type alias for numerical arrays
    using array_type = std::valarray<G4double>;
 
    // Access to stored data (to be called on the merged data)
    const array_type GetTotalLETT() const { return fTotalLETT; }
    const array_type GetTotalLETD() const { return fTotalLETD; }
    const array_type GetDTotalLETT() const { return fDTotalLETT; }
    const array_type GetDTotalLETD() const { return fDTotalLETD; }
 
    const std::vector<IonLet> GetIonLetStore() const { return fIonLetStore; }
 
    // Verbosity, shared with LET
    G4int GetVerboseLevel() const;
 
  private:
    // Apply configuration from the LET class and prepare matrices
    void Initialize();
    G4bool fInitialized{false};
 
    array_type fTotalLETT = {};
    array_type fTotalLETD = {};
    array_type fDTotalLETT = {};
    array_type fDTotalLETD = {};
 
    std::vector<IonLet> fIonLetStore = {};
};
 
}  // namespace RadioBio
 
#endif  // LETACCUMULABLE_HH