TimingCutState Class Reference

Helper for TimingCut state. More...

#include <HLTPrefilter.h>

Public Member Functions
bool	computeDecision ()

Public Attributes
double	LERtimeSinceLastInjectionMin = 0.0
	Define thresholds for variables.
double	LERtimeSinceLastInjectionMax = 0.0
	Maximum threshold of timeSinceLastInjection for LER injection.
double	HERtimeSinceLastInjectionMin = 0.0
	Minimum threshold of timeSinceLastInjection for HER injection.
double	HERtimeSinceLastInjectionMax = 0.0
	Maximum threshold of timeSinceLastInjection for HER injection.
double	LERtimeInBeamCycleMin = 0.0
	Minimum threshold of timeInBeamCycle for LER injection.
double	LERtimeInBeamCycleMax = 0.0
	Maximum threshold of timeInBeamCycle for LER injection.
double	HERtimeInBeamCycleMin = 0.0
	Minimum threshold of timeInBeamCycle for HER injection.
double	HERtimeInBeamCycleMax = 0.0
	Maximum threshold of timeInBeamCycle for LER injection.
unsigned int	prescale = 1000
	Prescale for accepting HLTPrefilter lines, by default we randomly accept 1 out of every 1000 events.

Private Attributes
StoreObjPtr< EventLevelTriggerTimeInfo >	m_TTDInfo
	Store array object for injection time info.
DBObjPtr< BunchStructure >	m_bunchStructure
	Define object for BunchStructure class.
DBObjPtr< HardwareClockSettings >	m_clockSettings
	Define object for HardwareClockSettings class.

Detailed Description

Helper for TimingCut state.

Definition at line 31 of file HLTPrefilter.h.

Member Function Documentation

computeDecision()

bool computeDecision ( )

inline

Calculate revolution time of beam

Fetch global clock

Definition at line 64 of file HLTPrefilter.h.

    {
      if (m_TTDInfo.isValid()) {
        const double revolutionTime = m_bunchStructure->getRFBucketsPerRevolution() * 1e-3 /
                                      m_clockSettings->getAcceleratorRF(); // [microsecond]
        const double globalClock = m_clockSettings->getGlobalClockFrequency() * 1e3; // [microsecond]
        // Calculate time since last injection
        const double timeSinceLastInj = m_TTDInfo->getTimeSinceLastInjection() / globalClock; // [microsecond]
        // Calculate time in beam cycle
        const double timeInBeamCycle = timeSinceLastInj - (int)(timeSinceLastInj / revolutionTime) * revolutionTime; // [microsecond]
 
        // Check if events are in injection strip of LER
        const bool LER_strip = (LERtimeSinceLastInjectionMin < timeSinceLastInj &&
                                timeSinceLastInj < LERtimeSinceLastInjectionMax &&
                                LERtimeInBeamCycleMin < timeInBeamCycle &&
                                timeInBeamCycle < LERtimeInBeamCycleMax);
 
        // Check if events are in injection strip of HER
        const bool HER_strip = (HERtimeSinceLastInjectionMin < timeSinceLastInj &&
                                timeSinceLastInj < HERtimeSinceLastInjectionMax &&
                                HERtimeInBeamCycleMin < timeInBeamCycle &&
                                timeInBeamCycle < HERtimeInBeamCycleMax);
 
        // Tag events inside injection strip with a prescale
        return (LER_strip || HER_strip) && !SoftwareTrigger::makePreScale(prescale);
      } else
        return false;
    }

Member Data Documentation

HERtimeInBeamCycleMax

double HERtimeInBeamCycleMax = 0.0

Maximum threshold of timeInBeamCycle for LER injection.

Definition at line 60 of file HLTPrefilter.h.

HERtimeInBeamCycleMin

double HERtimeInBeamCycleMin = 0.0

Minimum threshold of timeInBeamCycle for HER injection.

Definition at line 58 of file HLTPrefilter.h.

HERtimeSinceLastInjectionMax

double HERtimeSinceLastInjectionMax = 0.0

Maximum threshold of timeSinceLastInjection for HER injection.

Definition at line 52 of file HLTPrefilter.h.

HERtimeSinceLastInjectionMin

double HERtimeSinceLastInjectionMin = 0.0

Minimum threshold of timeSinceLastInjection for HER injection.

Definition at line 50 of file HLTPrefilter.h.

LERtimeInBeamCycleMax

double LERtimeInBeamCycleMax = 0.0

Maximum threshold of timeInBeamCycle for LER injection.

Definition at line 56 of file HLTPrefilter.h.

LERtimeInBeamCycleMin

double LERtimeInBeamCycleMin = 0.0

Minimum threshold of timeInBeamCycle for LER injection.

Definition at line 54 of file HLTPrefilter.h.

LERtimeSinceLastInjectionMax

double LERtimeSinceLastInjectionMax = 0.0

Maximum threshold of timeSinceLastInjection for LER injection.

Definition at line 48 of file HLTPrefilter.h.

LERtimeSinceLastInjectionMin

double LERtimeSinceLastInjectionMin = 0.0

Define thresholds for variables.

By default, no events are skipped based upon these requirements. Minimum threshold of timeSinceLastInjection for LER injection

Definition at line 46 of file HLTPrefilter.h.

m_bunchStructure

DBObjPtr<BunchStructure> m_bunchStructure

private

Define object for BunchStructure class.

bunch structure (fill pattern)

Definition at line 38 of file HLTPrefilter.h.

m_clockSettings

DBObjPtr<HardwareClockSettings> m_clockSettings

private

Define object for HardwareClockSettings class.

hardware clock settings

Definition at line 41 of file HLTPrefilter.h.

m_TTDInfo

StoreObjPtr<EventLevelTriggerTimeInfo> m_TTDInfo

private

Store array object for injection time info.

Definition at line 35 of file HLTPrefilter.h.

prescale

unsigned int prescale = 1000

Prescale for accepting HLTPrefilter lines, by default we randomly accept 1 out of every 1000 events.

Definition at line 62 of file HLTPrefilter.h.

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The documentation for this class was generated from the following file:

• hlt/utilities/include/HLTPrefilter.h