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Use the LHC orbit duration for CTP scaler rates #15831

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Merged
sawenzel merged 1 commit into from
Sep 23, 2026
+6 −5
Merged

Use the LHC orbit duration for CTP scaler rates #15831

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11 changes: 6 additions & 5 deletions DataFormats/Detectors/CTP/src/Scalers.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@
#include <iostream>
#include <iomanip>
#include "CommonUtils/StringUtils.h"
#include "CommonConstants/LHCConstants.h"
#include <fairlogger/Logger.h>

using namespace o2::ctp;
Expand Down Expand Up @@ -544,8 +545,8 @@ int CTPRunScalers::printRates()
CTPScalerRecordO2* scalrec1 = &mScalerRecordO2[i];
double_t tt = (double_t)(scalrec1->intRecord.orbit - scalrec0->intRecord.orbit);
double_t tinrun = (double_t)(scalrec1->intRecord.orbit - orbit0);
tt = tt * 88e-6;
tinrun = tinrun * 88e-6;
tt = tt * o2::constants::lhc::LHCOrbitMUS * 1.e-6;
tinrun = tinrun * o2::constants::lhc::LHCOrbitMUS * 1.e-6;
std::cout << "==> Time wrt to SOR [s]:" << tinrun << " time intervale[s]:" << tt << std::endl;
for (uint32_t j = 0; j < scalrec1->scalers.size(); j++) {
CTPScalerO2* s0 = &(scalrec0->scalers[j]);
Expand Down Expand Up @@ -645,7 +646,7 @@ void CTPRunScalers::printLMBRateVsT() const
auto prev = &mScalerRecordO2[i - 1];
auto curr = &mScalerRecordO2[i];
double_t tt = (double_t)(curr->intRecord.orbit - prev->intRecord.orbit);
tt = tt * 88e-6;
tt = tt * o2::constants::lhc::LHCOrbitMUS * 1.e-6;

for (int j = 0; j < 1; j++) { // loop over classes
auto s0 = &(prev->scalers[j]); // type CTPScalerO2*
Expand Down Expand Up @@ -749,7 +750,7 @@ std::pair<double, double> CTPRunScalers::getRate(uint32_t orbit, int classindex,
auto calcRate = [&](auto index1, auto index2) -> double {
const auto& snext = mScalerRecordO2[index2];
const auto& sprev = mScalerRecordO2[index1];
auto timedelta = (snext.intRecord.orbit - sprev.intRecord.orbit) * 88.e-6; // converts orbits into time
auto timedelta = (snext.intRecord.orbit - sprev.intRecord.orbit) * o2::constants::lhc::LHCOrbitMUS * 1.e-6; // converts orbits into time
if (type < 7) {
const auto& s0 = sprev.scalers[classindex]; // type CTPScalerO2*
const auto& s1 = snext.scalers[classindex];
Expand Down Expand Up @@ -826,7 +827,7 @@ std::pair<double, double> CTPRunScalers::getRateGivenT(double timestamp, int cla
auto calcRate = [&](auto index1, auto index2) -> double {
const auto& snext = mScalerRecordO2[index2];
const auto& sprev = mScalerRecordO2[index1];
auto timedelta = (snext.intRecord.orbit - sprev.intRecord.orbit) * 88.e-6; // converts orbits into time
auto timedelta = (snext.intRecord.orbit - sprev.intRecord.orbit) * o2::constants::lhc::LHCOrbitMUS * 1.e-6; // converts orbits into time
// std::cout << "timedelta:" << timedelta << std::endl;
if (type < 7) {
const auto& s0 = sprev.scalers[classindex]; // type CTPScalerO2*
Expand Down
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