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helper to get nominal L3 field #7506

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Merged
jgrosseo merged 3 commits into from
Nov 5, 2021
Merged

helper to get nominal L3 field #7506

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4e74dbc
helper to get nominal L3 field
jgrosseo Nov 3, 2021
5087e36
do not make temporary values persistent
jgrosseo Nov 3, 2021
e740701
Update DataFormats/Parameters/include/DataFormatsParameters/GRPObject.h
jgrosseo Nov 4, 2021
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18 changes: 17 additions & 1 deletion DataFormats/Parameters/include/DataFormatsParameters/GRPObject.h
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Original file line number Diff line number Diff line change
Expand Up @@ -82,6 +82,7 @@ class GRPObject
void setL3Current(o2::units::Current_t v) { mL3Current = v; }
void setDipoleCurrent(o2::units::Current_t v) { mDipoleCurrent = v; }
void setFieldUniformity(bool v) { mUniformField = v; }
int8_t getNominalL3Field();
/// getter/setter for data taking period name
const std::string& getDataPeriod() const { return mDataPeriod; }
void setDataPeriod(const std::string v) { mDataPeriod = v; }
Expand Down Expand Up @@ -158,14 +159,17 @@ class GRPObject
bool mUniformField = false; ///< uniformity of magnetic field
float mBeamEnergyPerZ = 0.f; ///< beam energy per charge (i.e. sqrt(s)/2 for pp)

int8_t mNominalL3Field = 0; //!< Nominal L3 field deduced from mL3Current
bool mNominalL3FieldValid = false; //!< Has the field been computed (for caching)

int mBeamAZ[beamDirection::NBeamDirections] = {0, 0}; ///< A<<16+Z for each beam

int mRun = 0; ///< run identifier
int mFill = 0; ///< fill identifier
std::string mDataPeriod = ""; ///< name of the period
std::string mLHCState = ""; ///< machine state

ClassDefNV(GRPObject, 5);
ClassDefNV(GRPObject, 6);
};

//______________________________________________
Expand All @@ -176,6 +180,18 @@ inline float GRPObject::getBeamZ2A(beamDirection b) const
return a ? getBeamZ(b) / static_cast<float>(a) : 0.f;
}

//______________________________________________
inline int8_t GRPObject::getNominalL3Field()
{
// compute nominal L3 field in kG

if (mNominalL3FieldValid == false) {
mNominalL3Field = std::lround(5.f * mL3Current / 30000.f);
mNominalL3FieldValid = true;
}
return mNominalL3Field;
}

} // namespace parameters
} // namespace o2

Expand Down