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EpdReco calibration fixes #3816

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EpdReco calibration fixes #3816

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25 changes: 22 additions & 3 deletions offline/packages/epd/EpdReco.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -48,7 +48,7 @@ int EpdReco::InitRun(PHCompositeNode *topNode)
}
if (!m_overrideFieldName)
{
m_fieldname = "sepd_calib";
m_fieldname = "mip_calib";
}
std::string calibdir = CDBInterface::instance()->getUrl(m_calibName);
if (!calibdir.empty())
Expand All @@ -62,6 +62,12 @@ int EpdReco::InitRun(PHCompositeNode *topNode)
exit(1);
}

for (unsigned int ch = 0; ch < 744; ch++)
{
unsigned int key = TowerInfoDefs::encode_epd(ch);
m_calibration_constants[ch] = cdbttree->GetFloatValue(key, m_fieldname);
}

CreateNodes(topNode);

PHNodeIterator node_itr(topNode);
Expand Down Expand Up @@ -141,8 +147,21 @@ int EpdReco::process_event(PHCompositeNode *topNode)
{
float ch_time = _sepd_towerinfo->get_tower_at_channel(ch)->get_time_float();
float ch_adc = _sepd_towerinfo->get_tower_at_channel(ch)->get_energy();
float ch_mpv = cdbttree->GetFloatValue(ch, m_fieldname);
double ch_nmip = ch_adc / ch_mpv;
float ch_mpv = m_calibration_constants[ch];
double ch_nmip;

// Check for bad channel calibration constant
if (ch_mpv <= 0)
{
// Bad channel marker (-999) or invalid calibration
ch_nmip = 0.0;
m_TowerInfoContainer_calib->get_tower_at_channel(ch)->set_isNoCalib(true);
}
else
{
ch_nmip = ch_adc / ch_mpv;
}

m_TowerInfoContainer_calib->get_tower_at_channel(ch)->set_energy(ch_nmip);
m_TowerInfoContainer_calib->get_tower_at_channel(ch)->set_time_float(ch_time);
}
Expand Down
1 change: 1 addition & 0 deletions offline/packages/epd/EpdReco.h
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Expand Up @@ -43,6 +43,7 @@ class EpdReco : public SubsysReco

std::array<float, 24> tilephi{};
std::array<float, 12> tilephi0{};
std::array<float, 744> m_calibration_constants{};
};

#endif // EPD_EPDRECO_H