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add helper to get nominal field by jgrosseo · Pull Request #10256 · AliceO2Group/AliceO2 · GitHub

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add helper to get nominal field #10256

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jgrosseo merged 1 commit into from
Nov 12, 2022
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add helper to get nominal field #10256

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16 changes: 15 additions & 1 deletion DataFormats/Parameters/include/DataFormatsParameters/GRPMagField.h
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,7 @@ class GRPMagField
o2::units::Current_t getL3Current() const { return mL3Current; }
o2::units::Current_t getDipoleCurrent() const { return mDipoleCurrent; }
bool getFieldUniformity() const { return mUniformField; }
int8_t getNominalL3Field();
void setL3Current(o2::units::Current_t v) { mL3Current = v; }
void setDipoleCurrent(o2::units::Current_t v) { mDipoleCurrent = v; }
void setFieldUniformity(bool v) { mUniformField = v; }
Expand All @@ -50,10 +51,23 @@ class GRPMagField
o2::units::Current_t mL3Current = 0.f; ///< signed current in L3
o2::units::Current_t mDipoleCurrent = 0.f; ///< signed current in Dipole
bool mUniformField = false; ///< uniformity of magnetic field
int8_t mNominalL3Field = 0; //!< Nominal L3 field deduced from mL3Current
bool mNominalL3FieldValid = false; //!< Has the field been computed (for caching)

ClassDefNV(GRPMagField, 1);
ClassDefNV(GRPMagField, 2);
};

inline int8_t GRPMagField::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

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